CN112524566A - High heat dissipation LED light source - Google Patents

High heat dissipation LED light source Download PDF

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Publication number
CN112524566A
CN112524566A CN202011358425.1A CN202011358425A CN112524566A CN 112524566 A CN112524566 A CN 112524566A CN 202011358425 A CN202011358425 A CN 202011358425A CN 112524566 A CN112524566 A CN 112524566A
Authority
CN
China
Prior art keywords
light source
led light
heat dissipation
high heat
glue layer
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202011358425.1A
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Chinese (zh)
Inventor
王孟源
曾伟强
董挺波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Evercore Optoelectronic Technology Co ltd
Original Assignee
Foshan Evercore Optoelectronic Technology Co ltd
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
Application filed by Foshan Evercore Optoelectronic Technology Co ltd filed Critical Foshan Evercore Optoelectronic Technology Co ltd
Priority to CN202011358425.1A priority Critical patent/CN112524566A/en
Publication of CN112524566A publication Critical patent/CN112524566A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention discloses a high-heat-dissipation LED light source which comprises a heat dissipation seat, an LED light source, a condenser and a fluorescent glue layer, wherein the heat dissipation seat, the LED light source, the condenser and the fluorescent glue layer are sequentially arranged; the condenser includes integrated into one piece's portion of gathering together and constriction, it is close to gather together the portion LED light source sets up, the constriction is close to the fluorescence glue layer sets up, gather together the portion be used for with the incident light that the LED light source sent turns into the parallel light, the constriction is used for the adjustment the facula of parallel light, just the length of gathering together the portion is 3 ~ 15mm, the length of constriction is 10 ~ 40 mm. The high-heat-dissipation LED light source provided by the technical scheme is beneficial to improving the heat dissipation effect on the premise of ensuring the light emitting effect, and has the advantages of simple structure and reliable performance so as to overcome the defects in the prior art.

Description

High heat dissipation LED light source
Technical Field
The invention relates to the technical field of LED light sources, in particular to a high-heat-dissipation LED light source.
Background
At present, the luminous point of automobile-used LED head-light among the prior art generally is located the head of light source, the radiating seat generally is located the afterbody of LED lamp, and for ensureing that LED lamps and lanterns match the automobile-used assembly of tradition, obtain better light type effect, the light source of LED lamp generally is close to the head setting in the light source, and simultaneously, in order to avoid the light source to generate heat and lead to the inside high temperature of LED lamp and influence its normal operating, generally through the heat conduction post with the heat that the light source produced from the head transmission to the afterbody of LED lamp, the rethread radiating seat gives off to the LED lamp.
However, the original light source of the LED lamp is generally designed by a halogen lamp, and the halogen lamp emits light by heating a filament, so that the light is concentrated. In order to approach the design effect of halogen lamps, more and more designs make the heat-conducting columns used for transferring heat in the LED lamps thinner and thinner, even without the heat-conducting columns, so that the heat inside the LED lamps cannot be effectively dissipated.
Disclosure of Invention
The invention aims to provide a high-heat-dissipation LED light source which is beneficial to improving the heat dissipation effect on the premise of ensuring the light-emitting effect, has a simple structure and reliable performance and overcomes the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the high-heat-dissipation LED light source comprises a heat dissipation seat, an LED light source, a condenser and a fluorescent glue layer which are sequentially arranged, wherein the fluorescent glue layer is a mixture of silica gel and fluorescent powder;
the condenser includes integrated into one piece's portion of gathering together and constriction, it is close to gather together the portion LED light source sets up, the constriction is close to the fluorescence glue layer sets up, gather together the portion be used for with the incident light that the LED light source sent turns into the parallel light, the constriction is used for the adjustment the facula of parallel light, just the length of gathering together the portion is 3 ~ 15mm, the length of constriction is 10 ~ 40 mm.
Preferably, the contraction part comprises an incident end and an emergent end, the incident end is close to the gathering part, the emergent end is close to the fluorescent glue layer, and the cross-sectional width of the contraction part is gradually reduced from the incident end to the emergent end.
Preferably, the cross-sectional width of the light-incoming end is 10-35 mm, and the cross-sectional width of the light-outgoing end is 2-6 mm.
Preferably, the condenser is of a hollow structure, the gathering part is of a reflecting cup structure, and the length of the reflecting cup structure is 5-15 mm;
the bottom of the reflecting cup structure is provided with a light outlet, and the LED lamp source protrudes out of the light outlet and is detachably connected with the reflecting cup structure; the width of the cross section of the reflection cup structure is gradually increased from the bottom of the reflection cup structure to the rim of the reflection cup structure.
Preferably, the cup wall of the reflective cup structure is a reflective plane or a reflective curved surface protruding outwards.
Preferably, the condenser is of a solid structure, the gathering part is a solid lens body, the length of the solid lens body is 3-12 mm, and the LED light source is located at the front end of the solid lens body.
Preferably, the LED light source is a blue LED chip.
Preferably, the color temperature of the fluorescent glue layer is 2000-8000K.
Preferably, the thickness of the fluorescent glue layer along the light emergent direction is 3-8 mm.
Preferably, the maximum cross-sectional width of the fluorescent glue layer is 2-6 mm.
The invention has the beneficial effects that:
1. according to the technical scheme, through the design of the condenser, light emitted by the LED light source is effectively transmitted to the fluorescent glue layer to be excited and then emitted for 360 degrees, so that the light emitting effect of the high-heat-dissipation LED light source designed by the technical scheme is the same as that of the halogen lamp filament; and benefit from the effective transmission of spotlight ware to light, this technical scheme's LED light source can be close to the radiating seat setting to make the heat that the LED light source produced more easily LED away and give off by the radiating seat, be favorable to promoting the radiating effect of LED light source.
2. Light rays emitted by the LED light source in the technical scheme are gathered for the second time through the condenser and then are gathered to the fluorescent glue layer for excitation, the design of the condenser is favorable for avoiding loss of light energy, and effective transmission of the light rays is realized, so that the light-emitting effect of the condenser is equivalent to that of a halogen lamp filament.
Drawings
The drawings are further illustrative of the invention and the content of the drawings does not constitute any limitation of the invention.
FIG. 1 is a cross-sectional view of one embodiment of the high heat dissipation LED light source of the present invention.
Fig. 2 is a light path diagram of a partial structure in fig. 2.
Fig. 3 is a cross-sectional view of one embodiment of the high heat dissipation LED light source of the present invention.
Fig. 4 is a light path diagram of the partial structure of fig. 3.
Fig. 5 is a light path diagram of the partial structure of fig. 3.
Fig. 6 is a cross-sectional view of one embodiment of the high heat dissipation LED light source of the present invention.
Fig. 7 is a cross-sectional view of one embodiment of the high heat dissipation LED light source of the present invention.
Fig. 8 is a light path diagram of the partial structure of fig. 7.
Fig. 9 is a cross-sectional view of one embodiment of the high heat dissipation LED light source of the present invention.
Fig. 10 is a light path diagram of the partial structure of fig. 9.
FIG. 11 is a cross-sectional view of one embodiment of the high heat dissipation LED light source of the present invention.
Wherein: the LED lamp comprises a heat radiation seat 1, an LED light source 2, a condenser 3, a fluorescent glue layer 4, a gathering part 31, a contraction part 32, a light inlet end 321 and a light outlet end 322.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The high-heat-dissipation LED light source comprises a heat dissipation seat 1, an LED light source 2, a condenser 3 and a fluorescent glue layer 4 which are sequentially arranged, wherein the fluorescent glue layer 4 is a mixture of silica gel and fluorescent powder;
spotlight ware 3 includes integrated into one piece's portion 31 and constriction portion 32 of gathering together, it is close to gather together portion 31 LED light source 2 sets up, constriction portion 32 is close to fluorescent glue layer 4 sets up, gather together portion 31 be used for with the incident light that LED light source 2 sent turns into the parallel light, constriction portion 32 is used for the adjustment the facula of parallel light, just gather together the length of portion 31 and be 3 ~ 15mm, the length of constriction portion 32 is 10 ~ 40 mm.
At present, the light emitting point of the LED lamp in the prior art is generally located at the head of the light source, the heat sink is generally located at the tail of the LED lamp, and in order to ensure that the LED lamp has a large light emitting amount and a long irradiation distance, the light source of the LED lamp is generally located near the head of the light source, and meanwhile, in order to avoid the heat generated by the light source, the internal temperature of the LED lamp is too high, which affects the normal operation of the LED lamp, the heat generated by the light source is generally transferred from the head to the tail of the LED lamp through the heat conducting column, and then is dissipated to the outside of. However, more and more designs make the heat-conducting post for transferring heat in the LED lamp thinner and thinner, even without the heat-conducting post, so that the heat inside the LED lamp cannot be effectively dissipated.
In order to solve the above problems, the present technical solution provides a high heat dissipation LED light source, including heat dissipation base 1, LED light source 2, condenser 3 and fluorescent glue layer 4 installed in sequence, the prior art is to set up the LED light source close to the light emitting point of the LED lamp head portion, and to transmit the heat generated by the LED light source to the heat dissipation base close to the LED lamp tail portion for emission, and this technical solution is to set up LED light source 2 close to heat dissipation base 1, and to transmit the light emitted by LED light source 2 to fluorescent glue layer 4 effectively through condenser 3 and excite the back 360 ° to emit white light. Compared with the prior art, the technical scheme has the advantages that through the design of the condenser 3, light emitted by the LED light source 2 is effectively transmitted to the fluorescent glue layer 4 to be excited and then emits white light at 360 degrees, so that the light emitting effect of the high-heat-dissipation LED light source designed by the technical scheme is equivalent to that of a halogen lamp filament; and benefit from the effective transmission of spotlight ware 3 to light, this technical scheme's LED light source 2 can be close to the setting of radiating seat 1 to make the heat that LED light source 2 produced more easily LED away and give off by radiating seat 1, be favorable to promoting the radiating effect of LED light source.
Specifically, spotlight ware 3 among this technical scheme includes integrated into one piece's portion 31 and constriction 32 of gathering together, and gather together portion 31 and be close to the setting of LED light source 2, constriction 32 is close to the setting of fluorescence glue film 4, it is used for turning into the parallel light with the incident light that LED light source 2 sent to gather together portion 31, constriction 32 is used for adjusting the facula of parallel light, the light that LED light source 2 sent is gathered together the back through spotlight ware 3's secondary and is gathered to fluorescence glue film 4 and arouse, spotlight ware 3's design is favorable to avoiding the loss of light energy, the effective transmission of light has been realized, thereby ensure that its luminous effect is equivalent with the luminous effect with the halogen lamp filament.
More specifically, the length of the gathering portion 31 (as shown in a in fig. 1) in the present technical solution is set to be 3-15 mm, and the length of the contraction portion 32 (as shown in b in fig. 1) is set to be 10-40 mm, which is beneficial to further ensure the effective transmission of light.
More specifically, the contraction portion 32 includes a light entrance end 321 and a light exit end 322, the light entrance end 321 is disposed near the gathering portion 31, the light exit end 322 is disposed near the fluorescent glue layer 4, and a cross-sectional width of the contraction portion 32 gradually decreases from the light entrance end 321 to the light exit end 322.
In an embodiment of this technical scheme, the contraction part 32 includes an incident end 321 and an emergent end 322, the incident end 321 is close to the gathering part 31, the emergent end 322 is close to the fluorescent glue layer 4, and the cross-sectional width of the contraction part 32 gradually decreases from the incident end 321 to the emergent end 322, which is favorable to the high heat dissipation LED light source of this technical scheme to adjust a suitable irradiation spot through the contraction part 32.
Furthermore, the cross-sectional width of the light-entering end 321 is 10 to 35mm, and the cross-sectional width of the light-exiting end 322 is 2 to 6 mm.
In an embodiment of the present disclosure, a cross-sectional width of the light-entering end 321 (as shown by d1 in fig. 3) is 10 to 35mm, and a cross-sectional width of the light-exiting end 322 (as shown by d2 in fig. 3) is 2 to 6mm, which is beneficial to further ensure that the illumination spot is effectively adjusted.
Further, the condenser 3 is a hollow structure, the gathering part 31 is a reflective cup structure, and the length of the reflective cup structure is 5-15 mm;
a light outlet is formed in the bottom of the reflecting cup structure, and the LED lamp source 2 protrudes out of the light outlet and is detachably connected with the reflecting cup structure;
the width of the cross section of the reflection cup structure is gradually increased from the bottom of the reflection cup structure to the rim of the reflection cup structure.
As shown in fig. 1-5, the condenser 3 is a hollow structure, and the gathering portion 31 is a reflective cup structure, the length of which is 5-15 mm; the bottom of the reflecting cup structure is provided with a light outlet, and the LED lamp source 2 protrudes out of the light outlet and is detachably connected with the reflecting cup structure; the width of the cross section of the reflection cup structure is gradually increased from the bottom of the reflection cup structure to the rim of the reflection cup structure. In an embodiment of the present technical solution, the condenser 3 gathers the light emitted by the LED light source 2 by using the principle of optical reflection, and has a simple structure and reliable performance, thereby being beneficial to avoiding the loss of light energy and realizing the effective transmission of light, thereby ensuring that the light emitting effect is equivalent to that of a halogen lamp filament.
Furthermore, the cup wall of the reflective cup structure is a reflective plane or a reflective curved surface protruding outwards.
More specifically, the gathering portion 31 is a solid lens body, the length of the solid lens body is 3-6 mm, and the LED light source 2 is located at the front end of the solid lens body.
As shown in fig. 6-10, the condenser 3 is a solid structure, the gathering portion 31 is a solid lens body, the length of the solid lens body is 3-12 mm, and the LED light source is located at the front end of the solid lens body. In another embodiment of the present technical solution, the gathering part 31 gathers the light emitted by the LED light source 2 by using the optical transmission principle, and has a reasonable structure and stable performance, which is beneficial to avoiding the loss of light energy, and realizes the effective transmission of light, thereby ensuring that the light emitting effect is equivalent to that of a halogen lamp filament.
Preferably, the solid lens in the present technical solution refers to a lens that can converge the incident light beam emitted by the LED light source 2 and convert the incident light beam into a parallel light beam, and may specifically be a solid convex lens, a solid glass body, and the like, but is not limited thereto.
Further, the LED light source 2 is a blue LED chip.
Furthermore, the color temperature of the fluorescent glue layer 4 is 2000-8000K.
Further, the thickness of the fluorescent adhesive layer 4 along the light emitting direction is 3-8 mm.
In an embodiment of the present technical solution, the thickness of the fluorescent adhesive layer 4 along the light emitting direction (as shown by x in fig. 3) is 3-8 mm, which is beneficial to ensure that the light emitted by the LED light source 2 can be effectively excited.
Furthermore, the maximum cross-sectional width of the fluorescent glue layer 4 is 2-6 mm.
In an embodiment of the present technical solution, a maximum cross-sectional width (as shown by y in fig. 6 and 11) of the fluorescent adhesive layer 4 is 2-6 mm, which is beneficial to ensure that light emitted by the LED light source 2 can be effectively excited.
Preferably, the cross-sectional shape of the phosphor layer 4 in the present embodiment may be a cylinder, a trapezoid, or the like, but is not limited thereto.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. High heat dissipation LED light source, its characterized in that: the LED lamp comprises a heat dissipation seat, an LED light source, a condenser and a fluorescent glue layer which are sequentially arranged, wherein the fluorescent glue layer is a mixture of silica gel and fluorescent powder;
the condenser includes integrated into one piece's portion of gathering together and constriction, it is close to gather together the portion LED light source sets up, the constriction is close to the fluorescence glue layer sets up, gather together the portion be used for with the incident light that the LED light source sent turns into the parallel light, the constriction is used for the adjustment the facula of parallel light, just the length of gathering together the portion is 3 ~ 15mm, the length of constriction is 10 ~ 40 mm.
2. The high heat dissipation LED light source of claim 1, wherein: the contraction part comprises an incident end and an emergent end, the incident end is close to the gathering part, the emergent end is close to the fluorescent glue layer, and the cross-sectional width of the contraction part is gradually reduced from the incident end to the emergent end.
3. The high heat dissipation LED light source of claim 2, wherein: the cross-sectional width of the light-incoming end is 10-35 mm, and the cross-sectional width of the light-outgoing end is 2-6 mm.
4. The high heat dissipation LED light source of claim 2, wherein: the condenser is of a hollow structure, the gathering part is of a reflecting cup structure, and the length of the reflecting cup structure is 5-15 mm;
the bottom of the reflecting cup structure is provided with a light outlet, and the LED lamp source protrudes out of the light outlet and is detachably connected with the reflecting cup structure; the width of the cross section of the reflection cup structure is gradually increased from the bottom of the reflection cup structure to the rim of the reflection cup structure.
5. The high heat dissipation LED light source of claim 4, wherein: the cup wall of the reflective cup structure is a reflective plane or a reflective curved surface protruding outwards.
6. The high heat dissipation LED light source of claim 2, wherein: the condenser is of a solid structure, the gathering portion is a solid lens body, the length of the solid lens body is 3-12 mm, and the LED light source is located at the front end of the solid lens body.
7. The high heat dissipation LED light source of claim 1, wherein: the LED light source is a blue LED chip.
8. The high heat dissipation LED light source of claim 7, wherein: the color temperature of the fluorescent glue layer is 2000-8000K.
9. The high heat dissipation LED light source of claim 7, wherein: the thickness of fluorescence glue film along the light-emitting direction is 3 ~ 8 mm.
10. The high heat dissipation LED light source of claim 7, wherein: the maximum cross-sectional width of the fluorescent adhesive layer is 2-6 mm.
CN202011358425.1A 2020-11-27 2020-11-27 High heat dissipation LED light source Pending CN112524566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011358425.1A CN112524566A (en) 2020-11-27 2020-11-27 High heat dissipation LED light source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011358425.1A CN112524566A (en) 2020-11-27 2020-11-27 High heat dissipation LED light source

Publications (1)

Publication Number Publication Date
CN112524566A true CN112524566A (en) 2021-03-19

Family

ID=74994191

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011358425.1A Pending CN112524566A (en) 2020-11-27 2020-11-27 High heat dissipation LED light source

Country Status (1)

Country Link
CN (1) CN112524566A (en)

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