Light-emitting modules for vehicle headlights, vehicle headlights and vehicles
By adopting a separate heat dissipation section and light guide section design in the vehicle headlights, the problem of heat accumulation caused by the sharing of heat sink between the low beam and high beam lamp panels is solved, achieving efficient heat dissipation and stable lighting, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIND ELECTRONICS APPLIANCE CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-31
AI Technical Summary
In existing vehicle headlight modules, the low beam and high beam modules share the same heat sink, which causes heat to accumulate and interfere with each other, affecting luminous efficiency and lifespan, and increasing the difficulty of heat dissipation.
The system employs separate first and second heat dissipation sections to dissipate heat from the first and second light-emitting components, guides light through the first and second light guide sections, and designs the heat dissipation section and the light guide section as an integrally formed aluminum casting to enhance heat dissipation efficiency.
It effectively disperses heat, prevents localized overheating, improves heat dissipation efficiency, extends service life, and maintains stable lighting performance.
Smart Images
Figure CN224580153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle headlight technology, and in particular to a light-emitting module for vehicle headlights, a vehicle headlight, and a vehicle. Background Technology
[0002] In the vehicle headlight light-emitting modules of related technologies, the low beam and high beam panels are set on the same heat sink, and the reflector is set on one side of the heat sink, forming low beam functional areas and high beam functional areas with the low beam and high beam panels respectively. The low beam functional areas and high beam functional areas are not reasonably spatially separated, which causes the heat generated by the low beam functional areas and high beam functional areas to interfere with each other and accumulate during operation. This not only affects the normal working performance of the light-emitting module, reduces luminous efficiency and lifespan, but also increases the difficulty of overall heat dissipation. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a light-emitting module for vehicle headlights. According to this invention, the light-emitting module can effectively disperse heat, reduce heat accumulation, prevent localized overheating, and thus improve heat dissipation efficiency.
[0004] This utility model also proposes a vehicle headlight having the above-mentioned light-emitting module.
[0005] This utility model also proposes a vehicle having the aforementioned vehicle headlights.
[0006] The light-emitting module according to this utility model is used in vehicle headlights. The light-emitting module includes: a first light-emitting component, the first light-emitting component having a first heat dissipation part and a first light guide part connected to the first heat dissipation part; a first light-emitting element, the first light-emitting element being correspondingly disposed with the first light guide part; a second light-emitting component, the second light-emitting component having a second heat dissipation part and a second light guide part connected to the second heat dissipation part; and a second light-emitting element, the second light-emitting element being correspondingly disposed with the second light guide part; wherein the first heat dissipation part and the second light-emitting element are at least partially opposite each other in the thickness direction, and the second heat dissipation part and the first light-emitting element are at least partially opposite each other in the thickness direction.
[0007] According to the light-emitting module of this utility model, a first heat dissipation part and a second heat dissipation part are used to dissipate heat from the second light-emitting element and the first light-emitting element, respectively. Compared with the related technology in which the low beam headlight panel and the high beam headlight panel share the same heat sink, the light-emitting module of this utility model allows the first light-emitting element and the second light-emitting element to be arranged more dispersed in space, which can effectively disperse heat, reduce heat accumulation, prevent local overheating, and thus improve heat dissipation efficiency.
[0008] According to some embodiments of the present invention, the first light guide portion is connected to the edge of the first heat dissipation portion, and the second light-emitting element is disposed on the first heat dissipation portion and located at one end of the first light guide portion; the second light guide portion is connected to the edge of the second heat dissipation portion, and the first light-emitting element is disposed on the second heat dissipation portion and located at one end of the second light guide portion.
[0009] According to some embodiments of the present invention, the first heat dissipation part has a plurality of first heat dissipation fins spaced apart from each other on the surface opposite to the second light-emitting element; the second heat dissipation part has a plurality of second heat dissipation fins spaced apart from each other on the surface opposite to the first light-emitting element.
[0010] According to some embodiments of the present invention, the first heat dissipation portion is formed with a third heat dissipation fin, the third heat dissipation fin being configured as a plurality of fins arranged sequentially at intervals along at least a portion of the edge of the second light-emitting element; and / or, the second heat dissipation portion is formed with a fourth heat dissipation fin, the fourth heat dissipation fin being configured as a plurality of fins arranged sequentially at intervals along at least a portion of the edge of the first light-emitting element.
[0011] According to some embodiments of the present invention, the first light guide portion is constructed as a first light guide plate connected to the edge of the first heat dissipation portion, and the first light guide plate forms a first light guide groove that is recessed away from the first light-emitting element; the second light guide portion is constructed as a second light guide plate connected to the edge of the second heat dissipation portion, and the second light guide plate forms a second light guide groove that is recessed away from the second light-emitting element.
[0012] According to some embodiments of the present invention, the first heat dissipation part and the first light guide part are integrally formed; and / or, the second heat dissipation part and the second light guide part are integrally formed.
[0013] According to some embodiments of this utility model, the integrally molded part is constructed as an aluminum casting.
[0014] According to some embodiments of the present invention, at least one of the first light-emitting element and the second light-emitting element includes: a substrate, the substrate being connected to the first heat dissipation part or the second heat dissipation part; and light-emitting particles, the light-emitting particles being disposed on the substrate and configured as a plurality of spaced-apart particles.
[0015] The following is a brief description of the vehicle headlight according to this utility model.
[0016] The vehicle headlight according to this utility model includes the light-emitting module described in any of the above embodiments. Because the vehicle headlight according to this utility model includes the light-emitting module described in any of the above embodiments, it has high heat dissipation efficiency, long service life, and maintains stable lighting performance.
[0017] The vehicle according to this utility model is briefly described below.
[0018] The vehicle according to this utility model includes the vehicle headlights described in any of the above embodiments. Since the vehicle according to this utility model includes the vehicle headlights described in any of the above embodiments, the vehicle according to this utility model possesses vehicle headlights with efficient heat dissipation, stable illumination, and long lifespan, thus improving overall safety and reliability.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a front view of a light-emitting module according to an embodiment of the present invention; Figure 2 This is a front view of the first light-emitting component of a light-emitting module according to an embodiment of the present invention; Figure 3 This is a bottom view of the first light-emitting component and the second light-emitting element of a light-emitting module according to an embodiment of the present utility model.
[0021] Figure label: 1. Light-emitting module; 11. First light-emitting component; 111. First heat dissipation part; 1111. First heat dissipation fin; 1112. Third heat dissipation fin; 112. First light guide part; 1121. First light guide groove; 12. First light-emitting element; 121. Substrate; 122. Light-emitting particles; 13. Second light-emitting component; 131. Second heat dissipation part; 1311. Second heat dissipation fin; 132. Second light guide part; 1321. Second light guide groove; 14. Second light-emitting element. Detailed Implementation
[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] In the vehicle headlight light-emitting modules of related technologies, the low beam and high beam panels are set on the same heat sink, and the reflector is set on one side of the heat sink, forming low beam functional areas and high beam functional areas with the low beam and high beam panels respectively. The low beam functional areas and high beam functional areas are not reasonably spatially separated, which causes the heat generated by the low beam functional areas and high beam functional areas to interfere with each other and accumulate during operation. This not only affects the normal working performance of the light-emitting module, reduces luminous efficiency and lifespan, but also increases the difficulty of overall heat dissipation.
[0025] The following is for reference. Figures 1-3 A light-emitting module 1 for a vehicle headlight is described according to an embodiment of the present invention.
[0026] like Figure 1 As shown, the light-emitting module 1 according to this utility model is used for vehicle headlights. The light-emitting module 1 includes a first light-emitting component 11, a first light-emitting element 12, a second light-emitting component 13, and a second light-emitting element 14. Through the coordinated operation of each component, the vehicle headlights achieve both low beam and high beam illumination functions. For example, if the first light-emitting element 12 is the low beam, then the second light-emitting element 14 is the high beam.
[0027] The first light-emitting component 11 is provided with a first heat dissipation part 111 and a first light guide part 112 connected to the first heat dissipation part 111. The first light-emitting element 12 is correspondingly provided with the first light guide part 112. The first light guide part 112 is used to guide and distribute the light emitted by the first light-emitting element 12, so that the light can be emitted in the direction and angle required by the design to achieve a specific lighting effect.
[0028] The second light-emitting component 13 is provided with a second heat dissipation part 131 and a second light guide part 132 connected to the second heat dissipation part 131; the second light-emitting element 14 is correspondingly provided with the second light guide part 132. The second light guide part 132 is used to guide and distribute the light emitted by the second light-emitting element 14, so that the light can be emitted in the direction and angle required by the design, so as to achieve a specific lighting effect.
[0029] For example, the first light-emitting element 12 and the first light guide 112 are correspondingly arranged to form a low beam functional area, and the second light-emitting element 14 and the second light guide 132 are correspondingly arranged to form a high beam functional area. At the same time, the first heat dissipation part 111 is connected to the first light guide 112, and the second heat dissipation part 131 is connected to the second light guide 132. Through the above connection method, the first heat dissipation part 111 dissipates heat from the second light-emitting element 14, and the second heat dissipation part 131 dissipates heat from the first light-emitting element 12, achieving a compact and reasonable structural layout.
[0030] The first heat dissipation part 111 and the second light-emitting element 14 are at least partially opposite each other in the thickness direction. The airflow or heat dissipation effect generated by the first heat dissipation part 111 can be used to dissipate heat from the second light-emitting element 14, reduce the operating temperature of the second light-emitting element 14, and maintain the normal operating temperature of the second light-emitting element 14.
[0031] The second heat dissipation part 131 and the first light-emitting element 12 are at least partially opposite each other in the thickness direction. The airflow or heat dissipation effect generated by the second heat dissipation part 131 can be used to dissipate heat from the first light-emitting element 12, reduce the operating temperature of the first light-emitting element 12, and maintain the normal operating temperature of the first light-emitting element 12.
[0032] According to the light-emitting module 1 of this utility model, a first heat dissipation part 111 and a second heat dissipation part 131 are used to dissipate heat from the second light-emitting element 14 and the first light-emitting element 12, respectively. Compared with the related art in which the low beam headlight panel and the high beam headlight panel share the same heat sink, according to the light-emitting module 1 of this utility model, the first light-emitting element 12 and the second light-emitting element 14 can be arranged more dispersed in space, which can effectively disperse heat, reduce heat accumulation, prevent local overheating, and thus improve heat dissipation efficiency.
[0033] According to some embodiments of this utility model, such as Figures 1-3As shown, the first light guide 112 is connected to the edge of the first heat dissipation part 111, so that the first light guide 112 can use the edge of the first heat dissipation part 111 as a fixing point, making it convenient to assemble the first light-emitting component 11 as a whole.
[0034] The second light guide 132 is connected to the edge of the second heat dissipation part 131, so that the second light guide 132 can use the edge of the second heat dissipation part 131 as a fixing point, making it easy to assemble the second light-emitting component 13 as a whole.
[0035] The second light-emitting element 14 is disposed on the first heat dissipation part 111 and located at one end of the first light guide part 112, and the first light-emitting element 12 is disposed on the second heat dissipation part 131 and located at one end of the second light guide part 132. This facilitates the alignment of the first light-emitting element 12 with the first light guide part 112 and the second light-emitting element 14 with the second light guide part 132 during the assembly of the light-emitting module 1, thereby simplifying the assembly process.
[0036] According to some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the surface of the first heat dissipation part 111 facing away from the second light-emitting element 14 has a plurality of first heat dissipation fins 1111 that are spaced apart from each other, which can increase the heat dissipation area and enhance the heat dissipation capacity of the first heat dissipation part 111, so that the first heat dissipation part 111 can effectively dissipate heat from the second light-emitting element 14 and ensure that the second light-emitting element 14 can work stably within a suitable temperature range.
[0037] Because the multiple first heat dissipation fins 1111 are spaced apart from each other, multiple airflow channels are formed between them for airflow. When air flows through the airflow channels, the air carries away the heat from the first heat dissipation fins 1111 during the flow process, accelerating the dissipation of heat.
[0038] The second heat dissipation part 131 has a plurality of second heat dissipation fins 1311 formed on the surface opposite to the first light-emitting element 12, which can increase the heat dissipation area and enhance the heat dissipation capacity of the second heat dissipation part 131, so that the second heat dissipation part 131 can effectively dissipate heat from the first light-emitting element 12 and ensure that the first light-emitting element 12 can work stably within a suitable temperature range.
[0039] Because the multiple second heat dissipation fins 1311 are spaced apart from each other, multiple airflow channels are formed between them for airflow. When air flows through the airflow channels, the air carries away the heat from the second heat dissipation fins 1311 during the flow process, accelerating the dissipation of heat.
[0040] According to some embodiments of the present invention, the first heat dissipation part 111 is formed with third heat dissipation fins 1112, which are configured as a plurality of fins spaced apart sequentially along at least a portion of the edge of the second light-emitting element 14. By arranging a plurality of spaced-apart third heat dissipation fins 1112 along the edge of the second light-emitting element 14, the heat dissipation capacity of the area surrounding the second light-emitting element 14 can be specifically enhanced, the heat dissipation efficiency of the second light-emitting element 14 can be improved, and heat accumulation around the second light-emitting element 14 can be avoided.
[0041] Because multiple third heat dissipation fins 1112 are spaced apart, airflow channels are formed between adjacent third heat dissipation fins 1112, which can promote airflow and enhance convective heat transfer effect, thereby more efficiently transferring the heat generated by the second light-emitting element 14 to the surrounding environment and ensuring that its operating temperature is within a reasonable range.
[0042] According to some embodiments of the present invention, the second heat dissipation part 131 is formed with a fourth heat dissipation fin, which is configured as a plurality of fins arranged at intervals along at least a portion of the edge of the first light-emitting element 12. By arranging a plurality of spaced fourth heat dissipation fins along the edge of the first light-emitting element 12, the heat dissipation capacity of the area surrounding the first light-emitting element 12 can be specifically enhanced, the heat dissipation efficiency of the first light-emitting element 12 can be improved, and heat accumulation around the first light-emitting element 12 can be avoided.
[0043] Because multiple fourth heat dissipation fins are spaced apart, airflow channels are formed between adjacent fourth heat dissipation fins, which can promote airflow and enhance convective heat transfer, thereby more efficiently transferring the heat generated by the first light-emitting element 12 to the surrounding environment and ensuring that its operating temperature is within a reasonable range.
[0044] According to some embodiments of this utility model, such as Figures 1-3 As shown, the first light guide portion 112 is constructed as a first light guide plate connected to the edge of the first heat dissipation portion 111. The first light guide plate has a first light guide groove 1121 recessed away from the first light-emitting element 12. The first light guide groove 1121 can reflect the light emitted by the first light-emitting element 12, thereby realizing the control and utilization of the light pattern. The second light guide portion 132 is constructed as a second light guide plate connected to the edge of the second heat dissipation portion 131. The second light guide plate has a second light guide groove 1321 recessed away from the second light-emitting element 14. The second light guide groove 1321 can reflect the light emitted by the second light-emitting element 14, thereby realizing the control and utilization of the light pattern.
[0045] For example, the first light-emitting element 12 and the first light guide portion 112 are correspondingly arranged to form a low beam functional area, and the second light-emitting element 14 and the second light guide portion 132 are correspondingly arranged to form a high beam functional area. The first light guide groove 1121 reflects the light emitted by the first light-emitting element 12 to meet the light distribution requirements of the low beam illumination function. The second light guide groove 1321 reflects the light emitted by the second light-emitting element 14 to meet the light distribution requirements of the high beam illumination function.
[0046] According to some embodiments of this utility model, the first heat dissipation part 111 and the first light guide part 112 are constructed as an integral molded part. Through integral molding, there are no additional assembly interfaces or connecting parts between the first heat dissipation part 111 and the first light guide part 112, which not only simplifies the overall structure and eliminates the assembly process, but also effectively transforms assembly tolerances into casting tolerances, resulting in higher precision and reduced quality control costs.
[0047] According to some embodiments of this utility model, the second heat dissipation part 131 and the second light guide part 132 are constructed as an integral molded part. Through integral molding, there are no additional assembly interfaces or connecting parts between the second heat dissipation part 131 and the second light guide part 132, which not only simplifies the overall structure and eliminates the assembly process, but also effectively transforms assembly tolerances into casting tolerances, resulting in higher precision and reduced quality control costs.
[0048] According to some embodiments of this utility model, the integrally molded part is constructed as an aluminum casting. The first heat dissipation part 111 and the first light guide part 112 are manufactured by an integral casting process, and their material is metal gold, together forming a complete aluminum casting.
[0049] By using aluminum as the material and employing a casting process, the heat dissipation and light guide components, which originally required separate production and assembly, can be cast into a single unit. Aluminum offers better temperature resistance than ordinary plastics and high-temperature plastics, and allows for greater improvement in optical performance.
[0050] According to some embodiments of this utility model, such as Figure 1 As shown, at least one of the first light-emitting element 12 and the second light-emitting element 14 includes a substrate 121 and light-emitting particles 122. The substrate 121 is connected to the first heat dissipation part 111 or the second heat dissipation part 131. The light-emitting particles 122 are disposed on the substrate 121 and are configured as a plurality of spaced-apart particles.
[0051] The substrate 121 serves as a mechanical support and circuit connection, and is used to guide the heat generated by the light-emitting particles 122 to the first heat dissipation part 111 or the second heat dissipation part 131. The light-emitting particles 122 (such as LED chips) are arranged in multiple spaced intervals. On the one hand, this avoids the heat generated by the dense arrangement of multiple light-emitting particles 122 being too concentrated, which is conducive to heat dissipation and prevents local high temperature. On the other hand, by optically designing the spacing of the light-emitting particles 122, the required light distribution and illumination effect can be achieved in conjunction with the first light guide part 112 or the second light guide part 132, so as to meet the optical requirements of vehicle headlights for low beam or high beam.
[0052] The following is a brief description of the vehicle headlight according to this utility model.
[0053] The vehicle headlight according to this utility model includes the light-emitting module 1 in any of the above embodiments. Because the vehicle headlight according to this utility model includes the light-emitting module 1 in any of the above embodiments, the vehicle headlight according to this utility model has high heat dissipation efficiency, long service life, and can maintain stable lighting performance.
[0054] The vehicle according to this utility model is briefly described below.
[0055] The vehicle according to this utility model includes the vehicle headlights of any of the above embodiments. Since the vehicle according to this utility model includes the vehicle headlights of any of the above embodiments, the vehicle according to this utility model possesses vehicle headlights with efficient heat dissipation, stable illumination, and long lifespan, thus improving overall safety and reliability.
[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A light module for a vehicle headlamp, characterized in that include: The first light-emitting component (11) is provided with a first heat dissipation part (111) and a first light guide part (112) connected to the first heat dissipation part (111). The first light-emitting element (12) is disposed correspondingly to the first light guide part (112); The second light-emitting component (13) is provided with a second heat dissipation part (131) and a second light guide part (132) connected to the second heat dissipation part (131). The second light-emitting element (14) is disposed correspondingly to the second light guide portion (132); wherein The first heat dissipation part (111) and the second light-emitting element (14) are at least partially opposite each other in the thickness direction, and the second heat dissipation part (131) and the first light-emitting element (12) are at least partially opposite each other in the thickness direction.
2. The light emitting module of claim 1, wherein, The first light guide (112) is connected to the edge of the first heat dissipation part (111), and the second light-emitting element (14) is disposed on the first heat dissipation part (111) and located at one end of the first light guide (112); The second light guide (132) is connected to the edge of the second heat dissipation part (131), and the first light-emitting element (12) is disposed on the second heat dissipation part (131) and located at one end of the second light guide (132).
3. The light emitting module of claim 2, wherein, The surface of the first heat dissipation part (111) facing away from the second light-emitting element (14) has a plurality of first heat dissipation fins (1111) arranged at intervals between each other. The second heat dissipation part (131) has a plurality of second heat dissipation fins (1311) arranged at intervals on the surface opposite to the first light-emitting element (12).
4. The light emitting module of claim 3, wherein, The first heat dissipation part (111) is formed with a third heat dissipation fin (1112), which is configured as a plurality of fins arranged at intervals along at least a portion of the edge of the second light-emitting element (14); And / or, the second heat dissipation part (131) is formed with a fourth heat dissipation fin, which is configured as a plurality of fins arranged sequentially at intervals along at least a portion of the edge of the first light-emitting element (12).
5. The light emitting module of claim 1, wherein, The first light guide portion (112) is constructed as a first light guide plate connected to the edge of the first heat dissipation portion (111), and the first light guide plate has a first light guide groove (1121) recessed away from the first light-emitting element (12). The second light guide (132) is constructed as a second light guide plate connected to the edge of the second heat dissipation part (131), and the second light guide plate has a second light guide groove (1321) recessed away from the second light-emitting element (14).
6. The light emitting module of claim 1, wherein, The first heat dissipation part (111) and the first light guide part (112) are constructed as an integral part; and / or, the second heat dissipation part (131) and the second light guide part (132) are constructed as an integral part.
7. The light emitting module of claim 6, wherein, The integrally molded part is constructed of aluminum casting.
8. The light-emitting module according to claim 1, characterized in that, At least one of the first light-emitting element (12) and the second light-emitting element (14) includes: A substrate (121) is connected to the first heat dissipation part (111) or the second heat dissipation part (131). Light-emitting particles (122) are disposed on the substrate (121) and are configured as a plurality of particles spaced apart.
9. A vehicle headlight, characterized in that, Includes the light-emitting module as described in any one of claims 1-8.
10. A vehicle, characterized in that, Includes the vehicle headlight as described in claim 9.