CN208535945U - A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect - Google Patents
A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect Download PDFInfo
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- CN208535945U CN208535945U CN201821125353.4U CN201821125353U CN208535945U CN 208535945 U CN208535945 U CN 208535945U CN 201821125353 U CN201821125353 U CN 201821125353U CN 208535945 U CN208535945 U CN 208535945U
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- China
- Prior art keywords
- heat pipe
- lampshade
- pulsating heat
- interfacial effect
- electronic cooler
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model discloses a kind of pulsating heat pipe lighting electronic cooler based on interfacial effect, including LED chip, flat plate radiation element based on interfacial effect, pulsating heat pipe, lampshade, the crown top of burner, sun shower radiator, it is embedded in lampshade unit with grooves in outer wall after LED chip and the flat plate radiation element split based on interfacial effect, lampshade inner wall is inlaid with pulsating heat pipe, the crown top of burner is set with outside the lampshade of split, the antarafacial end of pulsating heat pipe is embedded in the groove of heronsbill radiator, the lower end surface of heronsbill radiator is fixedly installed fan, heronsbill radiator, fan housing is equipped with cooler cover.The utility model quickly radiates to LED chip by the pulsating heat pipe lighting electronic cooler based on interfacial effect, it overcomes the prior art to be difficult to the amount of heat that LED is generated when closed narrow lampshade inner space works quickly taking away this technical problem, has many advantages, such as that radiating efficiency is high, LED illumination junction temperature is low, uniform temperature is good.
Description
Technical field
The utility model belongs to lighting electronic field and heat conduction reinforced technical field, is related to a kind of arteries and veins based on interfacial effect
Dynamic heat pipe lighting electronic cooler.
Background technique
As the consciousness of global environmental protection comes back, energy saving has become current trend.Semiconductor lighting has become China
Strategic emerging industries, LED wisdom illuminate a large amount of, successful application in road, landscape.LED is used as lighting source of new generation,
Since low-carbon environment-friendly, green energy conservation, service life long advantage have attracted much attention.
It is developed so far, LED product has had that energy conservation, power saving, high efficiency, the reaction time is fast, life cycle is long, has environmental protection
The advantages that benefit, however usually high-capacity LED product input power is about that 15% can be converted into light, remaining 85% electric energy is converted
For thermal energy.High-capacity LED illumination is when closed narrow lampshade inner space works, if LED generated thermal energy nothing when shining
Method export, it will keep LED junction face temperature excessively high, and then influences product life cycle, luminous efficiency, stability, and LED junction face temperature
Degree, luminous efficiency and the relationship between the service life.Therefore, how heat to be quickly quickly efficiently transferred to outside from chip interior
Important bottleneck problem as the development of the technology of restriction.
Utility model content
The purpose of the utility model is to provide a kind of pulsating heat pipe lighting electronic cooler based on interfacial effect, can be fast
The heat that LED chip generates quickly is transferred to outside by speed, solves the heat dissipation bottleneck problem of existing LED illumination product.
The technical solution adopted in the utility model is as follows:
A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that including LED chip, be based on
Flat plate radiation element, pulsating heat pipe, lampshade, the crown top of burner, the sun shower radiator of interfacial effect；The lampshade is by two identical lampshades
Structure is put together, and is embedded in lampshade unit with grooves in outer wall after LED chip and the flat plate radiation element split based on interfacial effect, lamp
Cover inner wall is inlaid with pulsating heat pipe, is set with the crown top of burner outside the lampshade of split, the antarafacial end of pulsating heat pipe is embedded in heronsbill radiator
Upper recess in, the lower end surface of heronsbill radiator is fixedly installed fan, and heronsbill radiator, fan housing are equipped with cooling
Device cover.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that described to be based on interfacial effect
Flat plate radiation element be the cuboid for having cavity in closed, two long sides of cavity inner wall are respectively ultra-hydrophilic surface and super
Hydrophobic surface, and the length to height ratio range of flat plate radiation element internal cavities is 1:2-1:5, heat transfer medium is liquid water, liquid filled ratio
For 20-30%.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the LED chip be based on
The inner wall of the flat plate radiation element of interfacial effect is the splicing of super hydrophilic side, and the groove that lampshade outer wall is equipped with is placed in after combination
Interior, groove is for protecting LED chip.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the pulsating heat pipe is inlayed
A plane is formed in the groove of lampshade inner wall, flat plate radiation element is placed in the plane after combining with LED chip.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the pulsating heat pipe is by more
The copper pipe of the tiny internal diameter of root long forms, and the length and outer diameter ratio of copper pipe are 5:1-20:1, and filling heat-conductive is situated between in each copper pipe cavity
Matter, and copper pipe both ends seal.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the bottom end of the lampshade has
There is radiating fin, convenient for its heat dissipation.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the heronsbill radiator
Material be aluminium, heronsbill radiator is made of heat conductive rod and fin, and fin is centered on cylindrical heat conductive rod to two sides exhibition
It opens, the inner cavity of heat conductive rod is not filled with any medium.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the material of the cooler cover
Matter is aluminum or plastics, for protecting heronsbill radiator and fan.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the lampshade knot of the two sides
Structure connects and composes lampshade using welding, glue connection or screw phase split, pulsating heat pipe respectively with lampshade, heronsbill radiator phase
Integrally combine, is used for rapid cooling.
The pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that the lampshade inner wall is reserved
There is cable hole.
The working principle of the utility model is:
When LED chip work, moment generates amount of heat, and position is concentrated, and heat first can be quickly through being based on
The flat plate radiation element of interfacial effect, heat dissipation element meeting automatic tracing heat centrostigma, passes through and constantly continuously boils, condenses
Phase transition process is completed to absorb, release heat process, since the heat transfer mode inside heat dissipation element is phase transformation to spreading
Heat, heat transfer system significantly improve, and heat flow density at least improves 2 orders of magnitude compared with single-phase convection heat-transfer, transfer heat to rapidly
On lampshade and pulsating heat pipe.Heat passes through free convection, heat transfer to air in heat transfer to radiating fin on lampshade
In；Heat on pulsating heat pipe, first heat-conducting medium, which absorb heat, this partial heat and to be generated bubble and expands and boost rapidly, and promotion is led
Thermal medium flows to low-temperature radiator end, has arrived the radiating end bubble cooling meat of low temperature and has ruptured, pressure decline, due to both ends it
Between there are pressure imbalances existing between pressure difference and adjacent pipe so that heat-conducting medium shakes between evaporation ends and condensation end
Flowing is swung, to realize the transmitting of heat, then radiator is by the effect of fin and fan by heat rapid evacuation.
The beneficial effects of the utility model are as follows:
The utility model quickly carries out LED chip by the pulsating heat pipe lighting electronic cooler based on interfacial effect scattered
Heat overcomes the prior art and is difficult to the amount of heat fast speed belt for generating LED when closed narrow lampshade inner space works
Walk this technical problem.The utility model has many advantages, such as that radiating efficiency is high, LED illumination junction temperature is low, and uniform temperature is good, especially
It radiates suitable for high-power LED illuminating product.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion of the utility model.
Fig. 2 is the assembling schematic diagram of the utility model.
Fig. 3 is the heat transfer theory schematic diagram of the flat plate radiation element based on interfacial effect of the utility model.
Fig. 4 is the pulsating heat pipe structural schematic diagram of the utility model.
Fig. 5 is the heronsbill heat spreader structures schematic diagram of the utility model.
Specific embodiment
Referring to attached drawing, a kind of pulsating heat pipe lighting electronic cooler based on interfacial effect, including lampshade 1, pulsating heat pipe
2,1 inner wall of lampshade is inlaid with pulsating heat pipe 2 respectively, is set with the crown top of burner 3 outside the lampshade 1 of split, the antarafacial end 6 of pulsating heat pipe 2 is inlayed
In the upper recess 10 of heronsbill radiator 4, the lower end surface of heronsbill radiator 4 is fixedly installed fan 5, heronsbill radiator
4,5 outer cover of fan is equipped with cooler cover 7；The outer wall of lampshade 1 is equipped with groove 11, flat plate radiation element 8 based on interfacial effect with
LED chip 9 is placed in groove 11 after combining, and for groove 11 for protecting LED chip 9,1 inner wall of lampshade is reserved with cable hole.
LED chip 9 is bonded on the flat plate radiation element 8 with interfacial effect by sticky heat-conducting silicone grease, has interface
The interior side of the flat plate radiation element 8 of effect is ultra-hydrophilic surface 8-(1), the other side is super hydrophobic surface 8-(2), heat transfer is situated between
Matter water absorbs heat in the side ultra-hydrophilic surface 8-(1) first, and boiling phase transformation occurs and generates vapor, in cooler internal cavities 8-
(3) in transmitting reach super hydrophobic surface 8-(2) side, occur condensation phase transformation, due to super hydrophobic surface 8-(2) surface energy very
It is small, and it is capable of forming pearl condensation, quick release heat, the heat transfer efficiency 2-4 order of magnitude higher than single-phase convection heat-transfer, and
Under the action of interfacial effect, condensing droplet occurs to merge induction spring, returns to ultra-hydrophilic surface 8-(1), it can make in adsorption
Under, sprawls film forming and continue to absorb heat.Also, since boiling and condensation phase-change heat transfer occur in narrow cavity, mainly
It is driven by density contrast and interfacial tension, heat can only be transferred to super hydrophobic surface from ultra-hydrophilic surface, not by position and gravity
It influences.
Pulsating heat pipe 2 is made of the copper pipe of the tiny internal diameter of multiple length, filling heat-conductive medium in each copper pipe cavity, and copper pipe
Both ends sealing.
The bottom end of lampshade 1 has radiating fin 12, and convenient for its heat dissipation, the material of heronsbill radiator 4 is aluminium, and heronsbill dissipates
Hot device 4 is made of heat conductive rod 13 and fin 14, and fin 14 is unfolded centered on cylindrical heat conductive rod 13 to two sides, heat conductive rod 13
Inner cavity be not filled with any medium, the material of cooler cover 7 is aluminum or plastics, for protecting heronsbill radiator 4 and fan
5。
Pulsating heat pipe 2 is embedded in one plane of formation, flat plate radiation element 8 and LED chip in the groove 11 of 1 outer wall of lampshade
It is placed in the plane after 9 combinations.
The lampshade 1 of two sides is dissipated with lampshade 1, heronsbill respectively using welding, glue connection or threaded connection, pulsating heat pipe 2
Hot device 4 combines one, is used for rapid cooling.
When LED light work when heat first can quickly through the flat plate radiation element based on interfacial effect,
Heat dissipation element meeting automatic tracing heat centrostigma, passes through and constantly continuously boils, condenses phase transition process, completes to absorb, discharge
Heat process, since the heat transfer mode inside heat dissipation element is phase transformation convective heat transfer, heat transfer system is significantly improved, hot-fluid
Density at least improves 2 orders of magnitude compared with single-phase convection heat-transfer, transfers heat on lampshade and pulsating heat pipe rapidly.Then it transmits
Onto lampshade and pulsating heat pipe, in heat transfer to pulsating heat pipe, pulsating heat pipe absorbs heat and generates bubble, rapidly expansion and liter
Pressure pushes working medium to flow to cryogenic condensation end.There, it bubble cooling meat and ruptures, pressure decline, since there are pressure differences between both ends
And existing pressure imbalance between adjacent pipe, so that heat-conducting medium Oscillation Flows between evaporation ends and condensation end, from
And being transmitted to heat on heronsbill radiator, last fan quickly take away heat, the junction temperature rapid decrease of LED.
Claims (10)
1. a kind of pulsating heat pipe lighting electronic cooler based on interfacial effect, which is characterized in that including LED chip, be based on boundary
Flat plate radiation element, pulsating heat pipe, lampshade, the crown top of burner, the sun shower radiator of face effect；The lampshade is by two identical lampshade knots
Structure is put together, and is embedded in lampshade unit with grooves in outer wall after LED chip and the flat plate radiation element split based on interfacial effect, lampshade
Inner wall is inlaid with pulsating heat pipe, is set with the crown top of burner outside the lampshade of split, the antarafacial end of pulsating heat pipe is embedded in heronsbill radiator
In upper recess, the lower end surface of heronsbill radiator is fixedly installed fan, and heronsbill radiator, fan housing are equipped with cooler
Cover.
2. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that the base
It is the cuboid for having cavity in closed in the flat plate radiation element of interfacial effect, two long sides of cavity inner wall are respectively super close
Water surface and super hydrophobic surface, and the length to height ratio range of flat plate radiation element internal cavities is 1:2-1:5, heat transfer medium is liquid
Water, liquid filled ratio 20-30%.
3. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 2, which is characterized in that described
The inner wall of LED chip and the flat plate radiation element based on interfacial effect is the splicing of super hydrophilic side, is placed in outside lampshade after combination
In the groove that wall is equipped with, groove is for protecting LED chip.
4. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that the arteries and veins
Dynamic heat pipe is embedded in one plane of formation, flat plate radiation element in the groove of lampshade inner wall and is placed in this after combining with LED chip
In plane.
5. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that the arteries and veins
Dynamic heat pipe is made of the copper pipe of the tiny internal diameter of more root longs, and the length and outer diameter ratio of copper pipe are 5:1-20:1, in each copper pipe cavity
Filling heat-conductive medium, and copper pipe both ends seal.
6. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that the lamp
The bottom end of cover has radiating fin.
7. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that it is described too
The material of sun flower radiator is aluminium, and heronsbill radiator is made of heat conductive rod and fin, during fin with cylindrical heat conductive rod is
The heart is unfolded to two sides, and the inner cavity of heat conductive rod is not filled with any medium.
8. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that described cold
But the material of device cover is aluminum or plastics, for protecting heronsbill radiator and fan.
9. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that described two
The lampshade structure of side connects and composes lampshade using welding, glue connection or screw phase split, pulsating heat pipe respectively with lampshade, the sun
Flower radiator combines one.
10. the pulsating heat pipe lighting electronic cooler based on interfacial effect according to claim 1, which is characterized in that described
Lampshade inner wall is reserved with cable hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821125353.4U CN208535945U (en) | 2018-07-17 | 2018-07-17 | A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821125353.4U CN208535945U (en) | 2018-07-17 | 2018-07-17 | A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208535945U true CN208535945U (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821125353.4U Expired - Fee Related CN208535945U (en) | 2018-07-17 | 2018-07-17 | A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect |
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| CN (1) | CN208535945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626705A (en) * | 2018-07-17 | 2018-10-09 | 安徽建筑大学 | A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect |
-
2018
- 2018-07-17 CN CN201821125353.4U patent/CN208535945U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626705A (en) * | 2018-07-17 | 2018-10-09 | 安徽建筑大学 | A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20200717 |