CN104713047A - Heat-removing constant-temperature structure for high-power LED lamp - Google Patents
Heat-removing constant-temperature structure for high-power LED lamp Download PDFInfo
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- CN104713047A CN104713047A CN201510094969.4A CN201510094969A CN104713047A CN 104713047 A CN104713047 A CN 104713047A CN 201510094969 A CN201510094969 A CN 201510094969A CN 104713047 A CN104713047 A CN 104713047A
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- led lamp
- constant temperature
- working medium
- magnetic working
- internal heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
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Abstract
The invention discloses a heat-removing constant-temperature structure for a high-power LED lamp. The structure comprises a flat gas-liquid conversion hollow cavity, wherein LED lamp beads are installed on one side of the gas-liquid conversion hollow cavity, magnetic working media corresponding to the LED lamp beads are arranged on the other side of the gas-liquid conversion hollow cavity, and excitation devices are arranged corresponding to the magnetic working media. During actual working, if the high-power LED lamp is in the overheat working state, excitation demagnetization is conducted on the magnetic working media by means of the excitation devices so that heat removal and refrigeration can be achieved; if the high-power LED lamp is in the polar region or high-altitude ultra-cold working state, intermittent constant-temperature excitation is conducted on the magnetic working media by means of the excitation devices so that constant temperature can be realized.
Description
Technical field
The present invention relates to great power LED application, particularly relate to a kind of constant temperature structure that reduces phlegm and internal heat of high-powered LED lamp.
Background technology
LED key technology is in the application heat dissipation technology, and the quality of heat dissipation technology is directly directly proportional to life-span of LED lamp and power.In the world, existing LED heat dissipation technology still rests on Material selec-tion and cooling surface area expands two aspects.Entered the high speed development epoch in LED technology, its outstanding function makes its application more extensive, and extends to high-end field, such as spacecraft, aircraft, submersible, polar expedition, the key areas such as ocean attracting.
Above field all uses performance to have high requirement to LED, needs life-span and photochromic, that light leads to output stability.The requirement that prior art is used from high-end special dimension also differs greatly.As, when running into polar climate, severe temperature difference environment, the power of LED, light output and colour rendering can very easily change, and easily cause death, and make practice produce serious consequence.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of constant temperature structure that reduces phlegm and internal heat used for large power LED lamp with magnetic refrigeration isothermal working medium, can carry out reducing phlegm and internal heat and resist cold according to actual needs, meet various high-end utilization demand.
The present invention adopts following technical scheme.
A kind of constant temperature structure that reduces phlegm and internal heat of high-powered LED lamp, it is characterized in that, comprise: flat gas-liquid transforms hollow cavity, the one side transforming hollow cavity in gas-liquid is provided with LED lamp bead, transform hollow cavity another side in gas-liquid and be provided with the magnetic working medium corresponding with LED lamp bead, corresponding described magnetic working medium is provided with excitation unit.
Further illustrating as such scheme, transform hollow cavity another side in gas-liquid and be provided with the hollow circular-tube corresponding with LED lamp bead, described hollow circular-tube outwardly convex, described magnetic working medium is arranged on hollow circular-tube.
Further illustrating as such scheme, described magnetic working medium penetrate in gas-liquid conversion hollow cavity with the installation position of LED lamp bead against.
Further illustrating as such scheme, it comprises the temperature measuring equipment for measuring LED lamp bead operating temperature;
When operating temperature is more than 70 DEG C, excitation unit encourages degaussing to magnetic working medium, refrigeration work;
When operating temperature is lower than 50 DEG C, excitation unit quits work;
When operating temperature resists the cold limit lower than LED, excitation unit carries out not intermittently isothermal excitation to magnetic working medium, constant temperature work.
Further illustrating as such scheme, it also comprises temperature control module, and described temperature control module is connected with temperature measuring equipment, excitation unit signal, is used for controlling work opportunity of excitation unit and mode of operation.
Further illustrating as such scheme, described excitation unit comprises solenoid.
Further illustrating as such scheme, described magnetic working medium is by the above Rare-Earth Magnetic refrigerating material of room temperature, and La-Si-Fe alloy or MnFePS material are made.
Further illustrating as such scheme, it is vacuum chamber that described gas-liquid transforms hollow cavity, in vacuum chamber, be filled with low-boiling point liquid.
Further illustrating as such scheme, the vacuum of described vacuum chamber is between-90kPa to-30kPa.
Further illustrating as such scheme, described low-boiling point liquid is the mixture of pure water, alcohol and ether.
The present invention has following beneficial effect:
One, ingenious utilization gas-liquid transforms the installation base plate that hollow cavity serves as LED lamp bead, transforms in hollow cavity and forms a high-efficiency internal circulation, have very outstanding cold and hot switching performance, meet magnetic working medium and reduce phlegm and internal heat or external condition needed for constant temperature work in gas-liquid.
Two, adopt magnetic working medium and excitation unit to carry out reducing phlegm and internal heat or constant temperature, make high-powered LED lamp prodigiosin adapt to various extreme environment, such as, when the super negative thermal technology of high-power LED lamp does, utilize excitation unit to encourage degaussing to magnetic working medium, reach the object of refrigeration; When meeting polar region or high-altitude supercool temperature, excitation unit carries out not intermittently isothermal excitation to magnetic working medium, reach the object of constant temperature, overcome the various defects that the temperature difference causes completely, guarantee operating efficiency and the life-span of LED, be widely used in spacecraft, aircraft, submersible, polar expedition, the high-end fields such as ocean attracting, make LED use advantage really to be ensured.
Three, the LED heat dissipation structure metal material of existing more than 100W is at about 10 kilograms, and the present invention only can solve heat dissipation problem with the metal of 1-2 kilogram, and structure is brief, and low cost of manufacture is a kind of subversive revolution.Compare existing LED heat dissipation technology, material saving 80% of the present invention, radiating effect improves 200%.
Accompanying drawing explanation
Figure 1 shows that the heat radiation constant temperature structure schematic diagram that the embodiment of the present invention one provides;
Figure 2 shows that the heat radiation constant temperature structure schematic diagram that the embodiment of the present invention two provides.
Description of reference numerals:
1, gas-liquid transforms hollow cavity, and 2, LED lamp bead, 3, magnetic working medium, 4, excitation unit, 5, hollow circular-tube, 6, installation position.
Detailed description of the invention
Understand essence of the present invention better for convenience of those of ordinary skill in the art, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Embodiment one
As shown in Figure 1, a kind of constant temperature structure that reduces phlegm and internal heat of high-powered LED lamp, comprising: flat gas-liquid transforms hollow cavity 1, LED lamp bead 2, magnetic working medium 3 and excitation unit 4.
Wherein, described LED lamp bead 2 is arranged on the one side that gas-liquid transforms hollow cavity 1, transform on hollow cavity 1 another side in gas-liquid and be provided with the hollow circular-tube 5 corresponding with LED lamp bead 2, described hollow circular-tube 5 outwardly convex, the diameter of hollow circular-tube 5 conforms to the size of substrate of LED lamp bead 2.Described magnetic working medium 3 is arranged on the outer wall of hollow circular-tube 3, and described excitation unit 4 is corresponding with magnetic working medium 3, and what be used for realizing magnetic working medium 3 encourages degaussing.
During real work, if high-power LED lamp is in super negative hot working, then utilize excitation unit to encourage degaussing to magnetic working medium, reach the object of refrigeration of reducing phlegm and internal heat; If high-power LED lamp is in polar region or high-altitude supercool temperature duty, then excitation unit carries out not intermittently isothermal excitation to magnetic working medium, reaches the object of constant temperature.
In the present embodiment, it is vacuum vacuum chamber between-90kPa to-30kPa that preferred gas-liquid transforms hollow cavity 1, and in vacuum chamber, be filled with low-boiling point liquid, described low-boiling point liquid is the mixture of pure water, alcohol and ether.Preferred magnetic working medium 3 is made up of the above Rare-Earth Magnetic refrigerating material of room temperature, and preferred excitation unit 4 is for being looped around the solenoid around magnetic working medium 3, and described solenoid does not directly contact with magnetic working medium 3, so that the maintenance of device.
The quantity of preferred LED lamp bead 2 is three, and be just provided with a hollow circular-tube 5 to each LED lamp bead 2, one end of hollow circular-tube 5 is closed, and the other end and the gas-liquid of hollow circular-tube 5 transform hollow cavity 1 and be communicated with.The diameter of preferred each hollow circular-tube 5 is consistent with the size of substrate of corresponding LED lamp bead 2.
Temperature measuring equipment for measuring LED lamp bead operating temperature is preferably housed on gas-liquid conversion hollow cavity 1; When operating temperature is more than 70 DEG C, excitation unit encourages degaussing to magnetic working medium, refrigeration work; When operating temperature is lower than 50 DEG C, excitation unit quits work; When operating temperature resists the cold limit lower than LED, excitation unit carries out not intermittently isothermal excitation to magnetic working medium, constant temperature work.For convenience of the work opportunity and the mode of operation that control excitation unit, described temperature measuring equipment, excitation unit also signal are connected with temperature control module, utilize temperature control module to control the start and stop of excitation unit.
Embodiment two
As shown in Figure 2, a kind of constant temperature structure that reduces phlegm and internal heat of high-powered LED lamp, comprising: flat gas-liquid transforms hollow cavity 1, LED lamp bead 2, magnetic working medium 3 and excitation unit 4; Described LED lamp bead 2 is arranged on the one side that gas-liquid transforms hollow cavity 1.
The structure of the present embodiment and embodiment one is basically identical, and difference is; Omit hollow circular-tube, directly transform on hollow cavity 1 another side in gas-liquid and be provided with the magnetic working medium 3 corresponding with LED lamp bead 2, described magnetic working medium 3 penetrate in gas-liquid conversion hollow cavity 1 with the installation position 6 of LED lamp bead 2 against.Described excitation unit 4 is corresponding with magnetic working medium 3, and what be used for realizing magnetic working medium 3 encourages degaussing.
Compared with embodiment one, the present embodiment is by being arranged to contact with LED lamp bead installation position by magnetic working medium one end, and without the need to the conduction of extra gas-liquid critical heat, allow the cold constant temperature that goes of magnetic working medium more directly act in LED lamp bead, performance is more excellent.
Above detailed description of the invention has been described in detail essence of the present invention, but can not limit protection scope of the present invention with this.Apparently, under the enlightenment of essence of the present invention, the art those of ordinary skill also can carry out many improvement and modification, and such as, magnetic working medium selects La-Si-Fe alloy or MnFePS material to make.It should be noted that these improve and modify all to drop within claims of the present invention.
Claims (10)
1. the constant temperature structure that reduces phlegm and internal heat of high-powered LED lamp, it is characterized in that, comprising: flat gas-liquid transforms hollow cavity, the one side transforming hollow cavity in gas-liquid is provided with LED lamp bead, transform hollow cavity another side in gas-liquid and be provided with the magnetic working medium corresponding with LED lamp bead, corresponding described magnetic working medium is provided with excitation unit.
2. the constant temperature structure that reduces phlegm and internal heat according to claim 1, is characterized in that, transform hollow cavity another side in gas-liquid and be provided with the hollow circular-tube corresponding with LED lamp bead, described hollow circular-tube outwardly convex, described magnetic working medium is arranged on hollow circular-tube.
3. the constant temperature structure that reduces phlegm and internal heat according to claim 1, is characterized in that, described magnetic working medium penetrate in gas-liquid conversion hollow cavity with the installation position of LED lamp bead against.
4. the constant temperature structure that reduces phlegm and internal heat according to claim 1 or 2 or 3, is characterized in that, it comprises the temperature measuring equipment for measuring LED lamp bead operating temperature;
When operating temperature is more than 70 DEG C, excitation unit encourages degaussing to magnetic working medium, refrigeration work;
When operating temperature is lower than 50 DEG C, excitation unit quits work;
When operating temperature resists the cold limit lower than LED, excitation unit carries out not intermittently isothermal excitation to magnetic working medium, constant temperature work.
5. the constant temperature structure that reduces phlegm and internal heat according to claim 4, it is characterized in that, it also comprises temperature control module, and described temperature control module is connected with temperature measuring equipment, excitation unit signal, is used for controlling work opportunity of excitation unit and mode of operation.
6. the constant temperature structure that reduces phlegm and internal heat according to claim 1, is characterized in that, described excitation unit comprises solenoid.
7. the constant temperature structure that reduces phlegm and internal heat according to claim 1, is characterized in that, described magnetic working medium is by the above Rare-Earth Magnetic refrigerating material of room temperature, and La-Si-Fe alloy or MnFePS material are made.
8. the constant temperature structure that reduces phlegm and internal heat according to claim 1, is characterized in that, it is vacuum chamber that described gas-liquid transforms hollow cavity, in vacuum chamber, be filled with low-boiling point liquid.
9. the constant temperature structure that reduces phlegm and internal heat according to claim 8, is characterized in that, the vacuum of described vacuum chamber is between-90kPa to-30kPa.
10. the constant temperature structure that reduces phlegm and internal heat according to claim 8, is characterized in that, described low-boiling point liquid is the mixture of pure water, alcohol and ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510094969.4A CN104713047A (en) | 2015-03-03 | 2015-03-03 | Heat-removing constant-temperature structure for high-power LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510094969.4A CN104713047A (en) | 2015-03-03 | 2015-03-03 | Heat-removing constant-temperature structure for high-power LED lamp |
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| CN104713047A true CN104713047A (en) | 2015-06-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090126905A1 (en) * | 2007-11-16 | 2009-05-21 | Khanh Dinh | High reliability cooling system for LED lamps using dual mode heat transfer loops |
| CN102711332A (en) * | 2012-06-12 | 2012-10-03 | 哈尔滨工业大学 | Light-emitting diode (LED) outdoor lighting lamp driving power supply working in low-temperature environment |
| CN203464001U (en) * | 2013-08-29 | 2014-03-05 | 顺德职业技术学院 | High-power LED (Light-emitting Diode) lamp |
| CN104154511A (en) * | 2014-07-08 | 2014-11-19 | 华南理工大学 | Magnetic refrigeration pump circulating heat radiation based structure for LED lamp and method thereof |
-
2015
- 2015-03-03 CN CN201510094969.4A patent/CN104713047A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090126905A1 (en) * | 2007-11-16 | 2009-05-21 | Khanh Dinh | High reliability cooling system for LED lamps using dual mode heat transfer loops |
| CN102711332A (en) * | 2012-06-12 | 2012-10-03 | 哈尔滨工业大学 | Light-emitting diode (LED) outdoor lighting lamp driving power supply working in low-temperature environment |
| CN203464001U (en) * | 2013-08-29 | 2014-03-05 | 顺德职业技术学院 | High-power LED (Light-emitting Diode) lamp |
| CN104154511A (en) * | 2014-07-08 | 2014-11-19 | 华南理工大学 | Magnetic refrigeration pump circulating heat radiation based structure for LED lamp and method thereof |
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Application publication date: 20150617 |
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