CN111720795A - Reflective auxiliary high beam module - Google Patents

Reflective auxiliary high beam module Download PDF

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Publication number
CN111720795A
CN111720795A CN202010744225.3A CN202010744225A CN111720795A CN 111720795 A CN111720795 A CN 111720795A CN 202010744225 A CN202010744225 A CN 202010744225A CN 111720795 A CN111720795 A CN 111720795A
Authority
CN
China
Prior art keywords
led
reflecting surface
reflector
beam module
high beam
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
CN202010744225.3A
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Chinese (zh)
Inventor
吴泽漭
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.)
SHANGHAI SUNLIGHT OPTO DEVICE CO Ltd
Original Assignee
SHANGHAI SUNLIGHT OPTO DEVICE CO Ltd
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 SHANGHAI SUNLIGHT OPTO DEVICE CO Ltd filed Critical SHANGHAI SUNLIGHT OPTO DEVICE CO Ltd
Priority to CN202010744225.3A priority Critical patent/CN111720795A/en
Publication of CN111720795A publication Critical patent/CN111720795A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • 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]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention relates to a reflective auxiliary high beam module, which comprises a radiator, a radiating fan and at least one reflector group, wherein the reflector group comprises a single reflector, a high-power LED and an LED light source plate; the heat radiation fan is fixed on one side of the radiator, the LED light source plate and the single reflector are respectively fixed on the radiator, the high-power LED is fixed on the LED light source plate, the reflecting surface of the single reflector is a paraboloid or a free curved surface, and the focus of the reflecting surface of the single reflector is the light emitting center of the high-power LED; the emergent angle of the light of the high-power LED through the reflecting surface is as follows: the half angle of the region of 10% of the peak central light intensity is less than or equal to 2 deg.

Description

Reflective auxiliary high beam module
Technical Field
The invention relates to an automobile lamp module, in particular to a reflective auxiliary high beam module.
Background
In recent years, with the increase of automobile inventory and the increasing popularization of ADAS systems, the smart pixel type high beam system as a core component of the ADAS system has an inherent defect that light rays are relatively dispersed, the irradiation range is relatively wide, but the central light intensity is relatively weak, the irradiation distance is relatively short, and the central irradiation distance is usually between 100 plus 200m, that is, the irradiation distance of the driving road of the vehicle is 100 plus 200m, which is particularly prominent on highways, rural roads and other roads without road illumination.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a reflection type auxiliary high beam module which is used for assisting high beams, mainly irradiating areas beyond 200 meters and providing long-distance illumination on a highway for a driver so that vehicles can run more safely and reliably.
The invention is realized by the following steps: a reflective auxiliary high beam module comprises a radiator, a heat radiation fan and at least one reflector group, wherein the reflector group comprises a single reflector, a high-power LED and an LED light source plate; the heat radiation fan is fixed on one side of the radiator, the LED light source plate and the single reflector are respectively fixed on the radiator, the high-power LED is fixed on the LED light source plate, the reflecting surface of the single reflector is a paraboloid or a free curved surface, and the focus of the reflecting surface of the single reflector is the light emitting center of the high-power LED; the emergent angle of the light of the high-power LED through the reflecting surface is as follows: the half angle of the region of 10% of the peak central light intensity is less than or equal to 2 deg.
The included angle between the optical axis surface of the single reflector and the optical axis of the high-power LED is 65-90 degrees.
The reflecting surface of the single reflector is a local multi-parabolic free reflecting surface.
The light-emitting area of the high-power LED is 0.5-2 mm 2 (ii) a The luminous intensity of the high-power LED in unit area is 200-600 lm/mm2。
The reflecting surface is an aluminized reflecting surface.
The LED light source board is provided with an LED Bin resistor and a temperature sensor.
The radiator is provided with radiating fins or radiating columns, and the radiating fan is fixed on one sides of the radiating fins or the radiating columns.
The number of the reflector groups is 1-3, and the 2-3 reflector groups are arranged in the left-right direction or in the up-down direction to form an array.
And a heat dissipation medium layer is arranged between the LED light source plate and the radiator.
The invention has the beneficial effects that: the invention is used as an auxiliary lighting system, and the single reflector reflects the light of the high-power LED to form approximately parallel light through the reflecting surface of the single reflector, thereby realizing long-distance irradiation, supplementing an intelligent pixel type lighting system, just supplementing the problem that the intelligent pixel type lighting system is not far in irradiation, and increasing the illumination distance of a road to more than 400 meters. The invention can greatly improve the driving safety of driving on expressways and rural roads, and is very practical and suitable for areas with few vehicles on western roads.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic diagram of the principle of light reflection of the high-power LED of the present invention by a single reflector reflective surface.
FIG. 3 is a schematic diagram of the angular relationship between the optical axis of a high power LED of the present invention and the optical axial plane of a single reflector.
Fig. 4 is a schematic structural diagram of a first embodiment of the present invention.
Wherein: 1. an LED light source plate; 2. a heat sink; 3. a heat radiation fan; 4. a single mirror; 5. a high power LED; 6. a heat dissipating fin; 7. a reflective surface; 8. a light axis surface; 9. an optical axis.
Detailed Description
According to the attached fig. 1-3, the present invention comprises a heat sink 2, a heat dissipation fan 3 and at least one set of reflector sets comprising a single reflector 4, a high power LED5 and an LED light source board 1. The number of the reflector groupsIs composed of1~3Group ofThe 2-3 groups of reflector groups are arranged left and right or up and down to form an array. The reflector sets can be used independently, or a plurality of reflector sets can be combined to form an array to be used together, and the plurality of reflector sets are linked and simultaneously lightened or simultaneously extinguished when forming the array.
The radiator 2 is provided with radiating fins 6 or radiating columns, and the radiating fan 3 is fixed on one sides of the radiating fins 6 or the radiating columns. The heat generated by the high-power LED5 is transmitted to the radiator 2 through the LED light source plate 1, and the wind power generated by the cooling fan 3 is used for improving the air flow passing through the cooling fins 6 or the cooling column, improving the cooling efficiency and providing a proper working temperature for the high-power LED 5.
The LED light source board 1 and the single reflector 4 are respectively fixed on the radiator 2, the high-power LED5 is fixed on the LED light source board 1, the reflecting surface 7 of the single reflector 4 is a paraboloid or a free-form surface, and preferably, the reflecting surface 7 of the single reflector 4 is a local multi-paraboloid free-form reflecting surface. The reflecting surface 7 is an aluminized reflecting surface. The focus of the reflecting surface 7 of the single reflector 4 is the light-emitting center of the high-power LED 5; the exit angle of the light of the high-power LED5 through the reflecting surface 7 is: the half angle of the 10% area of peak central light intensity of the high power LED5 is less than or equal to 2 °. As shown in FIG. 2, the first incident light ray A of the high power LED51Reflected by the reflecting surface 7 to form a first emergent light ray A2Second incident light B of the high-power LED51Reflected by the reflecting surface 7 to form a second emergent light beam B2The reflection of a light ray on a reflecting surface follows the laws of spatial reflection of a light ray. The first emitted light ray A2And the second emitted light B2The included angle a is 0-2 degrees. A beam similar to laser is formed, and the high-energy beam is used as auxiliary high beam.
According to fig. 3, an included angle b between an optical axis surface 8 of the single reflector 4 and an optical axis 9 of the high-power LED5 is 65-90 degrees, preferably 78 degrees; the smaller mounting angle can improve the light source utilization rate of the high-power LED 5.
The light emitting area of the high-power LED5 is 0.5-2 mm2Preferably 1.5 mm2(ii) a The luminous intensity of the high-power LED5 in unit area is 200-600 lm/mm2Preferably 500 lm/mm2. The LED light source board 1 is provided with an LED Bin resistor and a temperature sensor, and the LED Bin resistor is used for ensuring the light intensity consistency of the reflector group. The temperature sensor is used for ensuring that the high-power LED5 cannot be damaged due to overhigh temperature in use and feeding back the temperature signal to the controller. And a heat dissipation medium layer is arranged between the LED light source plate 1 and the heat radiator 2.
The first embodiment is as follows:
referring to fig. 4, in this embodiment, the number of the mirror groups is 2, the mirror groups are arranged in a left-right manner, 2 mirror groups are respectively fixed on the heat sink 2, and the rest structures are as described above.

Claims (9)

1. The utility model provides a supplementary high beam module of reflective which characterized in that: the LED lamp comprises a radiator, a radiating fan and at least one reflector group, wherein the reflector group comprises a single reflector, a high-power LED and an LED light source plate; the heat radiation fan is fixed on one side of the radiator, the LED light source plate and the single reflector are respectively fixed on the radiator, the high-power LED is fixed on the LED light source plate, the reflecting surface of the single reflector is a paraboloid or a free curved surface, and the focus of the reflecting surface of the single reflector is the light emitting center of the high-power LED; the emergent angle of the light of the high-power LED through the reflecting surface is as follows: the half angle of the region of 10% of the peak central light intensity is less than or equal to 2 deg.
2. The reflective auxiliary high beam module of claim 1, wherein: the included angle between the optical axis surface of the single reflector and the optical axis of the high-power LED is 65-90 degrees.
3. The reflective auxiliary high beam module of claim 1, wherein: the reflecting surface of the single reflector is a local multi-parabolic free reflecting surface.
4. The reflective auxiliary high beam module of claim 1, wherein: the light-emitting area of the high-power LED is 0.5-2 mm2(ii) a The luminous intensity of the high-power LED in unit area is 200-600 lm/mm2。
5. The reflective auxiliary high beam module of claim 1, wherein: the reflecting surface is an aluminized reflecting surface.
6. The reflective auxiliary high beam module of claim 1, wherein: the LED light source board is provided with an LED Bin resistor and a temperature sensor.
7. The reflective auxiliary high beam module of claim 1, wherein: the radiator is provided with radiating fins or radiating columns, and the radiating fan is fixed on one sides of the radiating fins or the radiating columns.
8. The reflective auxiliary high beam module of claim 1, wherein: the number of the reflector groups is 1-3, and the 2-3 reflector groups are arranged in the left-right direction or in the up-down direction to form an array.
9. The reflective auxiliary high beam module of claim 1, wherein: and a heat dissipation medium layer is arranged between the LED light source plate and the radiator.
CN202010744225.3A 2020-07-29 2020-07-29 Reflective auxiliary high beam module Pending CN111720795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010744225.3A CN111720795A (en) 2020-07-29 2020-07-29 Reflective auxiliary high beam module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010744225.3A CN111720795A (en) 2020-07-29 2020-07-29 Reflective auxiliary high beam module

Publications (1)

Publication Number Publication Date
CN111720795A true CN111720795A (en) 2020-09-29

Family

ID=72574086

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010744225.3A Pending CN111720795A (en) 2020-07-29 2020-07-29 Reflective auxiliary high beam module

Country Status (1)

Country Link
CN (1) CN111720795A (en)

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