CN104235792A - A phase transition radiator for a high power LED lighting lamp - Google Patents
A phase transition radiator for a high power LED lighting lamp Download PDFInfo
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- CN104235792A CN104235792A CN201310222848.4A CN201310222848A CN104235792A CN 104235792 A CN104235792 A CN 104235792A CN 201310222848 A CN201310222848 A CN 201310222848A CN 104235792 A CN104235792 A CN 104235792A
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- led lighting
- power led
- phase
- evaporation coil
- evaporimeter
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Abstract
The invention provides a phase transition radiator for a high power LED lighting lamp. The radiator comprises an evaporator (1), evaporation coils (2), fins (3) and fixed baffle plates (4). The radiator is characterized in that, the evaporation coils (2) are made by multi-pass rotary bending of a whole continuous pipe. The phase transition radiator for a high power LED lighting lamp of the invention has good reliability, strong radiation capacity, and high radiation efficiency. Moreover, the radiator has light weight, low cost and easy manufacture.
Description
Technical field
The present invention relates to thermodynamics field, particularly relate to a kind of phase-change heat sink for high-power LED lighting fixture.
Background technology
Along with the progress of LED technology, LED illumination lamp is a kind of trend to high-power, integrated form, lightness development.But, the operating temperature of LED and the luminous efficiency of LED and have direct and conclusive effect service life, particularly high-power integrated LED lighting, caloric value is large, heat is concentrated, just make heat dissipation problem more outstanding, if heat can not be shifted away in time, the temperature accumulation produced can make LED junction temperature superelevation, directly have influence on light extraction efficiency and the service life of lighting, conventional radiating mode can not meet its cooling requirements completely, and the thermal control of high-power LED lighting fixture has become the bottleneck problem of its extensive popularization and application of restriction.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of phase-change heat sink for high-power LED lighting fixture.This phase-change heat sink good reliability, heat-sinking capability is strong, and radiating efficiency is high, and lightweight, and cost is low, makes easily.
The technical scheme that the present invention solves the problems of the technologies described above is: comprising: evaporimeter (1), evaporation coil (2), radiating fin (3) and fixed dam (4); Described evaporation coil (2) is made by whole piece continuous print tubing is bending through multiple tracks loop;
The cavity that described evaporimeter (1) is made up of heat-conducting plate and evaporator shell is formed, and the heat-conducting plate part in evaporimeter (1) cavity arranges groove liquid sucting core structure;
Described radiating fin (3) is little fin, and multi-disc is arranged evenly, is closely fixed on evaporation coil (2) through expand tube;
Described fixed dam (4) is arranged longitudinal perforate and the lateral opening of comparable size;
(1) sets out steam ports and liquid return hole with described evaporimeter, and venthole is connected with the admission mouth of pipe of evaporation coil (2), and liquid return hole is connected with the liquid back pipe mouth of evaporation coil (2);
According to the heat flow density of LED illumination lamp and the thermodynamic properties of heat-conducting work medium, radiator is vacuumized and pours into suitable heat-conducting work medium.
Technique effect of the present invention is: evaporation coil (2) is made by whole piece continuous print tubing is bending through multiple tracks loop, whole piece evaporation coil welding, can avoid because weld bond too much produces potential safety hazard, the safety coefficient of radiator is higher, and unfailing performance is stablized.
Be provided with groove liquid sucting core structure in evaporimeter (1) cavity, condensation working medium antigravity conveying capacity can be increased, maintain heat-conducting work medium and rationally circulate normally, adapt to orientation angles change when high-power LED lighting fixture is installed.
Radiating fin (3) is little fin, multi-disc is arranged evenly, closely be fixed on evaporation coil (2) through expand tube, its polygon effect can effectively increase unit volume area of dissipation, shorten boundary layer flow passage, strengthen air permeability, heat radiation flow field environment is improved, strengthen heat-sinking capability, improve radiating efficiency.
Fixed dam (4) is arranged longitudinal perforate and the lateral opening of comparable size, radiator rapid-assembling can be made shaping, enhance productivity, reduce production cost.
Evaporation coil (2) can carry out expansion with the demand of heat flow density and extend, and area of dissipation can arbitrarily change, and adapts to the demand of different capacity lighting to heat radiation.
Compared with prior art, it is good that the present invention also has processability, and compact conformation is lightweight, and cost is low, makes the features such as easy.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the elevational schematic view of phase-change heat sink of the present invention.
Fig. 2 is the sectional view of the evaporimeter on phase-change heat sink of the present invention.
Fig. 3 is the fixed dam figure on phase-change heat sink of the present invention.
Detailed description of the invention:
As shown in Figure 1, evaporation coil (2) is made by whole piece continuous print tubing is bending through multiple tracks loop; Radiating fin (3) is little fin, and multi-disc is arranged evenly, is closely fixed on evaporation coil (2) through expand tube.The admission mouth of pipe on venthole on evaporimeter (1) and evaporation coil (2) links together, and the liquid back pipe mouth on the air intake on evaporimeter (1) and evaporation coil (2) links together.
As shown in Figure 2, the cavity that evaporimeter (1) is made up of heat-conducting plate and evaporator shell is formed, and the heat-conducting plate part in evaporimeter cavity is provided with groove liquid sucting core structure.
As shown in Fig. 3 or Fig. 1, fixed dam (4) is provided with longitudinal perforate and the lateral opening of comparable size, be arranged on the bending termination of evaporation coil (2), parallel with radiating fin, for being connected and fixed of the Quick-forming of phase-change heat sink and phase-change heat sink and lamp outer casing.
Evaporimeter (1) is processed by aluminium alloy extrusions, and evaporation coil (2) is made up of pure aluminum tube, and radiating fin (3) is formed by flake aluminum punching press, and fixed dam (4) is by aluminium sheet punch forming.
Operation principle of the present invention: the present invention is used for the phase-change heat sink of high-power LED lighting fixture in use, for reducing thermal resistance, the heat-conducting plate heat-absorbent surface of evaporimeter (1) is coated with heat-conducting silicone grease, the heat-absorbent surface of LED chip and evaporimeter heat-conducting plate is combined closely, heat is by the conduction of evaporimeter (1), liquid working substance in evaporimeter (1) cavity is heated to undergo phase transition and is converted to gas, gas rises continuously along the evaporation coil (2) supported by fixed dam (4), saturated heat conduction density space is formed in evaporation coil, heat is quickly transferred on radiating fin (3), dispel the heat through radiating fin (3), gas working fluid condenses is converted to liquid, liquid working substance relies on Action of Gravity Field automatic back flow to the low side position of evaporimeter (1), then be combined by groove liquid-sucking core the capillary suction force effect produced with liquid working substance, overcome gravitational resistance, fill the groove liquid sucting core structure inhaled and infiltrate to evaporimeter (1), continue by thermal evaporation, form reciprocation cycle, realize Rational flow and the heat transfer process of heat-conducting work medium.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement, all should be included within protection scope of the present invention.
Claims (5)
1. for a phase-change heat sink for high-power LED lighting fixture, comprising: evaporimeter (1), evaporation coil (2), radiating fin (3) and fixed dam (4); It is characterized in that, described evaporation coil (2) is made by whole piece continuous print tubing is bending through multiple tracks loop.
2. a kind of phase-change heat sink for high-power LED lighting fixture according to claim 1, it is characterized in that, the cavity that described evaporimeter (1) is made up of heat-conducting plate and evaporator shell is formed, and the heat-conducting plate part in evaporimeter cavity is provided with groove liquid sucting core structure.
3. a kind of phase-change heat sink for high-power LED lighting fixture according to claim 1, it is characterized in that, described radiating fin (3) is little fin, and multi-disc is arranged evenly, is closely fixed on evaporation coil (2) through expand tube.
4. a kind of phase-change heat sink for high-power LED lighting fixture according to claim 1, is characterized in that, described fixed dam (4) is provided with longitudinal perforate and the lateral opening of comparable size.
5. a kind of phase-change heat sink for high-power LED lighting fixture according to claim 1, it is characterized in that, described evaporimeter (1) also comprises venthole and liquid return hole, venthole is connected with the admission mouth of pipe of evaporation coil (2), and liquid return hole is connected with the liquid back pipe mouth of evaporation coil (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222848.4A CN104235792A (en) | 2013-06-07 | 2013-06-07 | A phase transition radiator for a high power LED lighting lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222848.4A CN104235792A (en) | 2013-06-07 | 2013-06-07 | A phase transition radiator for a high power LED lighting lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235792A true CN104235792A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310222848.4A Pending CN104235792A (en) | 2013-06-07 | 2013-06-07 | A phase transition radiator for a high power LED lighting lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN104235792A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020080583A1 (en) * | 2000-12-22 | 2002-06-27 | Ravi Prasher | Integrated vapor chamber heat sink and spreader and an embedded direct heat pipe attachment |
| CN1885530A (en) * | 2005-06-24 | 2006-12-27 | 鸿富锦精密工业（深圳）有限公司 | Heat radiation module |
| CN201983671U (en) * | 2011-01-04 | 2011-09-21 | 陈庆山 | Heat pipe radiating device for thermoelectric refrigerating component |
| CN202726776U (en) * | 2012-07-06 | 2013-02-13 | 陈庆山 | Structure forming device for fin type heat pipe radiator |
| CN203421650U (en) * | 2013-06-07 | 2014-02-05 | 陈庆山 | Phase change heat sink used for high-power LED lighting lamp |
| CN103775995A (en) * | 2012-10-19 | 2014-05-07 | 陈庆山 | Heat pipe radiating device for high-power light-emitting diode (LED) lighting lamp |
-
2013
- 2013-06-07 CN CN201310222848.4A patent/CN104235792A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020080583A1 (en) * | 2000-12-22 | 2002-06-27 | Ravi Prasher | Integrated vapor chamber heat sink and spreader and an embedded direct heat pipe attachment |
| CN1885530A (en) * | 2005-06-24 | 2006-12-27 | 鸿富锦精密工业（深圳）有限公司 | Heat radiation module |
| CN201983671U (en) * | 2011-01-04 | 2011-09-21 | 陈庆山 | Heat pipe radiating device for thermoelectric refrigerating component |
| CN202726776U (en) * | 2012-07-06 | 2013-02-13 | 陈庆山 | Structure forming device for fin type heat pipe radiator |
| CN103775995A (en) * | 2012-10-19 | 2014-05-07 | 陈庆山 | Heat pipe radiating device for high-power light-emitting diode (LED) lighting lamp |
| CN203421650U (en) * | 2013-06-07 | 2014-02-05 | 陈庆山 | Phase change heat sink used for high-power LED lighting lamp |
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Application publication date: 20141224 |
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| WD01 | Invention patent application deemed withdrawn after publication |