CN109373205A - A kind of high efficiency LED light source radiator structure - Google Patents

A kind of high efficiency LED light source radiator structure Download PDF

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Publication number
CN109373205A
CN109373205A CN201811058414.4A CN201811058414A CN109373205A CN 109373205 A CN109373205 A CN 109373205A CN 201811058414 A CN201811058414 A CN 201811058414A CN 109373205 A CN109373205 A CN 109373205A
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CN
China
Prior art keywords
light source
led light
radiator
circuit board
high efficiency
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.)
Granted
Application number
CN201811058414.4A
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Chinese (zh)
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CN109373205B (en
Inventor
袁志强
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.)
Tiantai Tianyu Au Optronics Co
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Tiantai Tianyu Au Optronics Co
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Priority to CN201811058414.4A priority Critical patent/CN109373205B/en
Publication of CN109373205A publication Critical patent/CN109373205A/en
Application granted granted Critical
Publication of CN109373205B publication Critical patent/CN109373205B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/502Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/60Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The invention discloses a kind of high efficiency LED light source radiator structures, it is intended to solve the bad deficiency of LED light source cooling effect.The invention includes LED light source, circuit board, radiator, and LED light source is installed on circuit boards, and high-heat-conductivity glue is connected between circuit board and radiator, and LED light source edge is equipped with thermal vias on circuit board.LED light source is installed on circuit boards, and the high-heat-conductivity glue between circuit board and radiator plays good conduction of heat, will carry out rapid cooling in the heat transfer to radiator of LED light source work generation, while the setting of thermal vias advantageously forms heat loss through convection.The good heat dissipation effect of this high efficiency LED light source radiator structure.

Description

A kind of high efficiency LED light source radiator structure
Technical field
The present invention relates to a kind of LED heat dissipation technologys, more specifically, it relates to a kind of high efficiency LED light source radiator structure.
Background technique
Its heat dissipation effect directly affects luminous intensity and service life in LED use process, especially for powerful LED radiates more important.Traditional radiating mode is that directly LED patch is welded on heat-radiating substrate at present, but this mode Heat dissipation effect is bad.
Summary of the invention
The present invention overcomes the bad deficiencies of LED light source cooling effect, provide a kind of high efficiency LED light source radiator structure, Its good heat dissipation effect.
In order to solve the above-mentioned technical problem, the invention adopts the following technical scheme: a kind of high efficiency LED light source radiator structure, Including LED light source, circuit board, radiator, LED light source is installed on circuit boards, and high thermal conductivity is connected between circuit board and radiator Glue, LED light source edge is equipped with thermal vias on circuit board.
LED light source is installed on circuit boards, and the high-heat-conductivity glue between circuit board and radiator plays good heat transfer Effect will carry out rapid cooling in the heat transfer to radiator of LED light source work generation, while the setting of thermal vias is advantageous In formation heat loss through convection.The good heat dissipation effect of this high efficiency LED light source radiator structure.
Preferably, circuit board is one of hard circuit board or flexible circuit board.Circuit board uses hard circuit board Or flexible circuit board, meet different requirements.Imitative lumen LED light source then uses left-hand thread mode, anti-from hard circuit board bottom Button patch weldering, is directly arranged high thermal conductivity cloth, high-heat-conductivity glue and radiator in imitative lumen LED light source bottom.
Preferably, being equipped with high thermal conductivity cloth in high-heat-conductivity glue.High thermal conductivity cloth further increases thermal conduction effect.
Preferably, radiator includes upper radiator, lower radiator, bottom plate, upper radiator includes upper junction plate, Ruo Ganshang Cooling fin, upper cooling fin are arranged on upper junction plate lower surface, and high-heat-conductivity glue is connected on upper junction plate upper surface, upper junction plate Lower surface is equipped with several guide rods and several positioning tubes;Lower radiator includes lower connecting plate, several lower cooling fins, and lower cooling fin is set It sets on lower connecting plate lower surface, corresponds with guide rod on lower connecting plate and be equipped with several guide holes, on lower connecting plate and positioning tube It corresponding and is equipped with several mandrils, guide rod is actively plugged in guide hole and lower end is connect with bottom plate, retaining spring is set on guide rod, Retaining spring is arranged between bottom plate and lower cooling fin, and deformable bladder is installed in positioning tube, and mandril is mounted in positioning tube, deforms Air bag is connected between positioning tube bottom and mandril;Opposite sides edge is equipped with two thermally conductive clamping plates, upper connection on lower connecting plate Activity is clamped between two thermally conductive clamping plates and realizes heat transfer the upper cooling fin of two sides respectively on plate, and upper cooling fin lower end is fitted in down On connecting plate upper surface.
Radiator is formed by upper radiator, lower radiator, floor combination, split type structure, upper radiator and lower radiator Between be inserted into guide hole by the fitting and guide rod of upper cooling fin and thermally conductive clamping plate and realize heat transfer.Make under high temperature environment Used time, upper heat dissipation temperature is higher, and when gases are heated, they expand in deformable bladder at this time pushes down on mandril, thus under making entirely Radiator moves down, and the gap between upper radiator and lower radiator increases, and is conducive to the circulation of air, improves heat dissipation effect Fruit.After the decline of upper radiator temperature, deformable bladder restores to the original state, under retaining spring effect, lower radiator return.It is this The radiator of structure setting can be according to the position of radiator under the height adjust automatically of temperature, when temperature is higher, lower radiator It moves down, the gap in increase between radiator and lower radiator, accelerates the circulation of air, improve heat dissipation effect.
Preferably, being equipped with the stamp needle for poking deformable bladder close to opening end position in positioning tube, needle is stabbed under Up it is obliquely installed towards mandril.
When upper heat dissipation temperature is excessively high, the deformation quantity of deformable bladder reaches capacity position and abuts on stamp needle, stamp needle stamp Deformable bladder is broken, the gas in deformable bladder blows out outward, blows between radiator and lower radiator, accelerate the stream of gas It is logical, be conducive to improve radiating rate, prevent superheating phenomenon and damage LED device.
Preferably, guide rod and positioning tube are arranged on cooling fin, upper junction plate edge two on cooling fin both ends Position is respectively provided with a guide rod;Four positioning tubes are respectively provided on other upper cooling fins.This structure is provided with conducive to lower cooling fin Steady movement.
Preferably, lower surface of base plate is equipped with one layer of soldering-tin layer.The setting of soldering-tin layer, can be by LED light source and radiator Element as a whole is welded on other circuit boards by soldering-tin layer, is used and is processed and is more flexible changeable.
Preferably, lower surface of base plate and guide rod corresponding position are equipped with mounting groove, installation groove bottom is equipped with positioning jack, Lower end of the guide rod is equipped with locking head, and locking head diameter is less than guide rod diameter, and locking head adaptation is inserted into positioning jack, lower end of the guide rod It is connected on plate upper surface, locking nut is threadedly coupled on locking head, clamping screw is arranged in mounting groove.Lower end of the guide rod with Bottom plate is easy installation and reliable.
Compared with prior art, the beneficial effects of the present invention are: the good heat dissipation effect of (1) LED light source radiator structure;(2) Radiator can be according to the position of radiator under the height adjust automatically of temperature, when temperature is higher, and lower radiator moves down, and increases In addition the gap between radiator and lower radiator, deformable bladder is poked in setting, blows out the gas in deformable bladder, is accelerated empty The circulation of gas improves heat dissipation effect.
Detailed description of the invention
Fig. 1 is a schematic structural view of Embodiment 1 of the present invention;
Fig. 2 is a schematic structural view of Embodiment 2 of the present invention;
Fig. 3 is the structural schematic diagram of radiator of the invention;
Fig. 4 is radiator structure schematic diagram on radiator of the invention;
Fig. 5 is the structural schematic diagram of radiator under radiator of the invention;
In figure: 1, LED light source, 2, circuit board, 3, high-heat-conductivity glue, 4, high thermal conductivity cloth, 5, upper radiator, 6, lower radiator, 7, bottom Plate, 8, upper junction plate, 9, upper cooling fin, 10, guide rod, 11, positioning tube, 12, lower connecting plate, 13, lower cooling fin, 14, guide hole, 15, mandril, 16, retaining spring, 17, deformable bladder, 18, thermally conductive clamping plate, 19, stamp needle, 20, soldering-tin layer, 21, mounting groove, 22, fixed Position jack, 23, locking head, 24, locking nut.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention is further described:
Embodiment 1: a kind of high efficiency LED light source radiator structure (referring to attached drawing 1, attached drawing 3, attached drawing 4, attached drawing 5), including LED light source 1, circuit board 2, radiator, LED light source are installed on circuit boards, and high-heat-conductivity glue 3, circuit board are connected between circuit board and radiator Upper LED light source edge is equipped with thermal vias.Circuit board is hard circuit board.High thermal conductivity cloth 4 is installed in high-heat-conductivity glue.Hard electricity Road plate is equipped with via hole, and imitative lumen LED light source then uses left-hand thread mode, passes through the patch weldering of via hole left-hand thread from hard circuit board bottom, In imitative lumen LED light source bottom, high thermal conductivity cloth, high-heat-conductivity glue and radiator are directly set.
Radiator includes upper radiator 5, lower radiator 6, bottom plate 7, and upper radiator includes upper junction plate 8, several upper heat dissipations Piece 9, upper cooling fin are arranged in parallel on upper junction plate lower surface, and high-heat-conductivity glue is connected on upper junction plate upper surface, upper connection Plate lower surface is equipped with several guide rods 10 and several positioning tubes 11;Lower radiator includes lower connecting plate 12, several lower cooling fins 13, Lower cooling fin is arranged in parallel on lower connecting plate lower surface, is corresponded with guide rod on lower connecting plate and is equipped with several guide holes 14, under It corresponding with positioning tube on connecting plate and is equipped with several mandrils 15, guide rod is actively plugged in guide hole and lower end is connect with bottom plate, Retaining spring 16 is set on guide rod, retaining spring is arranged between bottom plate and lower cooling fin, deformable bladder 17 is installed in positioning tube, Mandril is mounted in positioning tube, and deformable bladder is connected between positioning tube bottom and mandril;Opposite sides edge on lower connecting plate Two thermally conductive clamping plates 18 are equipped with, activity is clamped in realization heat between two thermally conductive clamping plates to the upper cooling fin of two sides respectively on upper junction plate Conduction, upper cooling fin lower end is fitted on lower connecting plate upper surface.It is equipped with close to opening end position for poking in positioning tube The stamp needle 19 of deformable bladder, stamp needle are obliquely installed towards mandril from lower to upper.Guide rod and positioning tube are arranged on cooling fin, Cooling fin end positions are respectively provided with a guide rod on the two of upper junction plate edge;Four positioning tubes are respectively provided on other upper cooling fins. Lower surface of base plate is equipped with one layer of soldering-tin layer 20.Lower surface of base plate and guide rod corresponding position are equipped with mounting groove 21, mounting groove bottom Face is equipped with positioning jack 22, and lower end of the guide rod is equipped with locking head 23, and locking head diameter is less than guide rod diameter, and locking head adaptation is inserted into In positioning jack, lower end of the guide rod is connected on plate upper surface, and locking nut 24, clamping screw setting are threadedly coupled on locking head In mounting groove.
LED light source is installed on circuit boards, and the high-heat-conductivity glue between circuit board and radiator plays good heat transfer Effect will carry out rapid cooling in the heat transfer to radiator of LED light source work generation, while the setting of thermal vias is advantageous In formation heat loss through convection.Radiator is formed by upper radiator, lower radiator, floor combination, split type structure, and upper radiator is under Fitting and guide rod between radiator by upper cooling fin and thermally conductive clamping plate, which are inserted into guide hole, realizes heat transfer.In high temperature ring In use, upper heat dissipation temperature is higher under border, when gases are heated, they expand in deformable bladder at this time pushes down on mandril, to make Entirely lower radiator moves down, and the gap between upper radiator and lower radiator increases, and is conducive to the circulation of air, improves and dissipates Thermal effect.After the decline of upper radiator temperature, deformable bladder restores to the original state, under retaining spring effect, lower radiator return. The radiator of this structure setting can be lower to dissipate according to the position of radiator under the height adjust automatically of temperature, when temperature is higher Hot body moves down, the gap in increase between radiator and lower radiator, accelerates the circulation of air, improves heat dissipation effect.When Upper heat dissipation temperature is excessively high, and the deformation quantity of deformable bladder reaches capacity position and abuts on stamp needle, and stamp needle pokes deformable bladder, Gas in deformable bladder is blown out outward, is blowed between radiator and lower radiator, and the circulation of gas is accelerated, and is conducive to mention High radiating rate, prevents superheating phenomenon and damages LED device.
Embodiment 2: a kind of high efficiency LED light source radiator structure (referring to attached drawing 2), structure is similar to Example 1, mainly not It is flexible circuit board with putting in circuit board in this present embodiment, is fitted without high thermal conductivity cloth in high-heat-conductivity glue.Other structures and reality It is identical to apply example 1.
Embodiment described above is two kinds of preferable schemes of the invention, is not made in any form to the present invention Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.

Claims (8)

1. a kind of high efficiency LED light source radiator structure, characterized in that including LED light source, circuit board, radiator, LED light source installation On circuit boards, high-heat-conductivity glue is connected between circuit board and radiator, LED light source edge is equipped with thermal vias on circuit board.
2. a kind of high efficiency LED light source radiator structure according to claim 1, characterized in that circuit board is hard circuit board Or one of flexible circuit board.
3. a kind of high efficiency LED light source radiator structure according to claim 1, characterized in that be equipped with height in high-heat-conductivity glue Thermally conductive cloth.
4. a kind of high efficiency LED light source radiator structure according to claim 1, characterized in that radiator include upper radiator, Lower radiator, bottom plate, upper radiator include upper junction plate, several upper cooling fins, and upper cooling fin is arranged in upper junction plate lower surface On, high-heat-conductivity glue is connected on upper junction plate upper surface, and upper junction plate lower surface is equipped with several guide rods and several positioning tubes;Under Radiator includes lower connecting plate, several lower cooling fins, and lower cooling fin is arranged on lower connecting plate lower surface, on lower connecting plate and is led Bar, which corresponds, is equipped with several guide holes, corresponds with positioning tube on lower connecting plate and is equipped with several mandrils, guide rod is actively plugged in In guide hole and lower end is connect with bottom plate, and retaining spring is set on guide rod, and retaining spring is arranged between bottom plate and lower cooling fin, fixed Deformable bladder is installed in the cylinder of position, mandril is mounted in positioning tube, and deformable bladder is connected between positioning tube bottom and mandril;Lower company Opposite sides edge is equipped with two thermally conductive clamping plates on fishplate bar, and activity is clamped in two and leads the upper cooling fin of two sides respectively on upper junction plate Heat transfer is realized between hot clamping plate, upper cooling fin lower end is fitted on lower connecting plate upper surface.
5. a kind of high efficiency LED light source radiator structure according to claim 4, characterized in that close to open end in positioning tube Position is equipped with the stamp needle for poking deformable bladder, and stamp needle is obliquely installed towards mandril from lower to upper.
6. a kind of high efficiency LED light source radiator structure according to claim 4, characterized in that guide rod and positioning tube are respectively provided with On upper cooling fin, upper junction plate edge two on cooling fin end positions be respectively provided with a guide rod;It is all provided on other upper cooling fins Set four positioning tubes.
7. a kind of high efficiency LED light source radiator structure according to claim 4, characterized in that lower surface of base plate is equipped with one Layer soldering-tin layer.
8. a kind of high efficiency LED light source radiator structure according to claim 4 to 7 any one, characterized in that bottom plate following table Face and guide rod corresponding position are equipped with mounting groove, and installation groove bottom is equipped with positioning jack, and lower end of the guide rod is equipped with locking head, locking head Diameter is less than guide rod diameter, and locking head adaptation is inserted into positioning jack, and lower end of the guide rod is connected on plate upper surface, locking head Upper threaded connection locking nut, clamping screw are arranged in mounting groove.
CN201811058414.4A 2018-09-11 2018-09-11 High-efficient LED light source heat radiation structure Active CN109373205B (en)

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Application Number Priority Date Filing Date Title
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CN109373205A true CN109373205A (en) 2019-02-22
CN109373205B CN109373205B (en) 2020-05-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879815A (en) * 2020-10-26 2021-06-01 深圳爱克莱特科技股份有限公司 High heat conduction LED lamps and lanterns
US20230220972A1 (en) * 2020-05-14 2023-07-13 Lumileds Llc Dual function lighting device

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CN202266842U (en) * 2011-04-28 2012-06-06 都江堰市华刚电子科技有限公司 Light emitting diode (LED) illumination lamp with sealing structure
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CN208764897U (en) * 2018-09-11 2019-04-19 天台天宇光电股份有限公司 A kind of LED light source radiator structure

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Publication number Priority date Publication date Assignee Title
CN101520569A (en) * 2008-02-29 2009-09-02 南京汉德森科技股份有限公司 Power chip type LED light source for LCD backlight module
CN201688371U (en) * 2010-05-26 2010-12-29 奉碧芸 Heat emission structure of a luminous tube
CN202266842U (en) * 2011-04-28 2012-06-06 都江堰市华刚电子科技有限公司 Light emitting diode (LED) illumination lamp with sealing structure
CN102287644A (en) * 2011-07-28 2011-12-21 深圳市耐沃克科技有限公司 High-power light-emitting diode (LED) lamp with double radiating mechanisms of heat conduction and convectional radiating
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230220972A1 (en) * 2020-05-14 2023-07-13 Lumileds Llc Dual function lighting device
CN112879815A (en) * 2020-10-26 2021-06-01 深圳爱克莱特科技股份有限公司 High heat conduction LED lamps and lanterns
CN112879815B (en) * 2020-10-26 2023-01-31 深圳爱克莱特科技股份有限公司 High heat conduction LED lamps and lanterns

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