CN106090808A - A kind of high efficiency thermoelectric conversion LED lamp - Google Patents
A kind of high efficiency thermoelectric conversion LED lamp Download PDFInfo
- Publication number
- CN106090808A CN106090808A CN201610389759.2A CN201610389759A CN106090808A CN 106090808 A CN106090808 A CN 106090808A CN 201610389759 A CN201610389759 A CN 201610389759A CN 106090808 A CN106090808 A CN 106090808A
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- China
- Prior art keywords
- heat
- led lamp
- high efficiency
- thermoelectric conversion
- temperature difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/04—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a kind of high efficiency thermoelectric conversion LED lamp, including PCB and the some LED lamp bead being arranged in PCB, under PCB, be disposed with heat-radiating substrate and temperature difference electricity generation device;Also including power sources in parallel supply module, this power sources in parallel supply module is connected with the electrode on power supply and PCB by wire respectively, and power sources in parallel supply module is also connected by wire with the electrode on temperature difference electricity generation device.High efficiency thermoelectric conversion LED lamp of the present invention, use heat radiation and collect the way that heat combines, utilize the principle of thermo-electric generation, the heat energy making LED produce is converted into electric energy, directly feed LED itself after being then passed through power sources in parallel supply module to use, reduce the power output of former power supply, and be not required to through thermal energy storage process loss of energy, thus reach the purpose of energy-conserving and environment-protective, and reach the function of heat radiation.
Description
Technical field
The invention belongs to lighting technical field, be specifically related to a kind of high efficiency thermoelectric conversion LED lamp.
Background technology
LED lamp (Light Emitting Diode) is a kind of solid light converting electrical energy into luminous energy
Source.Compared with conventional light source, have length in service life, volume is little, it is low to consume energy, reliability is high, response is fast, flexible design, control
The advantage such as flexibly.But, owing to the principle of luminosity of LED can cause lattice vibration, convert electrical energy into heat energy.The heat that LED produces
LED junction temperature can be made drastically to raise, cause chip internal heat to assemble, cause luminous dominant wavelength shift, luminous efficiency declines, glimmering
Light powder accelerated ageing, shortens the service life of LED etc..Therefore effective cooling measure is also in fast development.But LED is produced
Raw heat carries out one and recycles, and the LED light emission device manufacturing a kind of heat to electricity conversion has good application prospect.
With the development of LED technology, power is more and more higher, and the requirement to heat abstractor is also more and more higher.Heat radiation base at present
Plate quickly grows, mainly by metal-core printed circuit board, metal-base composites, ceramic matric composite.But with solving to dissipate
Heat problem, also has people that sight turns to environmental protection direction, and on the basis of solving heat dissipation problem, the heat producing LED is again sharp
Use.
The Chinese patent of Application No. 201420499471.7 (notification number: the 204026461st, the applying date: 2014.8.29) is public
A kind of LED of cloth.It is that the heat being come out LED can be collected by heat-collecting disc, then turned by thermoelectricity
Change device and the converting heat of absorption is become electric energy, then by electrical power storage inside Li-ion batteries piles, can transport when having a power failure
With the electric energy of heat to electricity conversion.But lithium ion battery all can have the loss of energy, and lithium ion at charging process and discharge process
The charge efficiency of battery is affected by operating ambient temperature, and general environment temperature is higher, then charge efficiency is lower, and effect of discharging
The rate efficiency when environment temperature is lower really is lower, then charge efficiency and discharging efficiency can not be taken into account simultaneously.
The Chinese patent of Application No. 201420023230.5 (notification number: the 203718527th, the applying date: 2014.1.14) is public
A kind of LED spotlight of cloth.Being to be directly installed on integrated for planar LED lamp plate on Lamp cup, the hot first step that lamp plate produces is reflective
Lamp cup absorbs and is dispersed in air, and by Reflecting lamp cup, heat is led radiator, and radiator is dispersed into heat in air again.
Take into consideration only the heat dissipation problem of LED, but do not account for recycling of heat.
Application No. 2014208380822 (notification number: the 204301013rd, the day for announcing: 2015.4.29, the applying date:
2014.12.25) Chinese patent discloses a kind of LED heat radiation and residual neat recovering system.The heat of LED lamp passes through heat pipe
Radiator conducts, and utilizes semiconductor heat electric transducer, heat energy is converted into after electric energy is then passed through stored energy, gives part LED
Power supply.But the stored energy described in this patent be transfer heat to electric energy after first store, then resupply electrical equipment
Using, the input in this conversion energy storage path and output have the loss of an energy.
Application No. 201520128723X (notification number: the 204534496th, the day for announcing: 2015.8.5, the applying date:
2015.3.15) Chinese patent discloses the LED heat abstractor of a kind of available waste heat.This device is to load onto below substrate
Semiconductor thermoelectric conversion devices, then the electrical power storage of semiconductor thermoelectric converter conversion inside battery.This patent is again
Make use of thermoelectric conversion but still simply electric energy first store.This device has disadvantages that, battery energy storage volume is relatively big,
And limited battery capacity, it is all to have energy loss during charging and discharging.
Application No. 2014204609847 (notification number: the 204026476th, the day for announcing: 2014.12.17, the applying date:
2014.8.15) Chinese patent disclose a kind of energy recovery solar street light.This device is to reclaim LED lamp to come out
Heat, utilize heat to generate electricity.This patent is that the heat producing for lamp luminescence radiation carries out a recycling, logical
Cross thermo-electric generation, be then stored into inside battery.The simply simple heat production having reclaimed light fixture radiation, and remain and be stored into
Inside battery.
Content of the invention
It is an object of the invention to provide a kind of high efficiency thermoelectric conversion LED lamp, utilize the principle of thermo-electric generation, make LED produce
Raw heat energy is converted into electric energy and directly feeds LED use itself, reduces the power output of former power supply, and is not required to through energy storage
Journey and loss of energy.
The technical solution adopted in the present invention is, a kind of high efficiency thermoelectric conversion LED lamp, including PCB and being arranged on
Some LED lamp bead in PCB, are disposed with heat-radiating substrate and temperature difference electricity generation device under PCB;Also include electricity
Source parallel operation module, this power sources in parallel supply module is respectively by wire with the electrode on power supply and PCB even
Connecing, power sources in parallel supply module is also connected by wire with the electrode on temperature difference electricity generation device.
The feature of the present invention also resides in,
Temperature difference electricity generation device is to be obtained on heat-radiating substrate by using the method for serigraphy to be printed onto thermoelectric material.
Thermoelectric material is Bi-Te base alloy, Bi-Sb-Te-Se system material, the one in PbTe, SbZn or SiGe.
The hot junction of temperature difference electricity generation device is connected with heat-radiating substrate.
The cold end of temperature difference electricity generation device is provided with radiator.
Heat-radiating substrate is aluminum cooling substrates, copper heat-radiating substrate or iron heat-radiating substrate;Radiator is aluminium radiator, copper radiator
Or heat-pipe radiator.
Power sources in parallel supply module replaces with voltage-regulation voltage-stabilization module.
The invention has the beneficial effects as follows, high efficiency thermoelectric conversion LED lamp of the present invention, by by LED and temperature difference electricity generation device
Combining, temperature difference electricity generation device is close to below the heat-radiating substrate of LED, due to action of thermal difference so that it is produce voltage x current, so
After it is connected with power sources in parallel supply module by wire with former power supply, automatically control former power supply and the work(of thermo-electric generation power supply
Rate inputs, but total output valve is a fixing value, and supply LED uses;Or at the electricity that temperature difference electricity generation device is produced
When source supply portion lamp bead uses, LED while closing power supply can be made to be unlikely to entirety and all to go out;The method energy-saving ring
Protect, have a extensive future.
Brief description
Fig. 1 is the structural representation of high efficiency thermoelectric conversion LED lamp of the present invention.
In figure, 1.LED lamp bead, 2.PCB wiring board, 3. heat-radiating substrate, 4. temperature difference electricity generation device, 5. radiator, 6. power supply
Parallel operation module, 7. power supply.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
High efficiency thermoelectric conversion LED lamp of the present invention, as it is shown in figure 1, include PCB 2 and be arranged in PCB 2
Some LED lamp bead 1, be disposed with heat-radiating substrate the 3rd, temperature difference electricity generation device 4 and radiator 5 under PCB 2;Also include
Power sources in parallel supply module 6, this power sources in parallel supply module 6 is respectively by wire and the electricity on power supply and PCB 2
Pole connects, and power sources in parallel supply module 6 is also connected by wire with the electrode on temperature difference electricity generation device 4.
Temperature difference electricity generation device 4 is to be obtained on heat-radiating substrate by using the method for serigraphy to be printed onto thermoelectric material.
Thermoelectric material is Bi-Te base alloy, Bi-Sb-Te-Se system material, the one in PbTe, SbZn or SiGe.
The hot junction of temperature difference electricity generation device 4 is connected with heat-radiating substrate 3;The cold end of temperature difference electricity generation device 4 is connected with radiator 5.
Heat-radiating substrate 3 is aluminum cooling substrates, copper heat-radiating substrate or iron heat-radiating substrate;Radiator 5 is aluminium radiator, copper heat radiation
Device or heat-pipe radiator.
Power sources in parallel supply module 6 replaces with voltage-regulation voltage-stabilization module, divides the power suppling part that temperature difference electricity generation device 4 produces
When lamp bead uses, LED lamp bead while closing power supply can be made to be unlikely to entirety and all to go out.
The running of high efficiency thermoelectric conversion LED lamp of the present invention is: when the power is turned on, LED is started working, in luminescence
While produce heat.This heat can be conducted to the hot junction of temperature difference electricity generation device 4 from LED chip by heat-radiating substrate 3, and warm
The cold end of difference TRT 4 remains low temperature, produces the temperature difference, thus has voltage x current to produce, with the temperature difference increase voltage with
Electric current also can increase.The power output end of temperature difference electricity generation device 4 (is used certainly by power sources in parallel supply module 6 with former power supply
Dynamic pulse modulation technology) connect, the electric energy of generation is powered directly to LED lamp bead;
Or the power output end of temperature difference electricity generation device is connected with voltage-regulation voltage-stabilization module, is then output to the portion of LED
Divide lamp bead, supply power for.
High efficiency thermoelectric conversion LED lamp of the present invention, uses heat radiation and collects the way that heat combines, utilizing thermo-electric generation
Principle, the heat energy making LED produce is converted into electric energy, is then passed through power sources in parallel supply module and (uses automatic pulse modulation skill
Art) after directly feed LED itself use, reduce the power output of former power supply, and be not required to through thermal energy storage process loss of energy,
Thus reach the purpose of energy-conserving and environment-protective, and reach the function of heat radiation.
LED of the present invention is with conventional LED power consumption contrast as shown in table 1.
Table 1 LED of the present invention and conventional LED power consumption contrast
Claims (7)
1. a high efficiency thermoelectric conversion LED lamp, it is characterised in that include PCB (2) and be arranged in PCB (2)
Some LED lamp bead (1), be disposed with heat-radiating substrate (3) and temperature difference electricity generation device (4) under described PCB (2);Also
Including power sources in parallel supply module (6), described power sources in parallel supply module (6) is respectively by wire and power supply (7) and PCB
Electrode on wiring board (2) connects, and power sources in parallel supply module (6) also passes through wire with the electrode on temperature difference electricity generation device (4)
Connect.
2. high efficiency thermoelectric conversion LED lamp according to claim 1, it is characterised in that described temperature difference electricity generation device (4) is logical
Cross and use the method for serigraphy to be printed onto thermoelectric material and obtain on heat-radiating substrate.
3. high efficiency thermoelectric conversion LED lamp according to claim 2, it is characterised in that described thermoelectric material is that Bi-Te base closes
One in gold, Bi-Sb-Te-Se system material, PbTe, SbZn or SiGe.
4. high efficiency thermoelectric conversion LED lamp according to claim 1, it is characterised in that the heat of described temperature difference electricity generation device (4)
End is connected with heat-radiating substrate.
5. high efficiency thermoelectric conversion LED lamp according to claim 1, it is characterised in that described temperature difference electricity generation device (4) cold
End is provided with radiator (5).
6. high efficiency thermoelectric conversion LED lamp according to claim 5, it is characterised in that described heat-radiating substrate (3) is aluminium heat radiation
Substrate, copper heat-radiating substrate or iron heat-radiating substrate;Described radiator (5) is aluminium radiator, copper radiator or heat-pipe radiator.
7. high efficiency thermoelectric conversion LED lamp according to claim 1, it is characterised in that described power sources in parallel supply module (6)
Replace with voltage-regulation voltage-stabilization module.
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CN201610389759.2A CN106090808A (en) | 2016-06-03 | 2016-06-03 | A kind of high efficiency thermoelectric conversion LED lamp |
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CN201610389759.2A CN106090808A (en) | 2016-06-03 | 2016-06-03 | A kind of high efficiency thermoelectric conversion LED lamp |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108644632A (en) * | 2018-06-20 | 2018-10-12 | 深圳市漫反射照明科技有限公司 | A kind of energy saving recuperation of heat LED illumination lamp and its energy saving heat recovery method |
CN109150013A (en) * | 2018-07-20 | 2019-01-04 | 江苏省发明协会 | A kind of light emitting device and its method of supplying power to |
CN114370627A (en) * | 2022-01-07 | 2022-04-19 | 厦门普为光电科技有限公司 | Lighting device with high energy conversion efficiency |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108644632A (en) * | 2018-06-20 | 2018-10-12 | 深圳市漫反射照明科技有限公司 | A kind of energy saving recuperation of heat LED illumination lamp and its energy saving heat recovery method |
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CN114370627A (en) * | 2022-01-07 | 2022-04-19 | 厦门普为光电科技有限公司 | Lighting device with high energy conversion efficiency |
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