CN201502999U - Heat dissipation device for LED - Google Patents
Heat dissipation device for LED Download PDFInfo
- Publication number
- CN201502999U CN201502999U CN2009202317167U CN200920231716U CN201502999U CN 201502999 U CN201502999 U CN 201502999U CN 2009202317167 U CN2009202317167 U CN 2009202317167U CN 200920231716 U CN200920231716 U CN 200920231716U CN 201502999 U CN201502999 U CN 201502999U
- Authority
- CN
- China
- Prior art keywords
- led
- lamp holder
- substrate
- lamp cap
- magnesium substrate
- 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.)
- Expired - Fee Related
Links
- 230000017525 heat dissipation Effects 0.000 title abstract description 7
- 239000000758 substrate Substances 0.000 claims abstract description 31
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 26
- 239000011777 magnesium Substances 0.000 claims abstract description 26
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000004512 die casting Methods 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 5
- 229910000861 Mg alloy Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to a heat dissipation device for an LED. The heat dissipation device comprises a lamp cap base, and a magnesium substrate serving as a circuit board, wherein the magnesium substrate and the front end of the lamp cap base are formed integrally by die casting or primary cast molding; a plurality of LED lamps are arranged on the outer side surface of the magnesium substrate; a fan is arranged in a cavity of the lamp cap substrate; and air vents are formed on the front end, the rear end and/or the sidewalls of the lamp cap substrate. The heat generated by the LED lamps can be directly dissipated through the lamp cap base so as to obviate the heat conduction blockage due to excessive connections or nonconductive media, thereby ensuring the heat conduction effect. The fan arranged in the cavity of the lamp cap base can force air to convect so as to greatly improve the heat dissipation efficiency. The inner side of the magnesium substrate is integrated with the front end of the lamp cap substrate through thermally-conductive posts corresponding to the mounting position of each LED lamp by die casting or primary cast molding, so that a space communicated with the external air is formed between the inner side surface of the magnesium substrate and the front end of the lamp cap substrate, thereby further promoting air convection and heat dissipation.
Description
Technical field
The utility model relates to a kind of LED heat abstractor.
Background technology
The basic structure of LED is a semi-conductive P-N knot.When electric current flows through the LED element, the temperature of P-N knot will rise.The electric power of all input LED has only less than 20% to be converted into luminous energy, and remaining 80% is converted into heat energy.
LED has brightness height, low in energy consumption, characteristics such as the life-span is long, reliability is high, easy driving, energy-saving and environmental protection, but because there is the heating phenomenon in LED, along with the increase of working time and operating current, its luminous intensity and luminous flux can descend, and cause its life-span to be reduced.
The radiating mode of existing LED lamp adds the radiating fin of an aluminium alloy often in lampshade, radiating fin perhaps is set outside lampshade, and its shortcoming is: no matter radiating fin the lampshade the inside still outside, its heat conduction and radiating effect are all bad; For improving radiating effect, the volume of radiating fin is often bigger, and weight is heavier, causes its cost higher, is unfavorable at the general indoor LED of installing and using illuminating lamp.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, weight is lighter, the with low cost and LED heat abstractor that can economize on resources greatly.
For solving the problems of the technologies described above, the utility model provides a kind of LED heat abstractor, comprise: lamp holder pedestal and the magnesium substrate that is used for as wiring board, the leading section of magnesium substrate and lamp holder pedestal is cast into an one or a cast molding, be beneficial to direct heat conduction, on the lateral surface of magnesium substrate a plurality of LED lamps can be set according to need; Be provided with fan in the cavity of this lamp holder pedestal, have passage on the forward and backward two ends of lamp holder pedestal and/or the sidewall.Wherein, the heat energy that the LED lamp generates is directly through the heat radiation of lamp holder pedestal, avoids too much hindering the connection of medium or athermanous medium and hinders the heat conduction, guaranteed whole heat-conducting effect.Be provided with the convection current of fan forced air in the cavity of lamp holder pedestal, improved radiating efficiency greatly.
There is radiating fin on the side of described lamp holder pedestal, with further raising radiating efficiency.
The rear end of described lamp holder pedestal links to each other with lamp source iron covering through the insulation pad, has the advantage that insulation system is simple, volume is less.
Described radiating fin is the multi-layer annular fin that be arranged in parallel, and this structure is convenient to produce and casting, good heat dissipation effect.
The medial surface of described magnesium substrate is cast into an one or a cast molding through the leading section with corresponding heating column in the installation site of each LED lamp and lamp holder pedestal, thereby there is a space that communicates with extraneous air between the leading section of the medial surface that makes magnesium substrate and lamp holder pedestal, dispels the heat further to be beneficial to cross-ventilation; When adopting the die casting all-in-one-piece mode of production, each heating column on the magnesium substrate is an open tubular column, and is enclosed within on the corresponding column on the lamp holder pedestal respectively and is cast into one, and this structure is convenient to produce and casting.
The utlity model has positive effect:
(1) LED heat abstractor of the present utility model utilizes the characteristic of magnesium alloy heat radiation and heat conduction, adds integrated lamp holder, and LED directly is welded on the magnesium substrate, and the heat energy that LED is produced is directly delivered on whole magnesium substrate and the lamp holder pedestal, has guaranteed radiating effect.Wherein, directly from the thermal source conduction heat of LED lamp, avoided multi-link or athermanous dielectrically impeded heat conduction; Need not to adopt external fin device, directly with holder structure as heat abstractor, reduce the weight of materials and whole light fixture; Mini-fan device of the inner increase of holder structure can directly dispel the heat by Forced Air Convection; At middle the adopt insulation spacer of power supply lamp housing part, to avoid conduction with the Heat radiation lamp holder part.
(2) traditional heat-dissipating lamp holder and difference in functionality of the present utility model point: 1. the traditional heat-dissipating lamp holder is the combination of segmented, except the LED lampshade, also comprise LED lamp group, glass lamp shade, aluminium base or the pcb board, radiating fin, plastic feet and the lamp source iron covering that assemble.It just comes heat conduction and heat radiation by radiating fin, and has the more medium that has nothing to do with heat radiation between the parts, so heat conduction is not easy, radiating effect is bad; And radiator of the present utility model is direct integrated workpiece, and the heat conduction is without hindrance, has guaranteed heat conduction and radiating effect.2. the volume of the radiating fin of traditional heat-dissipating lamp holder is bigger, and causes the volume and weight of entire heat dissipation lamp holder all bigger, and not only influence outward appearance and also influence function, and the cost height.And the utility model is direct integrated workpiece, and the proportion of magnesium alloy materials is lighter, and radiating fin designs in the lamp holder base part, and again with the substrate of magnesium alloy as LED, so whole weight is lighter, volume is less and cost is lower.3. the traditional heat-dissipating lamp holder dispels the heat by the natural air convection current, and radiating efficiency is lower; And the utility model also adds a mini-fan in bulb socket, both can do free convection and also can do the pressure convection current, has improved radiating efficiency greatly, thereby ensures the service life of LED.
(3) do the basis of bulb socket with metal material, replace the insulating materials such as the plastics of general lamp holder, or pottery, or bakelite, produce and moulding more convenient, radiating effect is better.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
User mode reference diagram when Fig. 1 is applied on the LED illuminating lamp for the LED among the embodiment with heat abstractor;
Fig. 2 is the front view that the LED among the embodiment uses heat abstractor;
Fig. 3 is the A-A cross section view of Fig. 2;
Fig. 4 is the three-dimensional view of the magnesium substrate among the embodiment.
The specific embodiment
See Fig. 1-3, the LED of present embodiment comprises with heat abstractor: lamp holder pedestal 3 and the magnesium substrate 2 that is used for as wiring board, and magnesium substrate 2 is cast into an one or a cast molding with the leading section of lamp holder pedestal 3, and a plurality of LED lamps 1 are set on the lateral surface of magnesium substrate 2; Be provided with fan 4 in the cavity of this lamp holder pedestal 3, have passage 3-2 on the forward and backward two ends of lamp holder pedestal 3 and/or the sidewall.Wherein, copper foil circuit is plated in the coating magnesium substrate of plated with copper, can obtains magnesium substrate 2 as wiring board.
The side of described lamp holder pedestal 3 is provided with the radiating fin 3-1 of the multi-layer annular that be arranged in parallel.
The rear end of described lamp holder pedestal 3 links to each other with lamp source iron covering 6 through the insulation pad.
See Fig. 4, the medial surface of described magnesium substrate 2 is cast into an one or a cast molding through the leading section with corresponding heating column 2-1 in the installation site of each LED lamp 1 and lamp holder pedestal 3; When adopting the die casting all-in-one-piece mode of production, each the heating column 2-1 on the magnesium substrate 2 is an open tubular column, and the corresponding column 3-1 that is enclosed within respectively on the lamp holder pedestal 3 goes up and be cast into one.
The foregoing description only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.
Claims (5)
1. LED heat abstractor, it is characterized in that comprising: lamp holder pedestal (3) and be used for magnesium substrate (2) as wiring board, magnesium substrate (2) is cast into an one or a cast molding with the leading section of lamp holder pedestal (3), and the lateral surface of magnesium substrate (2) is provided with a plurality of LED lamps (1); Be provided with fan (4) in the cavity of this lamp holder pedestal (3), have passage (3-2) on the forward and backward two ends of lamp holder pedestal (3) and/or the sidewall.
2. LED heat abstractor according to claim 1 is characterized in that: have radiating fin (3-1) on the side of described lamp holder pedestal (3).
3. LED heat abstractor according to claim 2 is characterized in that: the rear end of described lamp holder pedestal (3) links to each other with lamp source iron covering (6) through the insulation pad.
4. LED heat abstractor according to claim 3 is characterized in that: the multi-layer annular fin of described radiating fin (3-1) for be arrangeding in parallel.
5. LED heat abstractor according to claim 1 is characterized in that: the medial surface of described magnesium substrate (2) is through being cast into an one or a cast molding with the corresponding heating column in installation site (2-1) of each LED lamp (1) and the leading section of lamp holder pedestal (3); When adopting the die casting all-in-one-piece mode of production, each heating column (2-1) on the magnesium substrate (2) is an open tubular column, and one is gone up and be cast into to the corresponding column (3-1) that is enclosed within respectively on the lamp holder pedestal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202317167U CN201502999U (en) | 2009-09-15 | 2009-09-15 | Heat dissipation device for LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202317167U CN201502999U (en) | 2009-09-15 | 2009-09-15 | Heat dissipation device for LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502999U true CN201502999U (en) | 2010-06-09 |
Family
ID=42453932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202317167U Expired - Fee Related CN201502999U (en) | 2009-09-15 | 2009-09-15 | Heat dissipation device for LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502999U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676290A (en) * | 2013-11-26 | 2015-06-03 | 苏州承源光电科技有限公司 | LED lamp having radiator |
| CN104676291A (en) * | 2013-11-26 | 2015-06-03 | 苏州承源光电科技有限公司 | Radiating LED lamp |
| WO2016070345A1 (en) * | 2014-11-05 | 2016-05-12 | 袁志贤 | Heat dissipation led lamp emitting light by means of cambered surface |
-
2009
- 2009-09-15 CN CN2009202317167U patent/CN201502999U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676290A (en) * | 2013-11-26 | 2015-06-03 | 苏州承源光电科技有限公司 | LED lamp having radiator |
| CN104676291A (en) * | 2013-11-26 | 2015-06-03 | 苏州承源光电科技有限公司 | Radiating LED lamp |
| WO2016070345A1 (en) * | 2014-11-05 | 2016-05-12 | 袁志贤 | Heat dissipation led lamp emitting light by means of cambered surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20120915 |