Automobile LED double-dipped headlight

Abstract

The utility model discloses an automobile light-emitting diode (LED) double dipped headlight which comprises a lamp shell, a light-transmitting cover, a first dipped headlight, a second dipped headlight, a first heat conducting ring, a first radiator and a reflecting cover, a first reflecting surface and a second reflecting surface are respectively arranged on two sides of the reflecting cover, the first heat conducting ring is used for absorbing heat of the first reflecting surface, and the second heat conducting ring is used for absorbing heat of the second reflecting surface. A first heat conduction shaft is arranged at the top of the first heat conduction ring, the first radiator is arranged on the lamp shell above the first emitting face, and the first heat conduction shaft penetrates through the lamp shell and is in contact connection with the first radiator. According to the automobile LED dipped headlight, through the synergistic effect of the first dipped headlight and the second dipped headlight, the overall lighting brightness and range of the automobile LED dipped headlight can be improved, the first reflecting face can absorb a part of light energy and convert the light energy into heat in the light reflecting process, the first heat conduction ring can effectively absorb the heat of the first reflecting face and disperse the heat into air, and therefore the heat conduction efficiency is improved. Therefore, the heat dissipation efficiency is improved, and the heat is prevented from accumulating on the first reflecting surface and influencing the first dipped headlight.

Description

Technical Field

[0001] The utility model relates to the field of automobile LED lamps, in particular to an automobile LED double low-beam lamp. Background Art

[0002] The automotive LED low beam is a light source used in the headlight system of a motor vehicle. Its function is to provide the driver with lighting for the road ahead at night or in low visibility conditions to ensure safe driving.

[0003] In the prior art, conventional automobile low beam lamps on the market are usually single-sided LED lamp structures, and the single-sided LED low beam lamps have limited lighting brightness and range, and it is difficult to provide sufficient lighting coverage, especially in weak light or low visibility conditions, affecting the driver's field of vision; in addition, LED low beam lamps will generate a lot of heat when working for a long time. If the heat dissipation is not timely, the performance of the automobile LED low beam lamps will be reduced, and even the lamp will be damaged, seriously affecting its service life and reliability.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automotive LED double low-beam lamp with wide lighting coverage, high heat dissipation efficiency and long service life.

[0006] To achieve this purpose, the utility model adopts the following technical solution: an automotive LED dual low-beam lamp, comprising a lamp housing, a light-transmitting cover, a first low-beam lamp, a second low-beam lamp, a first heat-conducting ring, a first radiator and a reflector;

[0007] The lamp housing has an accommodating chamber inside, the reflector is located in the accommodating chamber, the reflector has a first reflecting surface and a second reflecting surface on both sides, the first low beam lamp is located on the first reflecting surface, and the second low beam lamp is located on the second reflecting surface;

[0008] A first ring groove is provided on the edge of the first reflective surface in the light emitting direction, the first heat conductive ring is attached to the first ring groove, the first heat conductive ring is used to absorb the heat of the first reflective surface, the top of the first heat conductive ring has a first heat conductive axis, the first heat sink is provided on the lamp housing above the first emitting surface, the first heat conductive axis passes through the lamp housing and is in contact with and connected to the first heat sink;

[0009] The light-transmitting cover is connected to the lamp housing via a buckle, and the light-transmitting cover is used for scattering the light emitted from the first low-beam lamp and the second low-beam lamp.

[0010] By adopting the above technical solution, the automotive LED dual low-beam lamp further includes a high-beam lamp, a third reflecting surface is provided between the first reflecting surface and the second reflecting surface, and the high-beam lamp is located on the third reflecting surface.

[0011] By adopting the above-mentioned technical solutions, the automotive LED dual low-beam lamp further includes a second heat-conducting ring and a second heat sink;

[0012] A second ring groove is provided on the edge of the third reflecting surface in the light emitting direction, the second heat-conducting ring is attached to the second ring groove, the top of the second heat-conducting ring has a second heat-conducting axis, the second heat-conducting axis is provided on the lamp housing above the third emitting surface, and the second heat-conducting axis passes through the lamp housing and is in contact with and connected to the second heat-conducting axis.

[0013] By adopting the above-mentioned technical solutions, in the automotive LED dual low-beam lamp, the first radiator and the second radiator have the same structure, both including a heat dissipation base plate and heat dissipation ribs, the heat dissipation base plate is arranged on the lamp housing, and a plurality of the heat dissipation ribs are arranged in a vertical array on the heat dissipation base plate.

[0014] By adopting the above-mentioned technical solutions, in the automotive LED dual low-beam lamp, the reflector is made of aluminum alloy, and the first heat-conducting ring and the second heat-conducting ring are made of copper.

[0015] By adopting the above-mentioned technical solutions, in the automotive LED dual low-beam lamp, the bonding surfaces of the first heat-conducting ring and the second heat-conducting ring are coated with a graphene coating or a carbon nanotube coating.

[0016] By adopting the above-mentioned technical solutions, in the automotive LED dual low-beam lamp, the second reflecting surface is provided with a facet structure.

[0017] By adopting the above-mentioned technical solutions, in the automotive LED dual low-beam lamp, the side wall edge of the lamp housing is provided with a plurality of slots, and the side wall edge of the light-transmitting cover is provided with a plurality of blocks connected to the slots by buckles.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model can improve the overall illumination brightness and range of the automobile LED low-beam lamp through the synergistic effect of the first low-beam lamp and the second low-beam lamp; the first reflecting surface absorbs a part of the light energy and converts it into heat during the process of reflecting the light, and the first heat-conducting ring is attached to the first ring groove of the first reflecting surface, which can effectively absorb the heat of the first reflecting surface and disperse the heat into the air, thereby improving the heat dissipation efficiency and avoiding the heat accumulation on the first reflecting surface and affecting the first low-beam lamp; the first radiator is provided with a vertical array of heat dissipation convex strips, which can facilitate the formation of natural convection, thereby quickly taking the heat away from the surface of the first radiator, enhancing the heat dissipation effect, and allowing the first low-beam lamp to operate within a safe temperature range and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0022] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the first heat-conducting ring installation structure of the utility model. DETAILED DESCRIPTION

[0026] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0028] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0029] like Figures 1 to 4 As shown, the embodiment of the utility model provides a car LED dual low beam lamp, including a lamp housing 1, a light-transmitting cover 2, a first low beam lamp 31, a second low beam lamp 32, a first heat-conducting ring 41, a first heat sink 51 and a reflector 6;

[0030] The lamp housing 1 has an accommodating chamber 10 inside, the reflector 6 is located in the accommodating chamber 10, and the reflector 6 has a first reflecting surface 61 and a second reflecting surface 62 on both sides thereof, the first low beam lamp 31 is located on the first reflecting surface 61, and the second low beam lamp 32 is located on the second reflecting surface 62; through the synergistic effect of the first low beam lamp 31 and the second low beam lamp 32, the overall lighting brightness and range of the automobile LED low beam lamp can be improved, especially in the case of weak light or low visibility, a clearer front view can be provided for the driver; the first reflecting surface 61 and the second reflecting surface 62 can reflect the light emitted from the first low beam lamp 31 and the second low beam lamp 32, so that the light is concentrated and directed to the road, thereby improving the lighting effect and brightness.

[0031] The edge of the first reflective surface 61 in the light emitting direction is provided with a first annular groove 610, the first heat-conducting ring 41 is attached to the first annular groove 610, the first heat-conducting ring 41 is used to absorb the heat of the first reflective surface 61, the first heat-conducting ring 41 has a first heat-conducting shaft 411 on the top, the first heat-conducting radiator 51 is provided on the lamp housing 1 above the first emitting surface, the first heat-conducting shaft 411 passes through the lamp housing 1 and is in contact with and connected to the first heat-conducting radiator 51; the first reflective surface 61 absorbs a part of the light energy and converts it into heat, attaching the first heat-conducting ring 41 to the first annular groove 610 can effectively absorb the heat of the first reflective surface 61, and avoid the heat accumulation on the first reflective surface 61 and affecting the first low-beam lamp 31. Specifically, the heat-conducting shaft on the top of the first heat-conducting ring 41 can conduct the heat to the first heat-conducting radiator 51, and the first heat-conducting radiator 51 can disperse the heat into the air, effectively improving the heat dissipation efficiency.

[0032] The light-transmitting cover 2 is connected to the lamp housing 1 by a buckle, and the light-transmitting cover 2 is used to scatter the light emitted from the first low-beam lamp 31 and the second low-beam lamp 32. In addition to providing protection, the light-transmitting cover 2 can also scatter the light emitted from the first low-beam lamp 31 and the second low-beam lamp 32, so that the light is more evenly distributed on the road, reducing the glare and light spots caused by the light being concentrated at one point, and improving the lighting effect and driving safety.

[0033] like Figure 1 As shown, further, a high beam lamp 7 is included, a third reflecting surface 63 is provided between the first reflecting surface 61 and the second reflecting surface 62, and the high beam lamp 7 is located on the third reflecting surface 63. The third reflecting surface 63 can reflect the light emitted by the high beam lamp 7, so that the light is concentrated and projected onto a distant road, providing a longer-distance lighting effect.

[0034] like Figure 3 As shown, further, a second heat-conducting ring 42 and a second heat sink 52 are included, the edge of the third reflective surface 63 in the light-emitting direction is provided with a second ring groove 630, the second heat-conducting ring 42 is attached to the second ring groove 630, the top of the second heat-conducting ring 42 has a second heat-conducting axis 421, the second heat sink 52 is provided on the lamp housing 1 above the third emitting surface, the second heat-conducting axis 421 passes through the lamp housing 1 and is in contact with the second heat sink 52. LED light sources are very sensitive to temperature, and high temperatures will reduce their light efficiency, resulting in weakened light output. By providing the second heat-conducting ring 42 and the second heat sink 52, the heat dissipation effect of the high beam lamp 7 can be improved, so that it can operate within a safe temperature range and extend its life.

[0035] like Figure 1 and Figure 4As shown, further, the first heat sink 51 and the second heat sink 52 have the same structure, both of which include a heat sink bottom plate 511 and heat sink ribs 512. The heat sink bottom plate 511 is arranged on the lamp housing 1, and a plurality of heat sink ribs 512 are arranged in a vertical array on the heat sink bottom plate 511. The heat sink bottom plate 511 and the heat sink ribs 512 in the vertical array can provide a larger surface area, thereby increasing the heat dissipation contact area, accelerating heat conduction and dissipation, and improving heat dissipation efficiency; and the heat sink ribs 512 in the vertical array can facilitate the formation of natural convection, thereby quickly taking heat away from the surface of the first heat sink 51, and enhancing the heat dissipation effect.

[0036] Furthermore, the reflector 6 is made of aluminum alloy, and the first heat-conducting ring 41 and the second heat-conducting ring 42 are made of copper. The reflector 6 made of aluminum alloy has good reflective performance, which can improve the light reflection efficiency and ensure the uniform distribution and focusing of the light; while the copper material has a high thermal conductivity and can quickly conduct heat.

[0037] Furthermore, the bonding surfaces of the first heat-conducting ring 41 and the second heat-conducting ring 42 are coated with a graphene coating or a carbon nanotube coating. In this embodiment, the bonding surfaces of the first heat-conducting ring 41 and the second heat-conducting ring 42 are coated with a graphene coating. This arrangement can reduce the interface thermal resistance between the first heat-conducting ring 41 and the second heat-conducting ring 42 and the contact surface, thereby improving the heat conduction efficiency, so that the heat is conducted to the first heat sink 51 or the second heat sink 52 faster and more effectively.

[0038] like Figure 1 As shown, further, a facet structure 620 is provided on the second reflective surface 62. The facet structure 620 can reflect and refract the light emitted by the second low beam lamp 32 multiple times, so that it is more evenly distributed in the area to be illuminated, reducing light spots and dark areas, and providing a more uniform lighting effect. It should be noted that the output power of the second low beam lamp 32 is relatively low, and the heat generated is less, and it can be kept within a safe temperature range without a separate heat sink.

[0039] like Figure 2 and Figure 3 As shown, further, the side wall edge of the lamp housing 1 is provided with a plurality of card slots 11, and the side wall edge of the light-transmitting cover 2 is provided with a plurality of card blocks 21 connected to the card slots 11 by snap buckles. Such an arrangement enables the light-transmitting cover 2 to be quickly and conveniently assembled and disassembled with the lamp housing 1 without the aid of additional tools, thereby simplifying the manufacturing and maintenance process.

[0040] The utility model can improve the overall illumination brightness and range of the automobile LED low beam lamp through the synergistic effect of the first low beam lamp 31 and the second low beam lamp 32. The first reflecting surface 61 absorbs a part of the light energy and converts it into heat during the process of reflecting light. The first heat-conducting ring 41 is attached to the first ring groove 610 of the first reflecting surface 61, which can effectively absorb the heat of the first reflecting surface 61 and disperse the heat into the air, thereby improving the heat dissipation efficiency and avoiding the heat accumulation on the first reflecting surface 61 and affecting the first low beam lamp 31; the first radiator 51 is provided with a vertical array of heat dissipation ridges 512, which can facilitate the formation of natural convection, thereby quickly taking the heat away from the surface of the first radiator 51, enhancing the heat dissipation effect, and allowing the first low beam lamp 31 to operate within a safe temperature range and extend its life.

[0041] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A car LED double low beam lamp, characterized in that: It includes a lamp housing, a light-transmitting cover, a first low-beam lamp, a second low-beam lamp, a first heat-conducting ring, a first heat sink and a reflector; The lamp housing has an accommodating chamber inside, the reflector is located in the accommodating chamber, the reflector has a first reflecting surface and a second reflecting surface on both sides, the first low beam lamp is located on the first reflecting surface, and the second low beam lamp is located on the second reflecting surface; A first ring groove is provided on the edge of the first reflective surface in the light emitting direction, the first heat conductive ring is attached to the first ring groove, the first heat conductive ring is used to absorb the heat of the first reflective surface, the top of the first heat conductive ring has a first heat conductive axis, the first heat sink is provided on the lamp housing above the first emitting surface, the first heat conductive axis passes through the lamp housing and is in contact with and connected to the first heat sink; The light-transmitting cover is connected to the lamp housing via a buckle, and the light-transmitting cover is used for scattering the light emitted from the first low-beam lamp and the second low-beam lamp.

2. The automotive LED dual low beam lamp according to claim 1, characterized in that: A high beam lamp is also included. A third reflecting surface is provided between the first reflecting surface and the second reflecting surface. The high beam lamp is located on the third reflecting surface.

3. The automotive LED dual low beam lamp according to claim 2, characterized in that: It also includes a second heat-conducting ring and a second heat sink; A second ring groove is provided on the edge of the third reflecting surface in the light emitting direction, the second heat-conducting ring is attached to the second ring groove, the top of the second heat-conducting ring has a second heat-conducting axis, the second heat-conducting axis is provided on the lamp housing above the third emitting surface, and the second heat-conducting axis passes through the lamp housing and is in contact with and connected to the second heat-conducting axis.

4. The automotive LED dual low beam lamp according to claim 3, characterized in that: The first radiator and the second radiator have the same structure, and both include a heat dissipation base plate and heat dissipation ribs. The heat dissipation base plate is arranged on the lamp housing, and a plurality of heat dissipation ribs are arranged in a vertical array on the heat dissipation base plate.

5. The automotive LED dual low beam lamp according to claim 4, characterized in that: The reflector is made of aluminum alloy, and the first heat-conducting ring and the second heat-conducting ring are made of copper.

6. The automotive LED dual low beam lamp according to claim 5, characterized in that: The bonding surfaces of the first heat-conducting ring and the second heat-conducting ring are coated with a graphene coating or a carbon nanotube coating.

7. The automotive LED dual low beam lamp according to claim 1, characterized in that: The second reflecting surface is provided with a facet structure.

8. The automotive LED dual low beam lamp according to claim 1, characterized in that: The side wall edge of the lamp housing is provided with a plurality of slots, and the side wall edge of the light-transmitting cover is provided with a plurality of clamping blocks connected with the slots through buckles.

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