CN107084377A - A kind of air-cooled LED heat abstractors - Google Patents
A kind of air-cooled LED heat abstractors Download PDFInfo
- Publication number
- CN107084377A CN107084377A CN201710262812.7A CN201710262812A CN107084377A CN 107084377 A CN107084377 A CN 107084377A CN 201710262812 A CN201710262812 A CN 201710262812A CN 107084377 A CN107084377 A CN 107084377A
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- China
- Prior art keywords
- post shape
- fins
- shape fin
- fin group
- air
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The present invention relates to a kind of air-cooled LED heat abstractors, including substrate and polylith rectangular fins, all rectangular fins are arranged on substrate, it is characterised in that：Also include multiple post shape fin groups, post shape fin group is made up of multiple post shape fins, all post shape fins in same post shape fin group are parallel each other, all rectangular fins and post shape fin group are vertically fixed on the surface of substrate.The mixing of rectangular fins and post shape fin helps piece, and air receives a certain degree of disturbance when flowing through and helping piece, and this disturbance enhances the effect of heat exchange.The Temperature Distribution that it can also make LED chip simultaneously is unlikely to make chip internal produce excessive thermal stress and influence the service life of chip than more uniform.
Description
Technical field
It is more particularly, to a kind of air-cooled heat abstractor, i.e., a kind of air-cooled the present invention relates to a kind of LED heat abstractors
LED heat abstractors.
Background technology
Light emitting diode（Abbreviation LED）With small volume, light weight, environment friendly and pollution-free, power consumption is few, the response time is short,
The features such as service life is long.Compared with conventional light source, with the having attracted every country in the world actively research and development, quilt of its performance protruded
The referred to as third time revolution of lighting field.But, with the continuous improvement of power, its heat dissipation problem is also increasingly protruded, radiating
The further development that problem is constrained.
The air-cooled most important part of heat abstractor is fin, in the heat transfer for producing pyrotoxin to surrounding air
In play a bridge beam action, fin absorbs heat first, then transfers heat away from, leads to surrounding air heat exchange again
It is topmost approach to cross fin radiating.Different radiating sheet forms has a great impact to radiating, including to air flow
Influence, the influence of thermal resistance etc..Current most study is rectangular radiator and the nail major class of column radiator two.Rectangular
Fin is a kind of very common fin, is common in the radiating of various electronic devices, the characteristics of its is maximum is exactly can be narrow
Larger surface area and very simple processing conditions is obtained in narrow space.But smooth rectangular fins have " comb stream "
Effect, cause fluid to flow out air layer between fin quickly, be unfavorable for heat exchange.Post shape fin is compared with rectangular fin
With bigger surface area and bigger connection ratio, with better performance, post enhances the disturbance of fluid, imitates radiating
Fruit strengthens.But flow disturbance is more violent, fluid resistance loss is also bigger, and rate of flow of fluid reduces a lot, is also unfavorable for heat exchange.
Chinese patent 201610011830.3 discloses a kind of LED anti-explosion lamp, including is cooled down positioned at micro slot group composite phase change
The power source cavity and light-source chamber of radiator both sides, in light-source chamber, between micro slot group composite phase change cooling spreader surface and light source
LED/light source is installed extension disk is installed, radiator side is surrounded by multiple radiated ribs being vertically arranged, radiated rib it
Between have gap.Program radiating efficiency is not high, and flow resistance is higher, it is impossible to solve the above problems very well.
The content of the invention
Can strengthen air agitation there is provided one kind instant invention overcomes drawbacks described above has large surface area again, still
Air flow resistance loss is not again very big air-cooled LED heat abstractors.
The present invention the used technical scheme that solves the above problems is：A kind of air-cooled LED heat abstractors, including substrate and
Polylith rectangular fins, all rectangular fins are arranged on substrate, it is characterised in that：Also include multiple post shape fin groups, post
Shape fin group is made up of multiple post shape fins, and all post shape fins in same post shape fin group are put down each other
OK, all rectangular fins and post shape fin group are vertically fixed on the surface of substrate.Rectangular fins and post shape fin are and base
The main-vision surface angle in 90 ° of plate, it is rectilinear to be fixed on substrate.
It is parallel to each other between all rectangular fins of the present invention and post shape fin group, rectangular fins and post shape fin group are handed over
Pitch and only have a post shape fin group, two posts of arbitrary neighborhood between arranged, the two panels rectangular fins of arbitrary neighborhood
Alternate constant between shape fin group only between one piece of rectangular fins, and adjacent rectangular fins and post shape fin group.
All post shape fins are in approximately the same plane in the same post shape fin group of the present invention.
Constant gap between adjacent two panels post shape fin in the same post shape fin group of the present invention.
The beneficial effects of the invention are as follows：Although there is certain reduction on area of dissipation, not because area of dissipation
Reduction and weaken radiating effect, opposite, due to being that the mixing of rectangular fins and post shape fin helps piece, air is flowing through
A certain degree of disturbance is received when helping piece, this disturbance enhances the effect of heat exchange.It can also make the temperature of LED chip simultaneously
Distribution is unlikely to make chip internal produce excessive thermal stress and influence the service life of chip than more uniform.
Brief description of the drawings
Fig. 1 is the main structure diagram in the embodiment of the present invention.
Fig. 2 is the present invention looks up structural representation in the embodiment of the present invention.
Fig. 3 is rectangular fins and post shape fin position relationship schematic diagram in the embodiment of the present invention.
In figure：1- substrates, 2- rectangular fins, 3- post shape fins, 4- post shape fin groups.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Embodiment.
Referring to Fig. 1-3, the present embodiment is a kind of air-cooled LED heat abstractors, including substrate 1 and polylith rectangular fins 2, institute
There are rectangular fins 2 to install on substrate 1, it is characterised in that：Also include multiple post shape fin groups 4, post shape fin group 4 is by more
Individual post shape fin 3 is constituted, and all post shape fins 3 in same post shape fin group 4 are parallel each other, all rectangles
Fin 2 and post shape fin group 4 are vertically fixed on the surface of substrate 1.Rectangular fins 2 and post shape 3 master with substrate 1 of fin
Depending on face angle in 90 °, rectilinear fixation is on substrate 1.
Preferably, be parallel to each other in the present embodiment between all rectangular fins 2 and post shape fin group 4, rectangular fins 2
Arranged with the cross arrangement of post shape fin group 4, an only post shape fin group 4 between the two panels rectangular fins 2 of arbitrary neighborhood,
Only has one piece of rectangular fins 2 between two post shape fin groups 4 of arbitrary neighborhood.
Preferably, the alternate constant between adjacent rectangular fins 2 and post shape fin group 4, the spacing is S.
Preferably, all post shape fins 3 are in approximately the same plane in same post shape fin group 4.
Preferably, spacing is permanent between two panels post shape fin 3 adjacent in the same post shape fin group 4 of the present embodiment
Fixed, the spacing is d.
Although the air-cooled LED heat abstractors of the present embodiment have certain reduction on area of dissipation, not because
The reduction of area of dissipation and weaken radiating effect, it is opposite, due to being that the mixing of rectangular fins 2 and post shape fin 3 helps piece,
Air receives a certain degree of disturbance when flowing through and helping piece, and this disturbance enhances the effect of heat exchange.It can also make LED simultaneously
The Temperature Distribution of chip is unlikely to make chip internal produce excessive thermal stress and influence the service life of chip than more uniform.
The structure design is effectively overcome to the prejudice on routine techniques, possesses greatly creative.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Title etc. can be different, and the above content described in this specification is only to structure example explanation of the present invention.It is all according to
The equivalence changes or simple change done according to the construction described in inventional idea of the present invention, feature and principle, are included in this hair
In the protection domain of bright patent.Those skilled in the art can do various to described specific embodiment
The modification of various kinds or supplement or using similar mode substitute, without departing from the present invention structure or surmount present claims
Scope defined in book, all should belong to protection scope of the present invention.
Claims (4)
1. a kind of air-cooled LED heat abstractors, including substrate and polylith rectangular fins, all rectangular fins are arranged on substrate,
It is characterized in that：Also include multiple post shape fin groups, post shape fin group is made up of multiple post shape fins, same post
All post shape fins in shape fin group are parallel each other, and all rectangular fins and post shape fin group are vertically fixed on base
The surface of plate.
2. air-cooled LED heat abstractors according to claim 1, it is characterised in that：All rectangular fins and post shape rib
Be parallel to each other between piece group, rectangular fins and post shape fin group cross arrangement arrangement, the two panels rectangular fins of arbitrary neighborhood it
Between an only post shape fin group, only one piece of rectangular fins, and adjacent between two post shape fin groups of arbitrary neighborhood
Rectangular fins and post shape fin group between alternate constant.
3. air-cooled LED heat abstractors according to claim 1 or 2, it is characterised in that：In same post shape fin group
All post shape fins are in approximately the same plane.
4. air-cooled LED heat abstractors according to claim 1 or 2, it is characterised in that：In same post shape fin group
Constant gap between adjacent two panels post shape fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262812.7A CN107084377A (en) | 2017-04-20 | 2017-04-20 | A kind of air-cooled LED heat abstractors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262812.7A CN107084377A (en) | 2017-04-20 | 2017-04-20 | A kind of air-cooled LED heat abstractors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107084377A true CN107084377A (en) | 2017-08-22 |
Family
ID=59612069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710262812.7A Pending CN107084377A (en) | 2017-04-20 | 2017-04-20 | A kind of air-cooled LED heat abstractors |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2336457Y (en) * | 1998-05-06 | 1999-09-01 | 英业达股份有限公司 | Air guide type heat sink |
| JP2001345585A (en) * | 2000-06-01 | 2001-12-14 | Hitachi Kokusai Electric Inc | Heat-radiating fin |
| CN2596552Y (en) * | 2002-12-27 | 2003-12-31 | 鸿富锦精密工业（深圳）有限公司 | Heat exchanger |
| CN1553502A (en) * | 2003-05-27 | 2004-12-08 | 建亨精密股份有限公司 | Radiating fin structure |
| US20090145581A1 (en) * | 2007-12-11 | 2009-06-11 | Paul Hoffman | Non-linear fin heat sink |
| CN206861485U (en) * | 2017-04-20 | 2018-01-09 | 杭州华电能源工程有限公司 | Air-cooled LED heat abstractors |
-
2017
- 2017-04-20 CN CN201710262812.7A patent/CN107084377A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2336457Y (en) * | 1998-05-06 | 1999-09-01 | 英业达股份有限公司 | Air guide type heat sink |
| JP2001345585A (en) * | 2000-06-01 | 2001-12-14 | Hitachi Kokusai Electric Inc | Heat-radiating fin |
| CN2596552Y (en) * | 2002-12-27 | 2003-12-31 | 鸿富锦精密工业（深圳）有限公司 | Heat exchanger |
| CN1553502A (en) * | 2003-05-27 | 2004-12-08 | 建亨精密股份有限公司 | Radiating fin structure |
| US20090145581A1 (en) * | 2007-12-11 | 2009-06-11 | Paul Hoffman | Non-linear fin heat sink |
| CN206861485U (en) * | 2017-04-20 | 2018-01-09 | 杭州华电能源工程有限公司 | Air-cooled LED heat abstractors |
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