CN108040392A - LED light device - Google Patents

LED light device Download PDF

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Publication number
CN108040392A
CN108040392A CN201711279088.5A CN201711279088A CN108040392A CN 108040392 A CN108040392 A CN 108040392A CN 201711279088 A CN201711279088 A CN 201711279088A CN 108040392 A CN108040392 A CN 108040392A
Authority
CN
China
Prior art keywords
light
radiator
illumination
led light
led
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.)
Pending
Application number
CN201711279088.5A
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Chinese (zh)
Inventor
付永智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201711279088.5A priority Critical patent/CN108040392A/en
Publication of CN108040392A publication Critical patent/CN108040392A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
    • 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
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/57—Cooling arrangements using liquid coolants characterised by control arrangements
    • 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
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/59—Cooling arrangements using liquid coolants with forced flow of the coolant
    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention discloses a kind of LED light device, for forming the lighting environment with optimal eyeshield, it includes ambient light illumination sensor, illuminator, radiator and controller, wherein, illuminator includes the first light source and secondary light source, radiator has different operating modes and different heat-sinking capabilities, controller includes dimming section, storage part, judging part and enforcement division, dimming section is used for the colour temperature for adjusting the irradiation light of LED light device, storage part has the light modulation toning curve of the brightness adjustment control mode for regulation dimming section, judging part is used to judge whether the luminous efficiency of illuminator is less than setting value, enforcement division is used for the operating mode for selecting radiator.The present invention can automatically adjust the illumination and colour temperature of the irradiation light of LED light device, form the lighting environment with optimal eyeshield, and can automatically regulate thermal diffusivity according to lighting parameter, extend the service life of LED light device.

Description

LED light device
Technical field
The invention belongs to LED field, more particularly to a kind of LED light device.
Background technology
The LED that highlight illumination is carried out with low electric power is increasingly used on vehicle, single by being carried out to multiple LED Control solely is lighted, the light distribution and illumination of irradiation light can be adjusted.A variety of lighting devices exist in the prior art can be to light The output ratio in source is controlled, and the illumination and colour temperature of irradiation light can be adjusted.Although this LED light device can be certainly Dynamic ground intelligently adjusts irradiation light, but its radiator does not accomplish matching automation or intelligence but.
The content of the invention
To solve the above problems, the present invention provides a kind of LED light device, for forming the photograph with optimal eyeshield Bright environment, it is characterised in that including ambient light illumination sensor, the LED light device adjusts irradiation light according to ambient light illumination Illumination, further includes illuminator, radiator and controller, wherein,
Illuminator includes the first light source and secondary light source, and the first light source is the white light of 4500~5500K of injection colour temperature White LED, secondary light source are the blue led for projecting blue light；
Radiator has multiple radiating fins being vertically arranged with illuminator, is equipped with the gap between radiating fin Heat conducting pipe, there is cooling media in heat conducting pipe, and controller controls the flow and/or flow velocity of cooling media, thus radiator has Different operating modes and different heat-sinking capabilities；
Controller includes dimming section, storage part, judging part and enforcement division, and dimming section is used for the first light source and secondary light source Output ratio be adjusted, so as to adjust the colour temperature of the irradiation light of LED light device；Storage part has for regulation dimming section The light modulation toning curve of brightness adjustment control mode, light modulation toning curve include characterizing the illumination under various colour temperatures and the relation of eyeshield The first curve, and characterization colour temperature and luminous efficiency relation the second curve；Judging part is used for according to light modulation toning curve Judge the luminous efficiency of the illuminator under current lighting environment and the magnitude relationship of setting value；Enforcement division is used for according to judging part Judging result, selects the operating mode of radiator；
During the LED light device work, first, the illumination that LED light device adjusts irradiation light according to ambient light illumination is First illumination；Then, storage part marks in the first curve using the first illumination as abscissa, using optimal eyeshield value as ordinate Intersection point, and compare and find out that colour temperature line nearest from the intersection point；Then, dimming section adjusts first with the color temperature value of the colour temperature line The output of light source and secondary light source is than being the first colour temperature so as to adjust the colour temperature of irradiation light；Finally, judging part is according to the second curve The luminous efficiency of the LED corresponding to the first colour temperature and the magnitude relationship of setting value are judged, if luminous efficiency is greater than or equal to the One setting value, then enforcement division control radiator is with normal mode operation, in the normal mode, the flow of cooling media and/or Flow velocity is controlled as 0, and radiator only radiates by radiating fin；If luminous efficiency is set in the first setting value and second Between value, then mean there is more electric energy to be converted into the thermal energy beyond luminous energy, enforcement division control radiator is negative with height at this time Lotus pattern works, and under high load capacity pattern, the flow and/or flow velocity of cooling media are controlled as the first value；If luminous efficiency Less than the second setting value, then mean there are more electric energy to be converted into the thermal energy beyond luminous energy, the heat dissipation dress of enforcement division control at this time Put and worked with pattern at full capacity, under pattern at full capacity, the flow and/or flow velocity of cooling media are controlled as second value.
Preferably, the LED light device is in-car reading lamp.
Preferably, the cooling media is cooling water or cooling oil or air.
Preferably, the second setting value<First setting value, 0<First value<Second value.
The present invention can automatically adjust the illumination and colour temperature of irradiation light, form the lighting environment with optimal eyeshield, and And thermal diffusivity can be automatically regulated according to lighting parameter, extend the service life of LED light device.
Brief description of the drawings
Fig. 1 shows the structure diagram of the application；
Fig. 2 shows the schematic diagram of the radiator of the application；
Fig. 3 shows the first curve of the application；
Fig. 4 shows the second curve of the application.
Embodiment
With reference to the accompanying drawings, the function that the structure of the system is described in detail and is realized.
As shown in Figure 1, LED light device, including ambient light illumination sensor 1, illuminator 2, radiator 3 and controller 4, It is the white light for projecting 4500~5500K of colour temperature that illuminator 2, which includes the first light source 2-1 and secondary light source 2-2, the first light source 2-1, White LED, secondary light source 2-2 be project blue light blue led；
As shown in Fig. 2, radiator 3 has multiple radiating fin 3-1 being vertically arranged with illuminator 2, radiating fin Between gap in be equipped with heat conducting pipe 3-2, have cooling media in heat conducting pipe, controller 4 controls the circulation status of cooling media, dissipates Thus thermal 3 has different operating modes and different heat-sinking capabilities；
Controller 4 includes dimming section 4-1, storage part 4-2, judging part 4-3 and enforcement division 4-4, and dimming section 4-1 is used for the The output ratio of one light source 2-1 and secondary light source 2-2 is adjusted, so as to adjust the colour temperature of the irradiation light of LED light device；Storage Portion 4-2 has the light modulation toning curve for the brightness adjustment control mode of regulation dimming section 4-1, and light modulation toning curve includes characterization respectively First curve of illumination and the relation of eyeshield under kind colour temperature, and the second of the relation of characterization colour temperature and luminous efficiency are bent Line；Judging part 4-3 is used for the luminous efficiency and setting value that the illuminator 2 under current lighting environment is judged according to light modulation toning curve Magnitude relationship；Enforcement division 4-4 is used for the judging result according to judging part 4-3, selects the operating mode of radiator 3；
With reference to Fig. 3 and Fig. 4, example goes out the operation principle of the LED light device：
First, LED light device is the first illumination according to the illumination that ambient light illumination adjusts irradiation light, is, for example, 750lx；So Afterwards, storage part marks intersection point using 750lx as abscissa, using optimal eyeshield value in the first curve as ordinate, from the intersection point Nearest is the colour temperature line of 6000K；Then, dimming section adjusts the output of the first light source and secondary light source with the color temperature value of 6000K Than being 6000K so as to adjust the colour temperature of irradiation light；Finally, the hair of LED of the judging part according to corresponding to the second curve judges 6000K The magnitude relationship of light efficiency and setting value, if luminous efficiency is greater than or equal to the first setting value (such as 95%), enforcement division Controlling radiator, in the normal mode, the flow and/or flow velocity of cooling media are controlled as 0, heat dissipation with normal mode operation Device only radiates by radiating fin；(such as if 85% arrive luminous efficiency between the first setting value and the second setting value Between 95%), then mean there is more electric energy to be converted into the thermal energy beyond luminous energy, enforcement division controls radiator with height at this time Load pattern works, and under high load capacity pattern, the flow and/or flow velocity of cooling media are controlled as the first value；If shine effect Rate is less than the second setting value (such as less than 85%), then means have more electric energy to be converted into the thermal energy beyond luminous energy, at this time Enforcement division controls radiator to work with pattern at full capacity, and under pattern at full capacity, the flow and/or flow velocity of cooling media are controlled It is made as second value.
One skilled in the art would recognize that without departing substantially from as the spirit and scope of the invention described in general manner, Various changes and/or modification can be carried out to the invention shown in each specific embodiment.Therefore, in terms of all For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent It is explicitely stated in claim or each embodiment here.

Claims (5)

1. a kind of LED light device, it is characterised in that including ambient light illumination sensor, it can be adjusted according to ambient light illumination shines Penetrate the illumination of light；Further include illuminator, radiator and controller.
2. a kind of LED light device, for forming the lighting environment with optimal eyeshield, it is characterised in that shone including environment Spend sensor, the LED light device according to ambient light illumination adjust irradiation light illumination, further include illuminator, radiator and Controller, wherein,
Illuminator includes the first light source and secondary light source, and the first light source is the white for the white light for projecting 4500~5500K of colour temperature LED, secondary light source are the blue led for projecting blue light；
Radiator has multiple radiating fins being vertically arranged with illuminator, and heat conduction is equipped with the gap between radiating fin Manage, there is cooling media in heat conducting pipe, controller controls the flow and/or flow velocity of cooling media, thus radiator has difference Operating mode and different heat-sinking capabilities；
Controller includes dimming section, storage part, judging part and enforcement division, and dimming section is used for the defeated of the first light source and secondary light source Go out than being adjusted, so as to adjust the colour temperature of the irradiation light of LED light device；Storage part has the light modulation for regulation dimming section The light modulation toning curve of control mode, light modulation toning curve include characterizing the of illumination under various colour temperatures and the relation of eyeshield One curve, and the second curve of the relation of characterization colour temperature and luminous efficiency；Judging part is used to be judged according to light modulation toning curve The luminous efficiency of illuminator and the magnitude relationship of setting value under current lighting environment；Enforcement division is used for the judgement according to judging part As a result, the operating mode of selection radiator；
During the LED light device work, first, LED light device is first according to the illumination that ambient light illumination adjusts irradiation light Illumination；Then, storage part marks friendship using the first illumination as abscissa, using optimal eyeshield value in the first curve as ordinate Point, and find out that colour temperature line nearest from the intersection point；Then, dimming section with the color temperature value of the colour temperature line adjust the first light source and The output of secondary light source is than being the first colour temperature so as to adjust the colour temperature of irradiation light；Finally, judging part judges according to the second curve The luminous efficiency of LED corresponding to color temperature and the magnitude relationship of setting value, if luminous efficiency is greater than or equal to the first setting Value, then enforcement division control radiator is with normal mode operation, in the normal mode, the flow and/or flow velocity quilt of cooling media Control as 0, radiator only radiates by radiating fin；If luminous efficiency the first setting value and the second setting value it Between, then mean there is more electric energy to be converted into the thermal energy beyond luminous energy, enforcement division controls radiator with high-duty die at this time Formula works, and under high load capacity pattern, the flow and/or flow velocity of cooling media are controlled as the first value；If luminous efficiency is less than Second setting value, then mean have more electric energy to be converted into the thermal energy beyond luminous energy, at this time enforcement division control radiator with Pattern works at full capacity, and under pattern at full capacity, the flow and/or flow velocity of cooling media are controlled as second value.
3. the LED light device as described in claim 1-2, it is characterised in that the LED light device is in-car reading Lamp.
4. the LED light device as described in claim 1-2, it is characterised in that the cooling media is cooling water or cooling oil Or air.
5. the LED light device as described in claim 1-2, it is characterised in that the second setting value<First setting value, 0<First Value<Second value.
CN201711279088.5A 2017-12-06 2017-12-06 LED light device Pending CN108040392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711279088.5A CN108040392A (en) 2017-12-06 2017-12-06 LED light device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711279088.5A CN108040392A (en) 2017-12-06 2017-12-06 LED light device

Publications (1)

Publication Number Publication Date
CN108040392A true CN108040392A (en) 2018-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711279088.5A Pending CN108040392A (en) 2017-12-06 2017-12-06 LED light device

Country Status (1)

Country Link
CN (1) CN108040392A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101280910A (en) * 2008-04-08 2008-10-08 深圳三升高科技股份有限公司 Heat radiating device of outdoor LED plate
CN202511055U (en) * 2012-03-14 2012-10-31 苏州创高电子有限公司 Light emitting diode (LED) lamp
CN103383089A (en) * 2012-05-02 2013-11-06 现代摩比斯株式会社 Automotive lighting device
CN104159354A (en) * 2013-05-13 2014-11-19 松下电器产业株式会社 Lighting device
CN106015981A (en) * 2016-05-24 2016-10-12 江苏天楹之光光电科技有限公司 High lighting effect LED lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101280910A (en) * 2008-04-08 2008-10-08 深圳三升高科技股份有限公司 Heat radiating device of outdoor LED plate
CN202511055U (en) * 2012-03-14 2012-10-31 苏州创高电子有限公司 Light emitting diode (LED) lamp
CN103383089A (en) * 2012-05-02 2013-11-06 现代摩比斯株式会社 Automotive lighting device
CN104159354A (en) * 2013-05-13 2014-11-19 松下电器产业株式会社 Lighting device
CN106015981A (en) * 2016-05-24 2016-10-12 江苏天楹之光光电科技有限公司 High lighting effect LED lamp

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Application publication date: 20180515