CN201688367U - Radiator for high-power LED lamp - Google Patents
Radiator for high-power LED lamp Download PDFInfo
- Publication number
- CN201688367U CN201688367U CN2010201912416U CN201020191241U CN201688367U CN 201688367 U CN201688367 U CN 201688367U CN 2010201912416 U CN2010201912416 U CN 2010201912416U CN 201020191241 U CN201020191241 U CN 201020191241U CN 201688367 U CN201688367 U CN 201688367U
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- heat radiation
- lamp body
- heat
- body groove
- power led
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Abstract
The utility model discloses a radiator for a high-power LED lamp, which comprises a lamp body groove, a radiating block, a heat pipe and a radiating upper cover, wherein the radiating upper cover is covered on the lamp body groove, and the lamp body groove is formed; an opening is arranged on the lower surface of the lamp body groove, the radiating block is arranged at the opening on the inner surface of the lamp body groove, and the opening is sealed; the heat pipe is arranged in the lamp body groove, and part of the heat pipe is inserted into the radiating block; and heat-conducting liquid is injected in a cavity formed between the lamp body groove and the radiating upper cover. The radiator utilizes the heating convection of the heat-conducting liquid, in particular heat-conducting oil, and the property that the specific heat of the heat-conducting liquid is far greater than that of aluminum for directly transferring the temperature of a light-emitting chip module into the heat-conducting liquid, and further utilizes liquid convection for soaking heat to a housing of a lamp body for heat radiation, thereby having good heat radiation effect.
Description
Technical field
The utility model relates to a kind of heat radiation device for large power LED lamp.
Background technology
Light emitting diode is applied to lighting field, has advantages such as energy-conserving and environment-protective.But temperature is very big for the influence in service life of light emitting diode.LED light temperature that table 1 is announced for U.S. Edison Co. and lamp life-span influence graph of a relation.
The junction temperature T of table 1 white light LEDs is when brightness decay 70% and life relation
From table, be not difficult to find out that after the LED lamp was heated, its life-span sharply shortened.Simultaneously, temperature also can influence the service efficiency of LED lamp, and the relation of temperature and efficient sees Table 2.
The relation of table 2LED light temperature and relative light emission rate
Publication number be US7674012B1 U.S. Patent Publication a kind of used for large power LED lamp, it is to be delivered to rapidly on the radiator casing by the heat of heat pipe with LED illuminator chip, and chip is dispelled the heat.This structure is than the good heat dissipation effect of existing other LED lamp radiator structures, but also there is weak point: after 1, heat is passed to radiator casing, the secondary transmission effect of heat is bad, and is than higher, and low away from the temperature at heat pipe place along the temperature of the radiator of heat pipe periphery; 2, by many heat pipes, heat is fully scattered, cause the radiator structure complexity again, the lamp body cell body is long-pending big, the processing cost height.
The utility model content
The utility model purpose: the purpose of this utility model is at the deficiencies in the prior art, and a kind of heat radiation device for large power LED lamp of good heat dissipation effect is provided.
Technical scheme: a kind of heat radiation device for large power LED lamp described in the utility model, comprise lamp body groove, radiating block, heat pipe and heat radiation loam cake, described heat radiation loam cake covers on described lamp body groove, and fit in the side of heat radiation loam cake and the side of lamp body groove; The lower surface of described lamp body groove is provided with opening, and described radiating block is arranged on described lamp body groove inner surface opening part, and opening is sealed; Described heat pipe is arranged in the lamp body groove, and part is inserted in the described radiating block; Be injected with heat-conducting liquid in the cavity that described lamp body groove and described heat radiation loam cake form.Light emitting chip module is arranged on described lamp body groove outer surface opening part, fits with described radiating block.
In order further to accelerate the diffusion velocity of temperature in heat-conducting liquid, on described heat pipe, also be connected with heat radiation aluminium wing, strengthened the radiating surface in the heat-conducting liquid.
Higher in order to prevent the high-power LED light temperature, cause heat-conducting liquid to expand and cause danger, described lamp body groove and described heat radiation loam cake are by 45 degree glue sealings.45 degree glue be higher than 45 can deliquescing when spending, have certain elasticity, when hot liquid expanded, container and dissipating cover carried out the piston motion when the conductive fluid thermal expansion.
Higher in order to prevent the high-power LED light temperature, cause heat-conducting liquid to expand and cause danger, can also be provided with pouring orifice by described heat radiation loam cake, pouring orifice is provided with check valve.
In order to enlarge area of dissipation, the outer surface of described heat radiation loam cake is provided with fin.
In order further to enlarge area of dissipation, the inner surface of described heat radiation loam cake is provided with down fin.
Described heat-conducting liquid is preferably conduction oil; Can lateral flow for the ease of the liquid in the adjacent groove that falls fin, described fall fin transversely be provided with fracture.
Beneficial effect: the utility model compared with prior art, its beneficial effect is: 1, the utility model utilizes heat-conducting liquid, especially conduction oil is subjected to thermal convection current, its specific heat is much larger than the characteristic of the specific heat of aluminium, be directly delivered in the heat-conducting liquid by the temperature of heat pipe light emitting chip module, utilize liquid convection, the shell that heat is soaked to lamp body dispels the heat, good heat dissipation effect; 2, the utility model has increased area of dissipation greatly by connect the aluminium wing on heat pipe, has improved heat-transfer effect; 3, lamp body groove of the present utility model is tightly connected by 45 degree glue by container and dissipating cover two parts, after heated liquid expands, and 45 degree gum softenings, container and dissipating cover can be done relative displacement, prevent danger; Another kind of scheme is provided with pouring orifice for the lamp body groove, makes things convenient for the injection of heat-conducting liquid, is provided with check valve by pouring orifice simultaneously, prevents that the heated liquid expansion from causing danger; 4, by inside and outside surface fin is set, strengthens area of dissipation, further improve radiating effect at lamp body groove shell; 5, LED lamp good heat dissipation effect of the present utility model, after testing, the module chip surface is no more than 10 ℃ with the temperature difference of conductive fluid, and the temperature difference of conductive fluid and lamp body groove outer surface is no more than 15 ℃; 6, the utility model product structure is simple, volume is little, in light weight, save heat sink material than general nature heat radiation, save processing cost, excellent in heat dissipation effect.
Description of drawings
Fig. 1 is the disassembly and assembly structure schematic diagram of the high-powered LED lamp of use the utility model product;
Fig. 2 is the utility model radiating block, heat pipe, aluminium wing connection diagram;
Fig. 3 is the overall structure schematic diagram of the high-powered LED lamp of use the utility model product.
The specific embodiment
Below in conjunction with accompanying drawing, by a most preferred embodiment, technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.
As shown in Figure 1, 2, 3, a kind of heat radiation device for large power LED lamp comprises lamp body groove 1, radiating block 2, heat pipe 3 and heat radiation loam cake 4, and described heat radiation loam cake 4 covers on described lamp body groove 1, fit in the side of heat radiation loam cake 4 and the side of described lamp body groove 1, by 45 degree glue sealings; Described heat radiation loam cake 4 is provided with pouring orifice, and pouring orifice is provided with check valve; The lower surface of described lamp body groove 1 is provided with opening, and described radiating block 2 is arranged on described lamp body groove 1 inner surface opening part, and opening is sealed; Described heat pipe 3 is arranged in the lamp body groove, and part is inserted in the described radiating block 2; Be injected with conduction oil in the cavity that described lamp body groove 1 and described heat radiation loam cake 4 form; Also be connected with heat radiation aluminium wing 5 on the described heat pipe 3.
The outer surface of described heat radiation loam cake 4 is provided with fin 6, and the inner surface of described heat radiation loam cake 4 is provided with down fin 7, described fall fin 7 transversely be provided with fracture.
Light emitting chip module is arranged on described lamp body groove 1 outer surface opening part, fits with described radiating block 2; The light emitting chip module below is provided with reflection shield 8, and the below of reflection shield 8 is a lampshade 9.
Claims (8)
1. a heat radiation device for large power LED lamp comprises lamp body groove (1), radiating block (2), heat pipe (3) and heat radiation loam cake (4), and described heat radiation loam cake (4) covers on described lamp body groove (1); The lower surface of described lamp body groove (1) is provided with opening, and described radiating block (2) is arranged on described lamp body groove (1) inner surface opening part, and opening is sealed; Described heat pipe (3) is arranged on lamp body groove inside, and part is inserted in the described radiating block (2); It is characterized in that: be injected with heat-conducting liquid in the cavity that described lamp body groove (1) and described heat radiation loam cake (4) form.
2. heat radiation device for large power LED lamp according to claim 1 is characterized in that: also be connected with heat radiation aluminium wing (5) on the described heat pipe (3).
3. heat radiation device for large power LED lamp according to claim 2 is characterized in that: described lamp body groove (1) seals by 45 degree glue with described heat radiation loam cake (4).
4. heat radiation device for large power LED lamp according to claim 2 is characterized in that: described heat radiation loam cake (4) is provided with pouring orifice, and pouring orifice is provided with check valve.
5. according to the described heat radiation device for large power LED lamp of arbitrary claim in the claim 1～4, it is characterized in that: the outer surface of described heat radiation loam cake (4) is provided with fin (6).
6. according to the described heat radiation device for large power LED lamp of arbitrary claim in the claim 1～4, it is characterized in that: the inner surface of described heat radiation loam cake (4) is provided with down fin (7).
7. according to the described heat radiation device for large power LED lamp of arbitrary claim in the claim 1～4, it is characterized in that: described heat-conducting liquid is a conduction oil.
8. heat radiation device for large power LED lamp according to claim 6 is characterized in that: described fall fin (7) transversely be provided with fracture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201912416U CN201688367U (en) | 2010-05-14 | 2010-05-14 | Radiator for high-power LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201912416U CN201688367U (en) | 2010-05-14 | 2010-05-14 | Radiator for high-power LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201688367U true CN201688367U (en) | 2010-12-29 |
Family
ID=43376647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201912416U Expired - Fee Related CN201688367U (en) | 2010-05-14 | 2010-05-14 | Radiator for high-power LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201688367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805708A (en) * | 2014-12-31 | 2016-07-27 | 罗周连 | Special heat conducting device for practical ultrahigh-power LED illuminating system |
-
2010
- 2010-05-14 CN CN2010201912416U patent/CN201688367U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805708A (en) * | 2014-12-31 | 2016-07-27 | 罗周连 | Special heat conducting device for practical ultrahigh-power LED illuminating system |
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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: 20101229 Termination date: 20140514 |