CN102438371A - Active heat dissipation type LED lamp - Google Patents
Active heat dissipation type LED lamp Download PDFInfo
- Publication number
- CN102438371A CN102438371A CN2011104133174A CN201110413317A CN102438371A CN 102438371 A CN102438371 A CN 102438371A CN 2011104133174 A CN2011104133174 A CN 2011104133174A CN 201110413317 A CN201110413317 A CN 201110413317A CN 102438371 A CN102438371 A CN 102438371A
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- refrigeration
- refrigeration semiconductor
- substrate
- led lamp
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- 230000017525 heat dissipation Effects 0.000 title abstract 2
- 238000005057 refrigeration Methods 0.000 claims abstract description 59
- 239000004065 semiconductor Substances 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract 2
- 238000005265 energy consumption Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention belongs to the technical field of lighting equipment, and relates to an active heat dissipation type LED lamp which comprises an LED chip, an LED drive circuit and a substrate, and is characterized by also comprising a refrigeration semiconductor, a radiator, a control circuit and a temperature sensor, wherein the refrigeration semiconductor is arranged between the substrate and the radiator, one surface of the refrigeration semiconductor is connected with the substrate, and the other surface of the refrigeration semiconductor is connected with the radiator; the temperature sensor is arranged on the substrate, a measurement signal of the temperature sensor is sent to the control circuit, the control circuit controls whether the refrigeration semiconductor is powered on or not according to the measurement signal of the temperature sensor, if the refrigeration semiconductor is powered on, the working mode of the refrigeration semiconductor is a refrigeration mode, and if the refrigeration semiconductor is powered off, the working mode of the refrigeration semiconductor is a circuit-breaking mode. The invention can greatly prolong the service life of the LED lamp and expand the application occasions of the LED lamp.
Description
Technical field
The invention belongs to technical field of lighting fixtures, relate to a kind of LED lamp.
Background technology
Great power LED is compared with conventional light source, multinomial advantage such as have energy-conserving and environment-protective, the response time is short, efficient is high, volume is little, the life-span is long, shock resistance is good.The LED Lighting Industry is just leading the revolution of throwing light on for the third time with development at a high speed.No matter LED luminescence chip, or led drive circuit, the heat radiation level is determining their life-span, i.e. the life-span of LED lighting.80 ℃ just can be caused the rapid light decay of LED luminescence chip, and driving circuit section just possibly cause some electronic devices and components of serious failure for 110 ℃.For with a lighting, do not allow to take to increase the effect that input power reaches high lumen output simply, because too high input power is bound to bring serious heat problem, thereby cause serious light decay, and shorten the life-span of LED light fixture greatly.We can say that radiating effect is determining the life-span of LED light fixture, restricted its application scenario.
In actual LED lighting design; The heat that the LED luminescence chip is produced must propagate into through special radiator structure in the air; In case the LED luminescence chip is overheated; Common method is that LED is welded on the substrate with radiator structure, and heat is dispersed in the air through substrate and radiator structure thereof.Such radiating mode under the lower situation of ambient temperature, can reach better heat radiating effect.But for the LED light fixture that need at high temperature work sometimes, for example street lamp.In summer, conventional LED street lamp often breaks down owing to ambient temperature is too high.
Summary of the invention
The objective of the invention is, overcome the above-mentioned deficiency of prior art, a kind of LED street lamp with great heat radiation effect is provided.Technical scheme of the present invention is following:
A kind of active heat removal formula LED lamp; Comprise led chip, led drive circuit and substrate; Described active heat removal formula LED lamp also comprises refrigeration semiconductor, radiator, control circuit and temperature sensor; Refrigeration semiconductor is arranged between substrate and the radiator, and its one side links to each other with substrate, and another side links to each other with radiator; Temperature sensor is arranged on the substrate; Its measuring-signal is admitted to control circuit; Control circuit is controlled whether energized of refrigeration semiconductor according to the measuring-signal of temperature sensor, if energized, then the mode of operation of refrigeration semiconductor is a refrigeration mode; If deenergization, then the mode of operation of refrigeration semiconductor is the pattern that opens circuit.
As preferred implementation; Described LED lamp also comprises heat-barrier material; The position that does not link to each other through refrigeration semiconductor between substrate and the radiator is not in contact with one another, but is filled with heat-barrier material, makes only to exist refrigeration semiconductor as passage of heat between substrate and the radiator; Also comprise generating/refrigeration commutation circuit, control circuit is a kind of in following three kinds of patterns according to the measuring-signal of temperature sensor and the mode of operation through generating/refrigeration commutation circuit control refrigeration semiconductor: the pattern that opens circuit, refrigeration mode and power generation mode; If power generation mode, the thermo-electric generation electric energy that refrigeration semiconductor produces is through generating/refrigeration commutation circuit treatment and supplied led drive circuit.
The present invention has solved LED through temperature controlled refrigeration semiconductor because the bad light decay problem of heat radiation; Improved the luminance in later stage; Offset the energy consumption of refrigeration semiconductor, calculated from total life cycle, not only few power consumption is more energy-conservation than common LED lamp tool on the contrary; Improve the life-span of LED light fixture greatly, expanded the application scenario of LED lamp.One embodiment of the present invention when ambient temperature is very low, can also start generating/refrigeration commutation circuit; Through sacrificing a part of heat sinking function; And the electric energy that makes refrigeration semiconductor utilize the temperature difference to produce is collected, and supplies with the led drive circuit, thereby has further saved electric energy.
Description of drawings
The mechanical structure sketch map of the LED lamp of Fig. 1 embodiment of the invention.
The schematic block circuit diagram of Fig. 2 embodiment of the invention 1.
The schematic block circuit diagram of Fig. 3 embodiment of the invention 2.
Description of reference numerals is following: 1 light fixture fin, 2 heat-barrier materials, 3LED luminous tube, 4 aluminium bases, 5 refrigeration semiconductors, 6 control circuits and power supply.
Embodiment
Referring to Fig. 1, the LED lamp of the embodiment of the invention, be adopt carry out on the LED light fixture of aluminium base as heat-radiating substrate improved.Be trapped among the outside of aluminium base 4 at fin 1, both are not in contact with one another, but link to each other through refrigeration semiconductor 5, and the part that links to each other through refrigeration semiconductor is not coated with heat-barrier material 2, makes that the heat on the aluminium base can only outwards dispel the heat through refrigeration semiconductor.On substrate, be fixed with temperature sensor, temperature sensor links to each other with control circuit.Control circuit is according to the temperature data that records of temperature sensor, and the work of control refrigeration semiconductor guarantees that the substrate temperature of LED is no more than setting threshold.Circuit theory is seen Fig. 2.
The controlled joint temperature that just can effectively control LED of the substrate temperature of LED, thereby the life-span of assurance LED, because ambient temperature is lower, heat radiation better just can utilize the natural heat conduction of refrigeration semiconductor without the refrigeration semiconductor active refrigeration, dispels the heat during winter.
The LED lamp of present embodiment, control circuit can adopt microprocessor to realize, also can adopt comparator to realize.Temperature sensor and control circuit can also mainly be realized through thermistor, this kind scheme, and control circuit just is made up of simple switch, needs only when guaranteeing that substrate temperature is too high, makes refrigeration semiconductor energized both can.
What embodiment 2 and embodiment 1 were different is to have increased generating/refrigeration commutation circuit.Control circuit is controlled the mode of operation of refrigeration semiconductor according to the temperature data that records of temperature sensor through generating/refrigeration commutation circuit.When ambient temperature is very low, can sacrifice a part of heat sinking function, through the switching and the conversion of generating/refrigeration commutation circuit, the thermo-electric generation electric energy that refrigeration semiconductor produces is supplied with the led drive circuit after treatment.Circuit theory is seen Fig. 3.
The active heat removal formula LED electricity-saving lamp that the present invention proposes though refrigeration semiconductor needs certain energy consumption, is compared the whole energy effect of LED illumination, still very little a part of energy consumption, and the total energy consumption of light fixture is still very energy-conservation.The present invention has solved LED through temperature controlled refrigeration semiconductor because the bad light decay problem of heat radiation; Improved the luminance in later stage; Offset the energy consumption of refrigeration semiconductor, calculated from total life cycle, not only few power consumption is more energy-conservation than common LED lamp tool on the contrary; Improve the life-span of LED light fixture greatly, expanded the application scenario of LED lamp.
Claims (3)
1. active heat removal formula LED lamp; Comprise led chip, led drive circuit and substrate; It is characterized in that described active heat removal formula LED lamp also comprises refrigeration semiconductor, radiator, control circuit and temperature sensor, refrigeration semiconductor is arranged between substrate and the radiator; Its one side links to each other with substrate, and another side links to each other with radiator; Temperature sensor is arranged on the substrate; Its measuring-signal is admitted to control circuit; Control circuit is controlled whether energized of refrigeration semiconductor according to the measuring-signal of temperature sensor, if energized, then the mode of operation of refrigeration semiconductor is a refrigeration mode; If deenergization, then the mode of operation of refrigeration semiconductor is the pattern that opens circuit.
2. active heat removal formula LED lamp according to claim 1; It is characterized in that; Described LED lamp also comprises heat-barrier material; The position that does not link to each other through refrigeration semiconductor between substrate and the radiator is not in contact with one another, but is filled with heat-barrier material, makes only to exist refrigeration semiconductor as passage of heat between substrate and the radiator.
3. active heat removal formula LED lamp according to claim 1; It is characterized in that; Described LED lamp; Also comprise generating/refrigeration commutation circuit, control circuit is a kind of in following three kinds of patterns according to the measuring-signal of temperature sensor and the mode of operation through generating/refrigeration commutation circuit control refrigeration semiconductor: the pattern that opens circuit, refrigeration mode and power generation mode; If power generation mode, the thermo-electric generation electric energy that refrigeration semiconductor produces is through generating/refrigeration commutation circuit treatment and supplied led drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104133174A CN102438371A (en) | 2011-12-13 | 2011-12-13 | Active heat dissipation type LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104133174A CN102438371A (en) | 2011-12-13 | 2011-12-13 | Active heat dissipation type LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102438371A true CN102438371A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104133174A Pending CN102438371A (en) | 2011-12-13 | 2011-12-13 | Active heat dissipation type LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102438371A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165290A (en) * | 2014-07-25 | 2014-11-26 | 深圳市光之谷新材料科技有限公司 | LED lamp |
| CN104896380A (en) * | 2015-06-15 | 2015-09-09 | 遵义市义阳光电有限公司 | Powerful-cooling LED (light-emitting diode) lamp |
| WO2015169198A1 (en) * | 2014-05-07 | 2015-11-12 | 彭依彧 | Led light source module |
| CN106102213A (en) * | 2016-06-12 | 2016-11-09 | 江苏工程职业技术学院 | A kind of solar energy garden lamp and control method thereof |
| CN109185842A (en) * | 2018-09-29 | 2019-01-11 | 黄河科技学院 | A kind of driving power and heat dissipating method with overheating protection function |
| CN109723995A (en) * | 2017-10-31 | 2019-05-07 | 王龙 | A kind of headlight for medical use |
| CN114607989A (en) * | 2021-02-05 | 2022-06-10 | 睿励科学仪器（上海）有限公司 | Device for radiating light source |
| CN114838299A (en) * | 2022-05-23 | 2022-08-02 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | Metal mine is opened and is adopted lighting device |
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| CN101719490A (en) * | 2009-10-23 | 2010-06-02 | 广东昭信光电科技有限公司 | Multifunctional LED encapsulating structure |
| CN201662346U (en) * | 2009-10-15 | 2010-12-01 | 苏州中泽光电科技有限公司 | Telescopic heat pipe radiator and LED lamp thereof |
| CN102005447A (en) * | 2010-09-01 | 2011-04-06 | 杨东佐 | LED integrated structure with cooling device |
| CN201820758U (en) * | 2010-09-15 | 2011-05-04 | 杨东佐 | A kind of LED integrated structure with cooling device |
| CN102110760A (en) * | 2009-12-23 | 2011-06-29 | 海力士半导体有限公司 | Led package and rfid system including the same |
| CN202327982U (en) * | 2011-12-13 | 2012-07-11 | 山大鲁能信息科技有限公司 | Active radiating type light emitting diode (LED) energy-saving lamp |
-
2011
- 2011-12-13 CN CN2011104133174A patent/CN102438371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201662346U (en) * | 2009-10-15 | 2010-12-01 | 苏州中泽光电科技有限公司 | Telescopic heat pipe radiator and LED lamp thereof |
| CN101719490A (en) * | 2009-10-23 | 2010-06-02 | 广东昭信光电科技有限公司 | Multifunctional LED encapsulating structure |
| CN102110760A (en) * | 2009-12-23 | 2011-06-29 | 海力士半导体有限公司 | Led package and rfid system including the same |
| CN102005447A (en) * | 2010-09-01 | 2011-04-06 | 杨东佐 | LED integrated structure with cooling device |
| CN201820758U (en) * | 2010-09-15 | 2011-05-04 | 杨东佐 | A kind of LED integrated structure with cooling device |
| CN202327982U (en) * | 2011-12-13 | 2012-07-11 | 山大鲁能信息科技有限公司 | Active radiating type light emitting diode (LED) energy-saving lamp |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015169198A1 (en) * | 2014-05-07 | 2015-11-12 | 彭依彧 | Led light source module |
| CN104165290A (en) * | 2014-07-25 | 2014-11-26 | 深圳市光之谷新材料科技有限公司 | LED lamp |
| CN104896380A (en) * | 2015-06-15 | 2015-09-09 | 遵义市义阳光电有限公司 | Powerful-cooling LED (light-emitting diode) lamp |
| CN106102213A (en) * | 2016-06-12 | 2016-11-09 | 江苏工程职业技术学院 | A kind of solar energy garden lamp and control method thereof |
| CN109723995A (en) * | 2017-10-31 | 2019-05-07 | 王龙 | A kind of headlight for medical use |
| CN109185842A (en) * | 2018-09-29 | 2019-01-11 | 黄河科技学院 | A kind of driving power and heat dissipating method with overheating protection function |
| CN114607989A (en) * | 2021-02-05 | 2022-06-10 | 睿励科学仪器（上海）有限公司 | Device for radiating light source |
| CN114838299A (en) * | 2022-05-23 | 2022-08-02 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | Metal mine is opened and is adopted lighting device |
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Application publication date: 20120502 |