A variable color temperature LED lens assembly for automotive lighting

Abstract

This utility model belongs to the field of lighting technology and discloses a variable color temperature LED lens assembly for automotive lighting. It includes a substrate, a reflector, a first LED particle, a second LED particle, a heat sink, a cooling fan, a light / dark cutoff plate, a solenoid valve, an adjustment mechanism, and a lens. The reflector is mounted on the right side of the substrate, and its inner side is coated with aluminum to reflect light to the left. The first and second LED particles are mounted parallel to each other on the upper surface of the substrate. The heat sink is mounted on the right side of the upper surface of the substrate, increasing its surface area to dissipate heat from the substrate. The cooling fan is mounted on the lower surface of the substrate, generating airflow around the heat sink to enhance its heat dissipation capacity. The light / dark cutoff plate is mounted on the left side wall of the substrate. This design makes it easier to see road conditions in inclement weather, significantly improving driver safety. It also allows for changing the illumination range, making it suitable for different road conditions and reducing driver eye fatigue.

Description

Technical Field

[0001] This utility model belongs to the field of lighting technology, specifically relating to a variable color temperature LED lens assembly for automotive lighting. Background Technology

[0002] Vehicle lights are tools for illuminating roads at night and for issuing various vehicle signals. Color temperature is a unit of measurement indicating the color components in light; the lower the color temperature, the warmer (redder); the higher the color temperature, the cooler (bluer). Common LED headlight color temperature specifications for automobiles include 3000K (yellow light), 4300K ​​(yellowish-white light, or warm white), and 6000K (white light).

[0003] LED particles with a color temperature of 3000K emit warm, yellow light with strong penetrating power. In poor weather conditions like rain and fog, this penetrating light helps us see the road more clearly. However, it's not as clear for identifying surrounding objects. As long as we can distinguish objects within a safe range and maintain a safe distance, it's sufficient. Therefore, warm light is suitable for use in rainy and foggy weather. LED particles with a color temperature of 6000K emit white light with weaker penetrating power, but it can clearly illuminate any object nearby, especially at night without streetlights, providing daylight-like illumination. Therefore, most automotive LED headlights now use this color temperature.

[0004] Shortcomings of existing technology:

[0005] Currently, when cars are driving in rainy or foggy weather, they cannot see the surrounding objects clearly and cannot see the road conditions more easily in bad weather, which poses a safety hazard. Moreover, the distance between the lens that changes the light and the reflector is fixed, so the illumination range cannot be changed and it cannot adapt to various road conditions. Utility Model Content

[0006] To address the problems mentioned in the background art, such as difficulty in seeing road conditions in adverse weather and the inability to change the illumination range, this utility model provides a variable color temperature LED lens assembly for automotive lighting.

[0007] This invention is implemented as follows: a variable color temperature LED lens assembly for automotive lighting includes a substrate, a reflector, a first LED particle, a second LED particle, a heat sink, a cooling fan, a light / dark cutoff plate, a solenoid valve, a distance adjustment mechanism, and a lens. The reflector is mounted on the right side of the substrate, and its inner side is plated with aluminum to reflect light to the left. The first and second LED particles are mounted parallel to each other on the upper surface of the substrate. The heat sink is mounted on the right side of the upper surface of the substrate, increasing its surface area to dissipate heat from the substrate. The cooling fan is mounted on the lower surface of the substrate, generating airflow around the heat sink to enhance its heat dissipation capacity. The light / dark cutoff plate is mounted on the left side wall of the substrate. The solenoid valve is mounted on the outer wall of the light / dark cutoff plate. The distance adjustment mechanism is located on the left side wall of the substrate. The lens is mounted on the left end of the distance adjustment mechanism.

[0008] Furthermore, the first LED particle and the second LED particle are respectively a 5-core 15W LED particle with a color temperature of 6000k and a 5-core 15W LED particle with a color temperature of 3000k.

[0009] Furthermore, the purpose is to adjust the lens position, change the lens's refraction of light, and thus adjust the illumination range. The adjustment mechanism includes a enclosure, a slide, an inner liner, a pin, and a drive assembly. The enclosure is installed on the left side wall of the substrate, and a slide is provided at the bottom end of the outer wall of the enclosure in the left-right direction. The inner liner is slidably inserted into the inner cavity of the enclosure, and the left side of the inner liner is installed with the lens. The pin is installed on the outer wall of the inner liner and passes through the inner cavity of the slide. The pin cooperates with the slide to prevent the inner liner from rotating. The drive assembly is installed at the bottom end of the outer wall of the enclosure.

[0010] Furthermore, the pin is cylindrical in shape.

[0011] Furthermore, the drive assembly includes a housing, a movable plate, a guide groove, a rack, a micro motor, and a gear. The housing is installed at the bottom of the outer wall of the enclosure. The movable plate is slidably inserted into the inner cavity of the housing. The outer wall of the movable plate has a guide groove, and the bottom end of the pin is inserted into the inner cavity of the guide groove. The rack is installed at the front end of the movable plate. The micro motor is installed on the lower surface of the housing. The gear is installed at the output end of the micro motor, and the gear meshes with the rack.

[0012] Furthermore, the guide grooves are inclinedly distributed on the outer wall of the moving plate.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: In normal weather conditions, the first LED chip is used for nighttime driving. In adverse rainy or foggy weather, the rain / fog mode switch can be activated, illuminating the second LED chip simultaneously. This provides stronger penetrating light, making it easier to see road conditions in bad weather. The micro-motor, gears, and racks work together to move the moving plate back and forth. When the guide groove presses against the pin, the inner liner moves to the right or left, changing the distance between the lens and the reflector to achieve zoom. Therefore, it makes it easier to see road conditions in bad weather, greatly improving driver safety. It also changes the illumination range, making it suitable for different road conditions and reducing driver fatigue. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the adjustable distance mechanism;

[0016] Figure 3 This is an exploded view of the driving component.

[0017] In the diagram: 1. Substrate; 2. Reflector; 3. First LED chip; 4. Second LED chip; 5. Heat sink; 6. Cooling fan; 7. Light / dark cutoff baffle; 8. Solenoid valve; 9. Adjustment mechanism; 10. Lens; 91. Enclosure; 92. Slide rail; 93. Liner; 94. Pin; 95. Drive assembly; 951. Box; 952. Moving plate; 953. Guide groove; 954. Rack; 955. Micro motor; 956. Gear. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Reference Figure 1-3This utility model provides the following technical solution: A variable color temperature LED lens assembly for automotive lighting, comprising a substrate 1, a reflector 2 mounted on the right side of the substrate 1, the reflector 2 being arc-shaped and having an aluminum-plated inner surface, the light is reflected and illuminated to the left by the arc-shaped reflective surface of the reflector 2, a first LED particle 3 and a second LED particle 4 are mounted parallel to each other on the upper surface of the substrate 1, which emit light when energized for automotive lighting, a heat sink 5 is mounted on the upper surface of the substrate 1 outside the reflector 2, and a cooling fan 6 is mounted on the lower surface of the substrate 1, the cooling fan 6 increases the airflow around the heat sink 5, the high airflow velocity carries away the heat from the surface of the heat sink 5, and cools the first LED particle 3 and the second LED particle 4 on the substrate 1, a light cut-off baffle 7 is mounted on the left side wall of the substrate 1, the light cut-off baffle 7 can move up and down to adjust the light area, a solenoid valve 8 is mounted on the outer wall of the light cut-off baffle 7, a distance adjustment mechanism 9 is mounted on the left side wall of the substrate 1, and a lens 10 is mounted on the left side wall of the distance adjustment mechanism 9, the lens 10 refracts the light, making the light converge and parallel, and increasing the illumination distance.

[0020] As a preferred option, the first LED particle 3 and the second LED particle 4 are respectively a 5-core 15W LED particle with a color temperature of 6000k and a 5-core 15W LED particle with a color temperature of 3000k. The 6000K LED particle is used for normal weather conditions at night. In bad rainy or foggy weather, the rain and fog mode switch can be turned on, and the 3000K LED particle will light up at the same time, providing stronger penetrating light. This makes it easier for us to see the road conditions in bad weather, greatly improving the safety of the driver.

[0021] As a preferred embodiment, the adjusting mechanism 9 further includes a enclosure 91 installed on the left side wall of the substrate 1. A slide 92 is provided at the bottom of the outer wall of the enclosure 91 in the left-right direction. An inner liner 93 that can slide left and right is inserted into the inner cavity of the enclosure 91. A pin 94 that passes through the slide 92 is installed on the outer wall of the inner liner 93. The inner liner 93 is prevented from rotating by limiting the pin 94 by the slide 92. A drive assembly 95 is installed at the bottom of the outer wall of the enclosure 91.

[0022] As a preferred embodiment, the drive assembly 95 further includes a housing 951 installed at the bottom of the outer wall of the enclosure 91. A movable plate 952 capable of sliding back and forth is inserted into the inner cavity of the housing 951. A guide groove 953 is formed on the outer wall of the movable plate 952. A pin 94, cylindrical in shape, is inserted into the inner cavity of the guide groove 953 and can slide smoothly within the guide groove 953 using its curved surface. A micro motor 955 is installed at the bottom of the housing 951, and the micro motor 955 outputs... The end is equipped with a gear 956 that meshes with the rack 954. The guide groove 953 is inclinedly distributed on the outer wall of the moving plate 952. When the micro motor 955 drives the gear 956 to rotate clockwise or counterclockwise, the moving plate 952 moves back and forth through the transmission between the gear 956 and the rack 954. This causes the inner wall of the guide groove 953 to press the pin 94 to the right or left, thereby moving the inner liner 93 to the right or left and adjusting the distance between the lens 10 and the reflector 2 to achieve the purpose of zooming.

[0023] The working principle of this utility model is as follows:

[0024] Step 1: When driving at night in normal weather, use the first LED particle 3. Although its penetration is not strong, it can clearly illuminate any object next to you for nighttime lighting in normal weather. When there is bad rain or fog, you can turn on the rain and fog mode switch, which will simultaneously light up the second LED particle 4, which has stronger penetrating light. In bad weather, it is easier for us to see the road conditions, greatly improving the safety of the driver.

[0025] Step 2: The heat generated by the first LED particle 3 and the second LED particle 4 is transferred to the substrate 1 through thermal conduction, and then from the substrate 1 to the heat sink 5. The cooling fan 6 increases the air flow rate around the heat sink 5, allowing the airflow to carry away the heat on the surface of the heat sink 5, thereby achieving the purpose of cooling the first LED particle 3 and the second LED particle 4.

[0026] Step 3: When zooming is required, the micro motor 955 drives the gear 956 to rotate clockwise or counterclockwise. Under the transmission of the gear 956 and the rack 954, the moving plate 952 can move back and forth. The guide groove 953 presses the pin 94, which can move the inner liner 93 to the right or left, adjust the distance between the lens 10 and the reflector 2, change the angle of light refraction on the lens 10, and thus change the illumination range.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A variable color temperature LED lens assembly for automotive lighting, comprising a substrate (1), characterized in that, Also includes: A reflector (2) is installed on the right side of the substrate (1). The inner side of the reflector (2) is plated with aluminum to reflect light to the left. The first LED particle (3) and the second LED particle (4) are mounted in parallel on the upper surface of the substrate (1); Heat sink (5) is installed on the right side of the upper surface of the substrate (1). Heat sink (5) increases its own surface area and dissipates heat from the substrate (1). A cooling fan (6) is installed on the lower surface of the substrate (1). The cooling fan (6) generates airflow around the heat sink (5) to improve the heat dissipation capacity of the heat sink (5). A light and dark cutoff plate (7) is installed on the left side wall of the substrate (1); Solenoid valve (8) is installed on the outer wall of the light and dark cut-off baffle (7); An adjustment mechanism (9) is provided on the left side wall of the substrate (1); The lens (10) is installed at the left end of the adjusting mechanism (9); The first LED particle (3) and the second LED particle (4) are respectively a 5-core 15W LED particle with a color temperature of 6000k and a 5-core 15W LED particle with a color temperature of 3000k.

2. The variable color temperature LED lens assembly for automotive lighting according to claim 1, characterized in that, The adjusting mechanism (9) includes: Enclosure (91) is installed on the left side wall of the base plate (1), and a slide (92) is provided at the bottom of the outer wall of the enclosure (91) along the left and right directions. The inner liner (93) is slidably inserted into the inner cavity of the enclosure (91), and the left side of the inner liner (93) is installed with the lens (10); A pin (94) is installed on the outer wall of the inner liner (93) and the pin (94) penetrates the inner cavity of the slide (92). The inner liner (93) is prevented from rotating by the cooperation between the pin (94) and the slide (92). The drive assembly (95) is installed at the bottom of the outer wall of the enclosure (91).

3. A variable color temperature LED lens assembly for automotive lighting according to claim 2, characterized in that, The pin (94) is cylindrical in shape.

4. A variable color temperature LED lens assembly for automotive lighting according to claim 2, characterized in that, The drive component (95) includes: The box body (951) is installed at the bottom of the outer wall of the enclosure (91); The movable plate (952) is slidably inserted into the inner cavity of the box (951). The outer wall of the movable plate (952) is provided with a guide groove (953), and the bottom end of the pin (94) is inserted into the inner cavity of the guide groove (953). A rack (954) is installed at the front end of the movable plate (952); A miniature motor (955) is mounted on the lower surface of the housing (951); A gear (956) is installed at the output end of the micro motor (955), and the gear (956) meshes with the rack (954).

5. A variable color temperature LED lens assembly for automotive lighting according to claim 4, characterized in that, The guide groove (953) is inclinedly distributed on the outer wall of the moving plate (952).

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