CN109812769B - LED car lamp and high beam module thereof - Google Patents
LED car lamp and high beam module thereof Download PDFInfo
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- CN109812769B CN109812769B CN201910124272.5A CN201910124272A CN109812769B CN 109812769 B CN109812769 B CN 109812769B CN 201910124272 A CN201910124272 A CN 201910124272A CN 109812769 B CN109812769 B CN 109812769B
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Abstract
The invention relates to an LED car lamp and a high beam module thereof, comprising an LED light source, a reflector and a radiator, wherein the reflecting surface of the reflector is divided into a first reflecting area, a second reflecting area and a third reflecting area, the first reflecting area, the second reflecting area and the third reflecting area are provided with high beam light distribution patterns, the second reflecting area is opposite to the LED light source, the first reflecting area is positioned at the left side of the second reflecting area, and the third reflecting area is positioned at the right side of the second reflecting area; the LED light source comprises a first LED light source and a second LED light source, and the focal point of the reflecting surface of the first reflecting area is positioned at the center of the first LED light source; the focal point of the reflecting surface of the third reflecting area is positioned at the center of the second LED light source; the focal point of the reflecting surface of the second reflecting area is positioned at the geometric centers of the first LED light source and the second LED light source. The invention can realize the numerical requirement of the high beam and the corresponding light type distribution under the condition of low cost, and solves the problem of high cost of the existing reflection type high beam.
Description
Technical Field
The invention relates to the technical field of automobile lamps, in particular to an LED (light-emitting diode) automobile lamp and a high beam module thereof.
Background
The rapid development of LED light source technology has LED to the overall evolution of vehicle lights, and with the development of technology, LED applications in automotive lighting are increasing, spanning from initial automotive interior lighting applications to wider applications such as headlamps and combination taillights. Particularly, due to the small size, the LEDs can be matched with abundant shape and line changes, so that the identification degree of the car lamp is improved, and the LED is designated to be used for a plurality of head lamp systems of middle-high-grade cars and matched with attractive appearance design. In the future, as technology and markets continue to advance, LEDs will be more widely used in the automotive lighting field, where the size and dimensions of a lamp module determine the shape and size of the entire lamp. At present, the form of forming the high beam by using the LED light source on the car lamp is mainly a reflective system, and the LED light source has the characteristics of high cost performance, high energy utilization rate and the like.
Conventional high beam reflection is usually achieved by a light source, a heat sink and a reflector. Since the regulation of high beam has high requirement on the maximum value of the central point, a four-chip or five-chip light source is usually required to realize, which occupies a large cost of the whole reflective system, if four or five single-chip LEDs are adopted to realize, the regulation of high beam, the requirement of light type and the pavement performance cannot be met.
Disclosure of Invention
The invention aims to provide a high beam module of an LED car lamp, which can realize the numerical requirement of high beam and corresponding light type distribution under the condition of low cost and is used for solving the problem of high cost of the existing reflection type high beam.
In order to achieve the above object, the present invention is provided with: the utility model provides a far-reaching headlamp module of LED car light, far-reaching headlamp module includes LED light source, speculum and radiator, the LED light source is installed on the radiator, its characterized in that:
the reflecting surface of the reflecting mirror is divided into a first reflecting area, a second reflecting area and a third reflecting area, the first reflecting area, the second reflecting area and the third reflecting area are provided with high beam light distribution patterns, the second reflecting area is opposite to the LED light source, the first reflecting area is positioned at the left side of the second reflecting area, and the third reflecting area is positioned at the right side of the second reflecting area;
the LED light source comprises a plurality of LEDs, and the focal point of the reflecting surface of the second reflecting area is positioned at the geometric center of the LEDs and is used for forming the widening and the outline of a high beam light type; the reflection surface focal point of the first reflection area is positioned at the geometric center of one LED on the left side of the LED light source, the reflection surface focal point of the third reflection area is positioned at the geometric center of one LED on the right side of the LED light source, and the first reflection area and the third reflection area are used for forming a high beam type central bright spot.
Further, according to the far-reaching module of the LED car lamp, the LED light source comprises a first LED light source and a second LED light source, and the focal point of the reflecting surface of the first reflecting area is positioned at the center of the first LED light source and is used for reflecting the light of the first LED light source so as to form a far-reaching central bright spot; the focal point of the reflecting surface of the third reflecting area is positioned at the center of the second LED light source and is used for reflecting the light rays of the second LED light source so as to form a high beam type central bright spot; the focal point of the reflecting surface of the second reflecting area is positioned at the geometric centers of the first LED light source and the second LED light source and is used for reflecting the light rays of the first LED light source and the second LED light source and forming the widening and contour part of the high beam light type.
Further, according to the far-reaching module of the LED car lamp, the first LED light source and the second LED light source are arranged in parallel.
Further, according to the far-reaching module of the LED car lamp, the first LED light source and the second LED light source are respectively formed by at least two LED light emitting chip packages.
Further, according to the far-reaching headlamp module of the LED car lamp, at least two LED light emitting chips of the first LED light source and the second LED light source are horizontally arranged, and the lateral distance between two adjacent LED light emitting chips of the first LED light source and the second LED light source is 0.5 mm-1.5 mm.
Further, according to the high beam module of the LED car lamp, the LED light source is fixed on the radiator through the screw.
Further, according to the high beam module of the LED car lamp, the LED light source is positioned above or below the reflector, and the reflecting surface of the reflector is opposite to the LED light source.
The invention also provides an LED car lamp adopting the high beam module.
The invention has the beneficial effects that: according to the invention, the preset up-down left-right diffusion angles are formed through the specific light type configuration of the three reflection areas, and the high beam light distribution pattern is finally formed, so that the numerical requirement of high beam and the corresponding light type distribution can be realized under the condition of low cost.
Drawings
FIG. 1 is a side view of a reflector, heat sink and LED;
FIG. 2 is a schematic illustration of light in a cross section centered on an LED light source;
FIG. 3 is a top view of two LEDs and a heat sink;
FIG. 4 is a top view of three LEDs and a heat sink;
FIG. 5 is a top view of four LEDs and a heat sink;
FIG. 6 is a schematic diagram of a spacing arrangement of two adjacent LEDs;
FIG. 7 is a front view of a mirror and a schematic view of different reflective regions;
FIG. 8 is a schematic view of the light pattern of the second reflective area 32 on the screen;
fig. 9 is a schematic view of the light pattern of the first reflective area 31 and the third reflective area 33 on the screen.
In the figure, 10-heat sink, 20-LED light source, 30-reflector, 21-first LED light source, 22-second LED light source, 31-first reflective region, 32-second reflective region, 33-third reflective region.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
The high beam module comprises an LED light source 20, a reflector 30 and a radiator 10, wherein the LED light source is arranged on a circuit board, the LED light source 20 is fixedly arranged on the radiator 10 through a screw and is positioned right above or right below the reflector, and the reflecting surface of the reflector covers the whole LED light source.
The reflecting mirror 30 is used for reflecting light from the LED light source 10, the reflecting surface of the reflecting mirror 30 is divided into a first reflecting area 31, a second reflecting area 32 and a third reflecting area 33, and the first reflecting area 31, the second reflecting area 32 and the third reflecting area 33 are provided with high beam light distribution patterns.
The second reflective area 32 is opposite to the LED light source 20, the first reflective area 31 is located at the left side of the second reflective area 32, and the third reflective area 33 is located at the right side of the second reflective area 32. The second reflection region 32 is responsible for the profile and broadening of the high beam light pattern, and the first and third reflection regions 31 and 33 are responsible for the central brightness of the light pattern.
The LED light source comprises a plurality of LEDs, and the focal point of the reflecting surface of the second reflecting area is positioned at the geometric center of the LEDs and is used for forming the widening and the outline of a high beam light type; the reflection surface focal point of the first reflection area is positioned at the geometric center of one LED on the left side of the LED light source, the reflection surface focal point of the third reflection area is positioned at the geometric center of one LED on the right side of the LED light source, and the first reflection area and the third reflection area are used for forming a high beam type central bright spot.
Embodiment one:
the LED light source 20 includes two LEDs, namely a first LED light source 21 and a second LED light source 22, and the focal point of the reflecting surface of the first reflecting area 31 is located at the center of the first LED light source 21, so as to reflect the light of the first LED light source 21 to form a high beam type central bright spot; the focal point of the reflecting surface of the third reflecting area 33 is located at the center of the second LED light source 22, so as to reflect the light of the second LED light source 22 to form a high beam type central bright spot, as shown in fig. 9; the focal point of the reflecting surface of the second reflecting area 32 is located at the geometric center of the first LED light source 21 and the second LED light source 22, so as to reflect the light rays of the first LED light source 21 and the second LED light source 22 and form the widening and contour part of the high beam pattern, as shown in fig. 8.
In this embodiment, the first LED light source 21 and the second LED light source 22 are each a single LED light source, and the first LED light source 21 and the second LED light source 22 are arranged in a horizontal direction (e.g., a vehicle width direction) to form an integral light-emitting light source. The first LED light source 21 and the second LED light source 22 are each composed of two LED light emitting chip packages, and the two LED light emitting chips are horizontally arranged.
The lateral spacing of the boundaries of the LED light emitting chips adjacent to the first LED light source 21 and the second LED light source 22 is 0.5mm to 1mm, preferably 1mm. In other embodiments, the first LED light source 21 and the second LED light source 22 may be composed of more than two LED light emitting chip packages.
Embodiment two:
as shown in fig. 4 to 5, in this embodiment, the LED light source may be composed of three or four LEDs, and the first LED light source 21 is on the left side, and the second LED light source 22 is on the right side.
The focal point of the reflecting surface of the second reflecting area is positioned in the geometric center of the whole LED light source and is used for forming the widening and the outline of a high beam light type; the focal point of the reflecting surface of the first reflecting area is positioned at the geometric center of the first LED light source 21 and reflects the light of the first LED light source 21; the focal point of the reflecting surface of the third reflecting area is located at the geometric center of the second LED light source 22, and reflects the light of the second LED light source 22, and the first reflecting area and the third reflecting area are used for forming a central bright spot of a high beam type.
In other embodiments, the LED light source may be composed of more than four LEDs, and similarly, the focal point of the reflecting surface of the second reflecting area is located at the geometric center of the entire LED light source, the focal point of the reflecting surface of the first reflecting area is located at the geometric center of the leftmost LED, and the focal point of the reflecting surface of the third reflecting area is located at the geometric center of the rightmost LED.
According to the invention, through the specific configuration of the LEDs and the three reflecting areas with different functions, the high beam light distribution pattern comprising the broadening and the bright spots is formed and irradiated to the front of the vehicle, so that the numerical requirement of high beam and the corresponding light type distribution can be realized under the condition of low cost.
Claims (4)
1. The utility model provides a far-reaching headlamp module of LED car light, far-reaching headlamp module includes LED light source, speculum and radiator, the LED light source is installed on the radiator, its characterized in that:
the reflecting surface of the reflecting mirror is divided into a first reflecting area, a second reflecting area and a third reflecting area, the first reflecting area, the second reflecting area and the third reflecting area are provided with high beam light distribution patterns, the second reflecting area is opposite to the LED light source, the first reflecting area is positioned at the left side of the second reflecting area, and the third reflecting area is positioned at the right side of the second reflecting area;
the LED light source comprises a plurality of LEDs, and the focal point of the reflecting surface of the second reflecting area is positioned at the geometric center of the LEDs and is used for forming the widening and the outline of a high beam light type; the focal point of the reflecting surface of the first reflecting area is positioned at the geometric center of one LED at the left side of the LED light source, the focal point of the reflecting surface of the third reflecting area is positioned at the geometric center of one LED at the right side of the LED light source, the first reflecting area and the third reflecting area are used for forming a high beam type central bright spot,
the LED light source comprises a first LED light source and a second LED light source, and the focal point of the reflecting surface of the first reflecting area is positioned at the center of the first LED light source and used for reflecting the light of the first LED light source so as to form a high beam type central bright spot; the focal point of the reflecting surface of the third reflecting area is positioned at the center of the second LED light source and is used for reflecting the light rays of the second LED light source so as to form a high beam type central bright spot; the focal point of the reflecting surface of the second reflecting area is positioned at the geometric centers of the first LED light source and the second LED light source and is used for reflecting the light rays of the first LED light source and the second LED light source and forming the widening and contour part of the high beam light type,
the first LED light source and the second LED light source are arranged in parallel and are respectively formed by at least two LED light emitting chip packages,
at least two LED light emitting chips of the first LED light source and the second LED light source are horizontally arranged, and the transverse distance between two adjacent LED light emitting chips of the first LED light source and the second LED light source is 0.5 mm-1.0 mm.
2. The high beam module of an LED lamp of claim 1, wherein the LED light source is fixed to the heat sink by screws.
3. The high beam module of an LED lamp according to claim 1, wherein the LED light source is located above or below a reflector, and a reflecting surface of the reflector is disposed opposite to the LED light source.
4. An LED vehicle lamp employing the high beam module according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124272.5A CN109812769B (en) | 2019-02-18 | 2019-02-18 | LED car lamp and high beam module thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910124272.5A CN109812769B (en) | 2019-02-18 | 2019-02-18 | LED car lamp and high beam module thereof |
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| CN109812769A CN109812769A (en) | 2019-05-28 |
| CN109812769B true CN109812769B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910124272.5A Active CN109812769B (en) | 2019-02-18 | 2019-02-18 | LED car lamp and high beam module thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111780049A (en) * | 2020-06-28 | 2020-10-16 | 华域视觉科技(上海)有限公司 | Vehicle reflecting mirror and dipped beam unit based on same |
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