CN203571485U - LED illumination system with heat recovery function - Google Patents
LED illumination system with heat recovery function Download PDFInfo
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- CN203571485U CN203571485U CN201320657751.1U CN201320657751U CN203571485U CN 203571485 U CN203571485 U CN 203571485U CN 201320657751 U CN201320657751 U CN 201320657751U CN 203571485 U CN203571485 U CN 203571485U
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- heat
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- illuminator
- recovery function
- light source
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Abstract
The utility model discloses an LED illumination system with a heat recovery function. An illumination device and a heat recovery device are separated, so that under the condition of space limitation, an LED plane light source, a thermoelectricity module and heat dissipation fins are arranged in an adaptive mode, practicability of the illumination system is greatly improved, the structure of the illumination system is simplified, and the size of the illumination system is reduced. The thermoelectricity module is used for absorbing heat generated by the LED plane light source, efficient heat dissipation of the LED plane light source is achieved, a part of waste heat can be subjected to thermoelectric conversion, electric energy can be output to a power grid or an energy accumulating battery through a wire for recycling, the electric energy can be used as an auxiliary power source of an LED, and resource waste is reduced. In addition, through the heat dissipation fins, the heat exchanging area is effectively increased, the rest of the heat can be dissipated as soon as possible, the illumination system is kept to be within a normal temperature range, and light emitting quality and service life of the LED plane light source can be guaranteed.
Description
Technical field
The utility model belongs to LED lighting technical field, is specifically related to a kind of LED illuminator with heat recovery function.
Background technology
In order to improve luminous efficiency and life-extending, High Power LED (LED) has replaced incandescent lamp and fluorescent lamp gradually.One of topmost advantage of LED is exactly the high-effect of it.Traditional incandescent lamp and fluorescent lamp have 80% electric energy energy transform into heat energy nearly to lose, and LED only has 20% or heat-energy losses still less.But the heat that incandescent lamp and fluorescent lamp produce mostly passes to bulb outside with the form of radiation, a small amount of heat that LED produces can not be delivered to outside, thereby LED illuminator temperature can raise gradually, has a strong impact on its luminous efficiency and service life.So, need to carry out effective thermal management to LED illuminator and normally use and improve service life to guarantee it.
LED lamp is mainly by the method for natural heat dissipation in the market, and from thermal conduction study angle, natural heat dissipation is to utilize free convection and heat radiation as basic radiating principle.In natural heat dissipation, basic thought is to the heat loss through convection of surrounding air with to the heat loss through radiation of object around by light fixture outside wall surface, especially fin.This heat radiation form relies on the version (as finned) of light fixture self to realize heat radiation.The approach that improves radiating effect is mainly increased area of dissipation and ventilating convection effect and improved surface emissivity coefficient by optimal design, and the problem of bringing is thus to increase size and cost.According to investigations, the LED lamp of a 100W at least needs the heat radiation expense of 350 yuan.And this mode is very high to the version requirement of light fixture, and outward appearance is heavy, affects attractive in appearance and grade.Heating power dispels the heat while increasing, and cost increases suddenly and heat dissipation capacity is limited.
In prior art, disclose " a kind of LED lighting device of realizing heat recovery (patent No.: 200810017370.0) ", in this patent, propose to adopt thermoelectric conversion device recovery waste heat, realize energy-efficient technique effect, and by being converted to controlling electric energy radiator fan, the waste heat of recovery dispels the heat, realize the heat radiation of LED, but because thermoelectric conversion device and radiator fan are all integrated in one with LED, the structure that causes lighting device is comparatively complicated, volume is larger, cost is higher, and maintain and replace inconvenience.
In view of above problem, be necessary to propose a kind of LED illuminator with heat recovery function, to simplify the structure of illuminator, reduce the overall volume of illuminator, operation easy to use, realizes the sufficient recycling of heat that LED is produced, increase operation rate, reduce heat radiation cost.
Utility model content
In view of this, the utility model provides a kind of LED illuminator with heat recovery function, to simplify the structure of illuminator, reduce the volume of illuminator, operation easy to use, realizes the sufficient recycling of heat that LED is produced, increase operation rate, reduce heat radiation cost.
A kind of LED illuminator with heat recovery function proposing according to the purpose of this utility model, comprise lighting device and heat reclamation device, described lighting device and described heat reclamation device apart arrangement, be connected with heat pipe between described lighting device and described heat reclamation device;
Described lighting device comprises circuit board, is arranged at least one heat-radiating substrate and LED planar light source on described circuit board, and described LED planar light source is that correspondence is arranged at the LED on described heat-radiating substrate one by one;
Described heat reclamation device comprises electrothermal module and the energy-storage units connecting by wire, and the upper surface thermo-contact of described heat pipe and described electrothermal module forms hot junction, and the lower end of described electrothermal module is cold junction.
Preferably, described illuminator also comprises heat abstractor.
Preferably, described heat abstractor is the radiating fin that is arranged at described electrothermal module below.
Preferably, the lower surface thermo-contact of described radiating fin and described electrothermal module.
Preferably, described radiating fin is comprised of a plurality of U-shaped fin being set up in parallel.
Preferably, on described circuit board, offer through hole, between described heat-radiating substrate and described heat pipe, be connected with heat-conducting piece, described heat-conducting piece is through described through hole.
Preferably, in described illuminator, the hot joining synapsis between each parts is provided with conduction oil.
Compared with prior art, the disclosed advantage with the LED illuminator of heat recovery function of the utility model is: by by lighting device and heat reclamation device apart arrangement, can guarantee like this in space-constrained situation, LED planar light source, electrothermal module and radiating fin can adaptively be arranged, greatly improved the practicality of illuminator, simplified the structure of illuminator, reduced the overall volume of illuminator, operation easy to use.By electrothermal module is set, the heat of LED planar light source generation is absorbed, not only can realize the high efficiency and heat radiation of LED planar light source, and part of waste heat can be carried out to thermoelectricity conversion, and electric energy is outputed in electrical network or energy-storage battery and recycled by wire, can be used as the accessory power supply of LED, improve power utilization rate, reduce the waste of resource, realize energy-conservation object.
In addition, by radiating fin is set, effectively increased heat exchange area, remaining heat can have been dissipated as early as possible, guaranteed that illuminator remains in normal temperature range, to guarantee luminous mass and the service life of LED planar light source always.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the disclosed a kind of stereogram with the LED illuminator of heat recovery function of the utility model.
Fig. 2 is the disclosed a kind of top view with the LED illuminator of heat recovery function of the utility model.
Fig. 3 is the disclosed a kind of front view with the LED illuminator of heat recovery function of the utility model.
The title of the numeral in figure or the corresponding component of alphabetical representative:
1, LED planar light source 2, heat-radiating substrate 3, circuit board 4, heat pipe 5, electrothermal module 6, radiating fin 7, wire 8, Heat Conduction Material 9, through hole
The specific embodiment
At present, LED is used more and more extensive at lighting field, but a small amount of heat producing due to LED cannot be delivered to outside, therefore has a strong impact on its luminous efficiency and service life.And LED lamp is mainly by the method for natural heat dissipation on market, the method heating power dispels the heat while increasing, and cost increases suddenly and heat dissipation capacity is limited.
In prior art, disclose " a kind of LED lighting device of realizing heat recovery (patent No.: 200810017370.0) ", in this patent, propose to adopt thermoelectric conversion device recovery waste heat, and by being converted to controlling electric energy radiator fan, the waste heat of recovery dispels the heat, but because thermoelectric conversion device and radiator fan are all integrated in one with LED, radiating effect is not obvious, and the structure of lighting device is comparatively complicated, volume is larger, and cost is higher, and maintain and replace inconvenience.
The utility model is for deficiency of the prior art, a kind of LED illuminator with heat recovery function is provided, to simplify the structure of illuminator, reduce the volume of illuminator, operation easy to use, the sufficient recycling of heat that realization produces LED, increases operation rate, and reduces heat radiation cost.
To the technical solution of the utility model, be clearly and completely described by the specific embodiment below.Obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please also refer to Fig. 1 to Fig. 3, Fig. 1 is the disclosed a kind of stereogram with the LED illuminator of heat recovery function of the utility model.Fig. 2 is the disclosed a kind of top view with the LED illuminator of heat recovery function of the utility model.Fig. 3 is the disclosed a kind of front view with the LED illuminator of heat recovery function of the utility model.As shown in the figure, a kind of LED illuminator with heat recovery function, comprise lighting device and heat reclamation device, lighting device and heat reclamation device apart arrangement, between lighting device and heat reclamation device, be connected with heat pipe 4, by heat pipe 4, the heat producing in lighting device be passed to heat reclamation device and recycle.In heat pipe 4, be provided with liquid-sucking core, liquid-sucking core is full of liquid phase-change medium, is pumped into negative-pressure sealing in pipe.
By by lighting device and heat reclamation device apart arrangement, can guarantee like this in space-constrained situation, lighting device and heat reclamation device can adaptively be arranged, greatly improved the practicality of illuminator, simplified the structure of illuminator, reduced the overall volume of illuminator, operation easy to use.And the heat recovery effectively lighting device being produced, to heat reclamation device place, improves loose heat availability.
Lighting device comprises circuit board 3, is arranged at least one heat-radiating substrate 2 and LED planar light source 1 on circuit board 3, and LED planar light source 1 is that correspondence is arranged at the LED on heat-radiating substrate 2 one by one.In illuminator, can comprise one or more LED, each LED connects a heat-radiating substrate, and is fixed on one or more circuit boards.Each circuit board can be connected with one or more electrothermal modules by heat pipe.Concrete structure mode does not limit.
On circuit board, promising LED provides the electric conductor of power supply, is also fixed with the some other electronic component relevant to LED planar light source simultaneously.Circuit board material can be glass or annular resin, is preferably and adopts aluminium or other metals to print, and makes it have good thermal conductance.The material of heat-radiating substrate is generally copper or copper alloy, heat-radiating substrate surrounds LED planar light source, and with the substrate thermo-contact of LED, can effectively collect the heat that LED planar light source produces, and pass to heat-radiating substrate, avoid heat concentrations and affect service life of LED.
Heat reclamation device comprises the electrothermal module 5 and energy-storage units (not shown) connecting by wire 7, and heat pipe 4 forms hot junction with the upper surface thermo-contact of electrothermal module 5, and the lower end of electrothermal module is cold junction.By electrothermal module is set, heat-radiating substrate can fully conduct out and absorb by heat pipe the hot-fluid of LED planar light source, utilizes afterwards electrothermal module that heat is converted to electric energy and keeps in and transform rear output by energy-storage units, for LED electric consumption on lighting provides supplementary.
Illuminator also comprises heat abstractor, and heat abstractor is the radiating fin 6 that is arranged at electrothermal module 5 belows.The lower surface thermo-contact of radiating fin 6 and electrothermal module 5.By radiating fin is set, increase heat exchange area, electrothermal module can be reclaimed to remaining heat and dissipate as early as possible, guarantee that LED illuminator remains in normal temperature range always, to guarantee luminous mass and the service life of LED planar light source.
Wherein, radiating fin is comprised of a plurality of U-shaped fin being set up in parallel.Radiating fin material generally adopts metal, metal alloy or heat-conducting polymer material, considers the factors such as cost, efficiency, and radiating fin adopts conventional aluminium radiating fin to make.
On circuit board 3, offer through hole 9,4 of heat-radiating substrate 2 and heat pipes are connected with heat-conducting piece (not shown), and heat-conducting piece is through through hole 9.
By boring a hole on circuit board, utilize heat-conducting piece that heat-radiating substrate and heat pipe are carried out to thermo-contact, the heat of collecting in heat-radiating substrate is transmitted out.The other end thermo-contact of the upper surface of electrothermal module (being hot junction) and heat pipe, heat pipe is delivered to the heat in heat-radiating substrate the upper surface of electrothermal module continually, and the lower surface of electrothermal module (being cold junction) and radiating fin thermo-contact, electrothermal module upper and lower surface just there will be the temperature difference like this, in wire 7, just having electric current produces, realization becomes electric energy by thermal power transfer, and electric energy is outputed in electrical network or energy-storage battery by wire, can be used as the accessory power supply of LED.Wherein, above-mentioned each thermal place all adopts conduction oil to strengthen heat transfer as Heat Conduction Material.
Operation principle of the present utility model is as follows:
When LED illuminator is moved by additional power source, LED planar light source 1 produces heat and passes to heat-radiating substrate 2 and circuit board 3, is positioned at circuit board 3 heat pipe 4 below and will absorbs heat, and heat is delivered to the upper surface of electrothermal module 5.Now, the upper and lower surface of electrothermal module 5, owing to there being the temperature difference, just has electric current and occurs, and electric energy is outputed to energy-storage units in wire 7.The heat not utilizing completely will be gone out heat dissipation by the radiating fin 6 of electrothermal module lower surface.
System architecture of the present utility model, than existing lighting device, has following 3 advantages:
One, by LED planar light source and electrothermal module and radiating fin apart arrangement, can realize LED illuminator reasonable Arrangement under less space, further expanded the range of application of LED illuminator.
Two, the heat that LED produces is delivered to electrothermal module by heat pipe, the heat that can in time LED be produced passes, the operating ambient temperature that has guaranteed LED planar light source can not increase along with the increase of working time, has greatly improved service life and the luminous efficiency of LED planar light source.
Three, utilize electrothermal module to convert waste heat to electric energy, the electric energy of generation can offer LED illuminator again, so just can reduce the whole energy consumption of illuminator, reaches the object of saving the energy.And along with the conversion efficiency of thermoelectric of electrothermal module improves constantly, the energy-saving effect of LED illuminator of the present utility model can be more obvious.
The utility model discloses a kind of LED illuminator with heat recovery function, by by lighting device and heat reclamation device apart arrangement, can guarantee like this in space-constrained situation, LED planar light source, electrothermal module and radiating fin can adaptively be arranged, greatly improved the practicality of illuminator, simplified the structure of illuminator, reduced the overall volume of illuminator, operation easy to use.By electrothermal module is set, the heat of LED planar light source generation is absorbed, not only can realize the high efficiency and heat radiation of LED planar light source, and part of waste heat can be carried out to thermoelectricity conversion, and electric energy is outputed in electrical network or energy-storage battery and recycled by wire, can be used as the accessory power supply of LED, improve power utilization rate, reduce the waste of resource, realize energy-conservation object.
In addition, by radiating fin is set, effectively increased heat exchange area, remaining heat can have been dissipated as early as possible, guaranteed that illuminator remains in normal temperature range, to guarantee luminous mass and the service life of LED planar light source always.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a LED illuminator with heat recovery function, is characterized in that, comprises lighting device and heat reclamation device, and described lighting device and described heat reclamation device apart arrangement, be connected with heat pipe between described lighting device and described heat reclamation device;
Described lighting device comprises circuit board, is arranged at least one heat-radiating substrate and LED planar light source on described circuit board, and described LED planar light source is that correspondence is arranged at the LED on described heat-radiating substrate one by one;
Described heat reclamation device comprises electrothermal module and the energy-storage units connecting by wire, and the upper surface thermo-contact of described heat pipe and described electrothermal module forms hot junction, and the lower end of described electrothermal module is cold junction.
2. the LED illuminator with heat recovery function as claimed in claim 1, is characterized in that, described illuminator also comprises heat abstractor.
3. the LED illuminator with heat recovery function as claimed in claim 2, is characterized in that, described heat abstractor is the radiating fin that is arranged at described electrothermal module below.
4. the LED illuminator with heat recovery function as claimed in claim 3, is characterized in that, the lower surface thermo-contact of described radiating fin and described electrothermal module.
5. the LED illuminator with heat recovery function as claimed in claim 3, is characterized in that, described radiating fin is comprised of a plurality of U-shaped fin being set up in parallel.
6. the LED illuminator with heat recovery function as claimed in claim 1, is characterized in that, on described circuit board, offers through hole, between described heat-radiating substrate and described heat pipe, is connected with heat-conducting piece, and described heat-conducting piece is through described through hole.
7. the LED illuminator with heat recovery function as described in claim 1-6 any one, is characterized in that, the hot joining synapsis in described illuminator between each parts is provided with conduction oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657751.1U CN203571485U (en) | 2013-10-23 | 2013-10-23 | LED illumination system with heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657751.1U CN203571485U (en) | 2013-10-23 | 2013-10-23 | LED illumination system with heat recovery function |
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| Publication Number | Publication Date |
|---|---|
| CN203571485U true CN203571485U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320657751.1U Expired - Fee Related CN203571485U (en) | 2013-10-23 | 2013-10-23 | LED illumination system with heat recovery function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527955A (en) * | 2013-10-23 | 2014-01-22 | 苏州大学 | LED illuminating system with heat recovering function |
| CN105240774A (en) * | 2015-11-18 | 2016-01-13 | 蒋敏 | LED vehicle lamp |
-
2013
- 2013-10-23 CN CN201320657751.1U patent/CN203571485U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527955A (en) * | 2013-10-23 | 2014-01-22 | 苏州大学 | LED illuminating system with heat recovering function |
| CN105240774A (en) * | 2015-11-18 | 2016-01-13 | 蒋敏 | LED vehicle lamp |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20161023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |