CN113339749A - Small-caliber high beam unit and assembly thereof - Google Patents
Small-caliber high beam unit and assembly thereof Download PDFInfo
- Publication number
- CN113339749A CN113339749A CN202110609673.7A CN202110609673A CN113339749A CN 113339749 A CN113339749 A CN 113339749A CN 202110609673 A CN202110609673 A CN 202110609673A CN 113339749 A CN113339749 A CN 113339749A
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- Prior art keywords
- lens
- small
- caliber high
- high beam
- beam unit
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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
- 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]
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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
- 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]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
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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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
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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
- 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
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- 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
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- 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]
Abstract
The invention discloses a small-caliber high beam unit and a component thereof.A light source module and a light distribution lens group of an LED are sequentially arranged along the direction of an optical axis from a light source, a PCB is arranged in a radiator, an LED chip is arranged at one side of the PCB, the horizontal focal power of a first lens is larger than that of a vertical direction, the horizontal focal power of the outer surface of a second lens is 0, the second lens covers the first lens, the outer surface of the second lens is a cylindrical surface or a Nerphy surface, the first lens and the second lens are made of glass or plastic, the structure has very small overall dimension, meanwhile, the utilization rate of light is greatly improved, the brightness is higher, the lighting effect is improved, the power of the LED chip is reduced, the burden of heat dissipation of a car lamp is lightened, the service life of the car lamp is prolonged, and the free space of the design of the car lamp is larger.
Description
Technical Field
The invention relates to the technical field of automobile illumination, in particular to a small-caliber high beam unit and a component thereof.
Background
The LED automobile high beam which is common on the market at present is in an LED + reflector form and an LED + single lens form, the two forms have low light utilization rate, especially LED edge light can not be well converged, some stray light is generated to influence visual effect, the light utilization rate is low, power can only be increased for meeting lighting effect, energy consumption is increased, the temperature of the LED is increased due to the increase of the power, the heat dissipation burden of the automobile lamp is increased, the service life of the automobile lamp is directly influenced, driving safety is endangered, the LED high beam of the two forms has large structural size, and the trend that the automobile lamp is designed towards streamline, simple and compact shapes in the future is hindered.
Disclosure of Invention
The invention aims to provide a small-caliber high beam unit and a component thereof, and aims to solve the technical problems that in the prior art, the LED automobile high beam has low light utilization rate and poor lighting effect, the temperature of an LED is increased due to power increase, the heat dissipation burden of an automobile lamp is increased, the service life of the automobile lamp is directly influenced, the driving safety is endangered, and the design space of the automobile lamp is limited.
In order to achieve the above object, the small-caliber high beam unit adopted by the present invention is composed of an LED light source module and a light distribution lens group, wherein the LED light source module and the light distribution lens group are sequentially arranged along an optical axis direction from a light source, the LED light source module is composed of a heat sink, a PCB board and an LED chip, the PCB board is disposed inside the heat sink, the LED chip is disposed on one side of the PCB board, the light distribution lens group is composed of a first lens and a second lens, a horizontal focal power of the first lens is greater than a vertical focal power, a horizontal focal power of an outer surface of the second lens is 0, and the second lens covers the first lens.
The first lens and the second lens are any one of a spherical lens, an aspheric plano-convex lens, an aspheric biconvex lens, an aspheric meniscus lens and a cylindrical lens.
The outer surface of the second lens is a cylindrical surface or a Nefel surface.
The distance between the light emitting surface of the LED chip and the incident surface of the first lens is 0.3-2 mm.
Wherein the first lens and the second lens are made of glass or plastic.
The invention further provides a small-caliber high beam assembly which comprises a plurality of small-caliber high beam units, wherein the small-caliber high beam units are freely arranged and combined.
Wherein, the appearance of each small-caliber high beam unit is rectangular or circular.
The shape of the light spot irradiated by each small-caliber high beam unit is human eye-shaped, circular or rectangular.
And each small-caliber high beam unit is used for carrying out illumination test on a standard light distribution test screen of 25m, and the maximum illumination is 35lx or more under the LED power of 3 watts.
The invention has the beneficial effects that: the LED chip is fixedly connected with the PCB and is positioned on one side of the PCB, the PCB is a fixing part of the LED chip, a circuit is arranged in the PCB, the PCB provides a power supply path and a heat dissipation effect for the LED chip, the LED chip is ensured to be lightened and used for a long time, the LED chip is electrified to emit light, the first lens is arranged on one side of the LED chip along the light emitting direction, the light emitted by the LED chip irradiates the first lens, the first lens carries out first light distribution on the light, collects the light as much as possible and plays a role of converging the light, the second lens is arranged on the right side of the first lens along the optical axis direction from a light source, carries out second light distribution on the light and is matched with the first lens for use, the light can be distributed to an area needing illumination, and sufficient illumination is provided for night driving, the lighting effect of car light has been satisfied to and the rule requirement of car light, the second lens with the connection can be dismantled to the radiator, makes the radiator provides the heat dissipation for this unit, has guaranteed the reliability of product, has improved the life of product, and when making structure overall dimension very little through above structure setting, the utilization ratio of light promotes by a wide margin, and luminance is higher, has improved the illuminating effect, greatly reduced the power of LED chip when fully satisfying the lighting demand, has alleviateed the radiating burden of car light, has prolonged the life of car light.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic external structural view of a small-caliber high beam unit according to the present invention.
Fig. 2 is a schematic diagram of the operation of a small-caliber high beam unit according to the present invention.
Fig. 3 is a structural cross-sectional view of the second lens of the present invention, which is a fresnel lens.
Fig. 4 is a working principle diagram of the second lens of the present invention being a fresnel lens.
100-small-caliber high beam unit, 1-LED chip, 2-first lens, 3-second lens, 4-PCB board, 5-radiator, 6-LED light source module, 7-light distribution lens group.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 4, the invention provides a small-caliber high beam unit 100, which is composed of an LED light source module 6 and a light distribution lens group 7, wherein the LED light source module 6 and the light distribution lens group 7 are sequentially arranged along an optical axis direction from a light source, the LED light source module 6 is composed of a heat sink 5, a PCB 4 and an LED chip 1, the PCB 4 is arranged inside the heat sink 5, the LED chip 1 is arranged on one side of the PCB 4, the light distribution lens group 7 is composed of a first lens 2 and a second lens 3, the horizontal focal power of the first lens 2 is greater than the vertical focal power, the horizontal focal power of the outer surface of the second lens 3 is 0, and the second lens 3 covers the first lens 2.
In this embodiment, the LED chip 1 is fixedly connected to the PCB 4 and is located on one side of the PCB 4, the PCB 4 is a fixing member of the LED chip 1, a circuit is disposed inside the PCB 4, the PCB 4 provides a power supply path and a heat dissipation function for the LED chip 1, so as to ensure lighting and long-term use of the LED chip 1, the LED chip 1 is powered on to emit light, the first lens 2 is disposed on one side of the LED chip 1 along a light emitting direction, light emitted from the LED chip 1 is irradiated on the first lens 2, the first lens 2 performs first light distribution on the light, collects the light as much as possible, and performs light gathering, the second lens 3 is disposed on the right side of the first lens 2 along the optical axis direction from a light source, the second lens 3 performs second light distribution on the light, and is used in cooperation with the first lens 2, can distribute the region that needs the illumination with light, provide sufficient illumination for traveling at night, satisfy the illuminating effect of car light to and the rule requirement of car light, second lens 3 with radiator 5 can dismantle the connection, makes radiator 5 provides the heat dissipation for this unit, has guaranteed the reliability of product, has improved the life of product, and when making structure overall dimension very little through above structure setting, the utilization ratio of light promotes by a wide margin, and luminance is higher, has improved illuminating effect, greatly reduced LED chip 1's power when fully satisfying the lighting demand, has alleviateed the radiating burden of car light, has prolonged the life of car light.
Further, the first lens 2 and the second lens 3 are each any one of a spherical lens, an aspheric plano-convex lens, an aspheric biconvex lens, an aspheric meniscus lens, and a cylindrical lens, and the first lens 2 and the second lens 3 are made of glass or plastic.
In this embodiment, through adopting two pure lens structural style, can be with the fine gathering of light to the position that needs the illumination is dispersed to the accuracy, and no longer uses the reflector, has saved the coating film technology of reflector in the production and processing, has reduced the cost of production, and more energy-concerving and environment-protective has improved the practicality of this device.
Furthermore, the outer surface of the second lens 3 is a cylindrical surface or a fresnel surface, and the distance between the light emitting surface of the LED chip 1 and the incident surface of the first lens 2 is 0.3-2 mm.
In this embodiment, the outer surface of the second lens 3 may be a cylindrical surface or a fresnel surface, and since the thickness of the center of the fresnel surface lens is thinner, the material is saved, so that shrinkage is less during injection molding, the surface shape precision can be controlled, the processing accuracy is ensured, the error between the actually produced product and the design is smaller, and the product effect is better.
Further, the number of the small-caliber high beam units 100 is plural, and the plural small-caliber high beam units 100 are freely arranged and combined.
In the present embodiment, the small-diameter high beam unit 100 is freely arranged and combined into various shapes, so as to provide a larger free space for the design of the vehicle lamp, and the emitted light spot can be in any shape.
Further, the outer shape of each of the small-caliber high beam units 100 is rectangular or circular.
In this embodiment, the shape of the small-caliber high beam unit 100 can be set according to the design requirement of the car lamp, and can be circular or rectangular, and the diversification of the shape structure enables the invention to meet the design requirement of different car lamps, and the practicability is higher.
Further, the shape of the light spot irradiated by each small-caliber high beam unit 100 is human eye-shaped, circular or rectangular.
In this embodiment, the facula that the product on the market shines out at present is mostly circular or rectangle, the facula of small-bore high beam unit 100 has the circular advantage of shining highly simultaneously and has the wide characteristic of rectangle facula radiation again, and has certain aesthetic feeling, and different facula shapes make the design of car light have bigger space, have improved the visual experience of car light.
Further, each of the small-caliber high beam units 100 performs a 25m standard light distribution test screen illuminance test, and the maximum illuminance is 35lx or more under the LED power of 3 watts.
In the present embodiment, a plurality of small-diameter high beam units 100 are arbitrarily stacked and combined, so that the illumination degree of the vehicle lamp is higher, the requirement for night driving can be satisfied, and the practicability is improved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a small-bore high beam unit, its characterized in that comprises LED light source module and grading lens group, LED light source module with the grading lens group is arranged along the optical axis direction order from the light source, LED light source module comprises radiator, PCB board, LED chip, the PCB board set up in the inside of radiator, the LED chip set up in one side of PCB board, the grading lens group comprises first lens and second lens, first lens horizontal direction focal power is greater than vertical direction focal power, second lens surface horizontal direction focal power is 0, just the second lens lid closes first lens.
2. The small-caliber high beam unit according to claim 1, wherein the first lens and the second lens are each any one of a spherical lens, an aspherical plano-convex lens, an aspherical biconvex lens, an aspherical meniscus lens, and a cylindrical lens.
3. The small-caliber high beam unit according to claim 1, wherein the outer surface of the second lens is a cylindrical surface or a fresnel surface.
4. The small-caliber high beam unit according to claim 1, wherein the distance between the light emitting surface of the LED chip and the incident surface of the first lens is 0.3-2 mm.
5. The small-caliber high beam unit according to claim 1, wherein the material of the first lens and the second lens is glass or plastic.
6. A small-caliber high beam assembly, comprising the small-caliber high beam unit according to any one of claims 1 to 3, wherein the number of the small-caliber high beam units is plural, and the plural small-caliber high beam units are freely arranged and combined.
7. The small-caliber high-beam assembly according to claim 6, wherein each small-caliber high-beam unit has a rectangular or circular outer shape.
8. The small-caliber high-beam assembly according to claim 7, wherein each small-caliber high-beam unit irradiates a spot having a shape of a human eye, a circle or a rectangle.
9. The small-caliber high beam assembly according to claim 8, wherein each small-caliber high beam unit performs a 25m standard light distribution test screen illuminance test, and the maximum illuminance at 3 w of LED power is 35lx or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609673.7A CN113339749A (en) | 2021-06-01 | 2021-06-01 | Small-caliber high beam unit and assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609673.7A CN113339749A (en) | 2021-06-01 | 2021-06-01 | Small-caliber high beam unit and assembly thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113339749A true CN113339749A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110609673.7A Pending CN113339749A (en) | 2021-06-01 | 2021-06-01 | Small-caliber high beam unit and assembly thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221647A (en) * | 2023-05-08 | 2023-06-06 | 常州星宇车灯股份有限公司 | Car light high beam lighting system, lighting module and vehicle |
-
2021
- 2021-06-01 CN CN202110609673.7A patent/CN113339749A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221647A (en) * | 2023-05-08 | 2023-06-06 | 常州星宇车灯股份有限公司 | Car light high beam lighting system, lighting module and vehicle |
| CN116221647B (en) * | 2023-05-08 | 2023-07-28 | 常州星宇车灯股份有限公司 | Car light high beam lighting system, lighting module and vehicle |
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