Car lamp
By separating the lighting unit and the heat dissipation unit of the headlight and using an external radiator and optical fiber connection, the problem of large size and heavy weight of traditional headlights is solved, and a headlight design with smaller size, lower cost and higher brightness is achieved.
Patent Information
- Application Number
- CN202423182029.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional car lights are bulky and heavy because the light panel and radiator are integrated together, which affects the lighting performance and increases the cost when the brightness is increased.
The lighting unit and the heat dissipation unit are set separately, and the radiator is placed outside the lamp housing and connected by optical fiber to achieve a high degree of integration of the light board and the radiator, reduce the number of parts and weight, and enhance the heat dissipation effect.
Reduce the size and weight of car lights, reduce costs, improve lighting brightness and optical performance, enhance heat dissipation, and achieve high luminous flux output.
Smart Images
Figure CN223448204U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle technical field more particularly, relate to a car light. BACKGROUND
[0002] With the development of car light illumination technology, the illumination requirement of car light is higher and higher, and small size and high brightness are the development trend of car light.
[0003] Traditional car light usually assembles lamp panel and radiator directly, and then assembles lamp panel and radiator into the environment sealed by lamp shell and lampshade, the working temperature in the lamp rises sharply after the car light is lighted, which affects the heat dissipation of light emitting elements and other parts on the lamp panel and illumination performance.
[0004] Therefore, how to improve the optical performance of car light becomes a technical problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENT
[0005] Therefore, the utility model aims at providing a car light to improve the optical performance.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.
[0007] A car light comprises:
[0008] A lampshade;
[0009] A lamp shell, the lampshade and the lamp shell are connected to form a mounting space;
[0010] An illumination unit, the illumination unit comprises an optical assembly, and the illumination unit is arranged in the mounting space;
[0011] A heat dissipation unit, the heat dissipation unit comprises a lamp panel and a radiator connected with the lamp panel, the lamp panel is provided with a light emitting element, the radiator is arranged outside the mounting space and connected with the lamp shell, and the heat dissipation unit is connected with the illumination unit through an optical fiber.
[0012] Optionally, in the above car light, the heat dissipation unit comprises a light collector and a light inlet support, the lamp panel, the light collector and the optical fiber are connected with the light inlet support;
[0013] The light inlet end of the optical fiber is located at the focal point position of the light collector, and the light emitted by the light emitting element is collected by the light collector and then enters the optical fiber.
[0014] Optionally, in the above car light, the illumination unit comprises a plurality of, the light emitting element comprises a plurality of, and each illumination unit corresponds to one or more light emitting elements.
[0015] Optionally, in the above car light, the optical fiber comprises a plurality of corresponding to the light emitting element, and the optical fiber comprises a light inlet end and a light outlet end; or,
[0016] The optical fibers include a plurality of optical fibers corresponding to the light emitting elements, each of the optical fibers includes an entrance end and a plurality of exit ends, the entrance end is connected with the heat dissipation unit, and the exit ends are connected with the lighting unit.
[0017] Optionally, in the vehicle lamp, the lighting unit includes a plurality of lighting units, the light emitting element includes one light emitting element, the optical fiber includes an entrance end and a plurality of exit ends, the entrance end is connected with the heat dissipation unit, and the exit ends are connected with the lighting unit.
[0018] Optionally, in the vehicle lamp, the optical assembly includes a first lens and a second lens; or,
[0019] The optical assembly includes a reflecting bowl and a third lens.
[0020] Optionally, in the vehicle lamp, the vehicle lamp further includes a light adjusting motor and a light adjusting support, the light adjusting motor is connected with the lamp shell, the light adjusting support is connected with the light adjusting motor, and the lighting unit is connected with the light adjusting support.
[0021] Optionally, in the vehicle lamp, the lighting unit includes a lighting mounting base, and the optical assembly is mounted on the lighting mounting base.
[0022] Optionally, in the vehicle lamp, the lighting mounting base includes a base and a cover plate connected with each other, and the optical assembly is connected with the base and the cover plate respectively.
[0023] Optionally, the lighting unit and the heat dissipation unit are both provided with a fiber fixing end to fix the optical fiber.
[0024] As can be seen from the above solution, the vehicle lamp disclosed by the utility model, the lighting unit and the heat dissipation unit are arranged separately, which can reduce the number of parts of the lighting unit, reduce the volume and weight of the lighting unit, and further reduce the volume of the vehicle lamp; the heat dissipation unit can integrate all the light emitting elements of the vehicle lamp on a lamp panel, all the light emitting elements can share one heat radiator, the high integration of the lamp panel and the heat radiator can be realized, the weight of the vehicle lamp can be reduced, and the cost can be reduced; the heat radiator is arranged outside the mounting space formed by the lampshade and the lamp shell, directly contacts with air, can quickly take away the heat generated by the lamp panel, can reduce the ambient temperature in the mounting space, enhances the heat dissipation effect, can realize the output of high luminous flux, under the same power consumption, the illumination brightness can be improved, and the performance of the illumination module can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.
[0026] Figure 1 Structure diagram of the car lamp Figure One ;
[0027] Figure 2 Structure diagram of the car lamp
[0028] Figure 3 Structure diagram of the car lamp Figure Two ;
[0029] Figure 4 Structure diagram of the car lamp Figure Three ;
[0030] Figure 5 Structure diagram of the car lamp Figure Four ;
[0031] Figure 6 Optical path diagram of the heat dissipation unit.
[0032] Figure 7 Optical path diagram of the lighting unit.
[0033] 10, lampshade;
[0034] 20, lamp shell;
[0035] 30, lighting unit, 31, optical assembly, 311, reflecting bowl, 312, third lens, 32, lighting mounting base, 321, base, 322, cover plate;
[0036] 40, heat dissipation unit, 41, lamp plate, 411, light emitting element, 42, heat sink, 43, condenser, 44, light inlet support;
[0037] 50, optical fiber;
[0038] 60, light adjusting motor;
[0039] 70, light adjusting support. DETAILED DESCRIPTION
[0040] In addition to the problems mentioned in the background art, the prior art also has the following problems:
[0041] 1. The traditional lighting lamp integrates the light source, optical device and heat dissipation device together, and the product volume is often large. The heat dissipation device usually adopts a metal heat sink, and some have a fan, so that the weight of the lighting module is large. Some lighting modules require high brightness, and the heat dissipation device requires strong heat dissipation performance, and some even use water cooling technology, greatly increasing the volume and cost of the car lamp.
[0042] 2. At present, the solution for the lighting lamp with high brightness in the market is mainly to increase the number of light sources. With the increase of light sources, the heat dissipation device also needs to be changed synchronously. One solution is to increase the volume of the product and the heat sink. Another solution is to change the heat dissipation scheme, which will increase the cost of the product.
[0043] The core of the utility model lies in a car lamp to improve optical performance.
[0044] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0045] As shown in the drawings, Figure 1 The car lamp disclosed in the embodiments of the utility model comprises a lampshade 10, a lamp shell 20, an illumination unit 30 and a heat dissipation unit 40.
[0046] Specifically, the lampshade 10 and the lamp shell 20 are connected to form a mounting space, the illumination unit 30 is arranged in the mounting space, and the illumination unit 30 comprises an optical assembly 31. The heat dissipation unit 40 comprises a lamp plate 41 and a heat sink 42 connected with the lamp plate 41, the lamp plate 41 is provided with light emitting elements 411, preferably LED particles, and the heat sink 42 is arranged outside the mounting space and connected with the lamp shell 20. The heat dissipation unit 40 is connected with the illumination unit 30 through an optical fiber 50.
[0047] The light emitted by the light emitting elements 411 is transmitted to the illumination unit 30 through the optical fiber 50, enters the optical assembly 31, is reflected and refracted by the optical assembly 31 and then is emitted, and the heat sink 42 is used for heat dissipation of the lamp plate 41.
[0048] The vehicle lamp disclosed by the embodiment of the utility model, the lighting unit 30 and the heat dissipation unit 40 are separately arranged, the number of parts of the lighting unit 30 can be reduced, the volume and weight of the lighting unit 30 can be reduced, and then the volume of the vehicle lamp can be reduced; the heat dissipation unit 40 can integrate all the light emitting elements 411 of the vehicle lamp on a lamp panel 41, all the light emitting elements 411 can share a radiator 42, the high integration of the lamp panel 41 and the radiator 42 can be realized, the weight of the vehicle lamp can be reduced, and the cost can be reduced; the radiator 42 is arranged outside the mounting space formed by the lampshade 10 and the lamp shell 20, directly contacts with air, can quickly take away the heat generated by the lamp panel 41, can reduce the ambient temperature in the mounting space, enhances the heat dissipation effect, can realize the output of high luminous flux, under the condition of the same power consumption, the illumination brightness can be improved, and the performance of the illumination module can be improved.
[0049] It should be noted that the lampshade 10 and the lamp shell 20 can be connected through buckling, or connected through bolts, or connected through other fixing devices. The lamp panel 41 and the radiator 42 can be connected through welding connection, or connected through adhesive connection, or connected through connecting pieces, and the connection mode is not limited.
[0050] Further, as shown in Figure 6 The heat dissipation unit 40 includes a condenser 43 and a light inlet support 44, and the condenser 43 and the light emitting element 411 correspond one by one. The lamp panel 41, the condenser 43 and the optical fiber 50 are connected with the light inlet support 44, the light inlet end of the optical fiber 50 is located at the focal point position of the condenser 43, the light emitted by the light emitting element 411 is irradiated to the receiving optical surface of the condenser 43, is refracted after the receiving optical surface, the parallel light propagates in the condenser 43, and then is emitted from the light outlet surface of the condenser 43 and is gathered at the light inlet port of the optical fiber 50, is transmitted to the lighting unit 30 through the optical fiber 50, and the arrow in the figure represents the light path. The arrangement of the condenser 43 can effectively collect the divergent light of the light emitting element 411, reduce the propagation loss of the light, and improve the optical efficiency.
[0051] The lamp panel 41 and the light inlet support 44 can be connected through bolts, or connected through clamping, or connected through adhesive, or connected through welding. The condenser 43 and the light inlet support 44 can be connected through clamping, or connected through bolts, or connected through adhesive, and the connection mode is not limited.
[0052] Figure 6 A in the figure represents the size of the light emitting surface of the light emitting element 411, and B represents the size of the light emitting surface of the optical fiber 50, and from the figure, it can be seen that the light emitting surface entering the lighting unit 30 is reduced after transmission through the optical fiber 50, and this mode can improve the illumination optical efficiency. In actual use, a small size optical fiber 50 can be selected to further reduce the size of the light emitting surface.
[0053] Further, as shown in Figure 3 and Figure 5 in some embodiments, the lighting unit 30 includes a plurality of, the light emitting element 411 includes a plurality of, and each lighting unit 30 corresponds to one or more light emitting elements 411. Figure 3 as shown in the figure, which is only an example and cannot be regarded as a limitation, and targeted adjustments can be made according to actual needs. The lighting unit 30 can also correspond to one light emitting element 411 or a plurality of light emitting elements 411. The number of light emitting elements 411 corresponding to each lighting unit 30 can be the same or different. For example, the lighting unit 30 can include two, and the first lighting unit 30 corresponds to one light emitting element 411, and the second lighting unit 30 corresponds to two light emitting elements 411. The specific number of settings can be set according to actual needs.
[0054] Further, in some embodiments, as shown in Figure 3 the optical fiber 50 includes a plurality of one-to-one corresponding to the light emitting element 411, the optical fiber 50 includes an entrance end and an exit end, the entrance end of each optical fiber 50 is connected with the light entrance support 44, and the exit end is connected with the lighting unit 30. The lighting unit 30 is provided with an optical assembly 31 corresponding to the optical fiber 50.
[0055] In other embodiments, as shown in Figure 5 the optical fiber 50 includes a plurality of one-to-one corresponding to the light emitting element 411, and each optical fiber 50 includes an entrance end and a plurality of exit ends. The entrance end is connected with the heat dissipation unit 40, and the exit end is connected with the lighting unit 30. For example, the light emitting element 411 includes two, the optical fiber 50 includes two, each optical fiber 50 includes an entrance end and two exit ends, each lighting unit 30 is connected with the heat dissipation unit 40 through an optical fiber 50, and the two exit ends of the same optical fiber 50 are connected with the same lighting unit 30. Compared with the scheme in Figure 3 , this scheme can reduce the number of light emitting elements 411 and reduce costs by providing a plurality of exit ends of the optical fiber 50.
[0056] In other embodiments, as shown in Figure 4 the lighting unit 30 includes a plurality of, the light emitting element 411 includes one, and all lighting units 30 share one light emitting element 411. The optical fiber 50 includes an entrance end and a plurality of exit ends, the entrance end is connected with the heat dissipation unit 40 and is arranged corresponding to the light emitting element 411, and the exit end is connected with the lighting unit 30. Figure 4The illustrated lighting units 30 include two, and the optical fiber 50 includes one light input end and four light output ends, with each lighting unit 30 connected to two light output ends. It should be noted that the illustrations are merely examples, and the specific number of light output ends and the number of light output ends connected to each lighting unit 30 can be determined based on actual needs. By providing the optical fiber 50 with multiple light output ends, the number of light-emitting elements 411 can be reduced, thereby lowering costs.
[0057] Furthermore, the optical component 31 includes a first lens and a second lens; or the optical component 31 includes a reflection bowl 311 and a third lens 312. Figure 7 As shown in the figure, the illumination principle of the optical fiber 50 is illustrated using the reflective bowl 311 and the third lens 312 as examples. Light transmitted through the optical fiber 50 enters the reflective bowl 311, is reflected by the reflective bowl 311, and then enters the third lens 312 for refraction before exiting. The light-emitting end of the optical fiber 50 serves as the light-incident surface of the illumination unit 30. It should be noted that the number of the second lens and the third lens can be one or more, and the number of the reflective bowl 311 and the third lens 312 can be one or more.
[0058] like Figures 4-5 As shown, taking the optical component 31 including the reflection bowl 311 and the third lens 312 as an example, there can be multiple reflection bowls 311 and one third lens 312. Alternatively, the third lens 312 and the reflection bowl 311 correspond one to one.
[0059] Furthermore, if Figure 2 As shown, the car light also includes a dimming motor 60 and a dimming bracket 70. The dimming motor 60 is connected to the lamp housing 20, the dimming bracket 70 is connected to the dimming motor 60, and the lighting unit 30 is connected to the dimming bracket 70. The dimming motor 60 drives the dimming bracket 70 to rotate, and then drives the lighting unit 30 to rotate, thereby realizing the dimming function. The car light disclosed in the embodiment of the present utility model does not affect the dynamic angle dimming of the lighting unit 30 because the heat dissipation unit 40 is external. The optical fiber 50 can achieve a small range of flexible dynamic bending as the lighting unit 30 rotates. When the lighting unit 30 is included in plurality, the multiple lighting units 30 can share one dimming motor 60, such as Figure 4 and Figure 5 Specifically, the dimming motor 60 includes a screw rod, which performs telescopic motion to push the dimming bracket 70 to rotate, thereby driving the lighting unit 30 to rotate to achieve dimming.
[0060] Furthermore, if Figure 1 As shown, the lighting unit 30 includes a lighting mounting base 32, and the optical assembly 31 is mounted on the lighting mounting base 32. Specifically, the lighting mounting base 32 includes a base 321 and a cover 322, the base 321 and the cover 322 are connected, and the optical assembly 31 is connected to the base 321 and the cover 322 respectively.
[0061] The car lamp disclosed by the embodiment of the utility model, the optical fiber fixed end is arranged on the lighting unit 30 and the heat dissipation unit 40 to fix the optical fiber 50.
[0062] It should be noted that each of the embodiments in the specification adopts a progressive manner for description, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between each embodiment can be referred to.
[0063] Hereinafter, the terms "first" and "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.
[0064] The terms "connected" and "connected" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.
[0065] The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used to help understand the core idea of the utility model. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the utility model.
Claims
1. A vehicle lamp, characterized in that: include: Lampshade (10); A lamp housing (20), wherein the lampshade (10) and the lamp housing (20) are connected to form an installation space; A lighting unit (30), the lighting unit (30) comprising an optical component (31), the lighting unit (30) being arranged in the installation space; A heat dissipation unit (40), the heat dissipation unit (40) comprising a lamp board (41) and a heat sink (42) connected to the lamp board (41), the lamp board (41) being provided with a light-emitting element (411), the heat sink (42) being provided outside the installation space and connected to the lamp housing (20), the heat dissipation unit (40) being connected to the lighting unit (30) via an optical fiber (50).
2. The vehicle lamp according to claim 1, wherein: The heat dissipation unit (40) comprises a concentrator (43) and a light input bracket (44); the light board (41), the concentrator (43) and the optical fiber (50) are all connected to the light input bracket (44); The light input end of the optical fiber (50) is located at the focal position of the concentrator (43), and the light emitted by the light-emitting element (411) is concentrated by the concentrator (43) and then incident on the optical fiber (50).
3. The vehicle lamp according to claim 2, wherein: The lighting units (30) include a plurality of lighting elements (411), and each lighting unit (30) corresponds to one or more lighting elements (411).
4. The vehicle lamp according to claim 3, wherein: The optical fiber (50) includes a plurality of optical fibers corresponding one to one to the light-emitting elements (411), and the optical fiber (50) includes a light input end and a light output end; or, The optical fiber (50) includes a plurality of optical fibers corresponding one to one with the light-emitting elements (411), and each optical fiber (50) includes a light input end and a plurality of light output ends, the light input end is connected to the heat dissipation unit (40), and the light output end is connected to the lighting unit (30).
5. The vehicle lamp according to claim 2, wherein: The lighting units (30) include a plurality of light-emitting elements (411), the optical fiber (50) includes a light input end and a plurality of light output ends, the light input end is connected to the heat dissipation unit (40), and the light output end is connected to the lighting unit (30).
6. The vehicle lamp according to claim 1, wherein: The optical assembly (31) comprises a first lens and a second lens; or, The optical component (31) includes a reflection bowl (311) and a third lens (312).
7. The vehicle lamp according to claim 1, wherein: It also includes a dimming motor (60) and a dimming bracket (70), wherein the dimming motor (60) is connected to the lamp housing (20), the dimming bracket (70) is connected to the dimming motor (60), and the lighting unit (30) is connected to the dimming bracket (70).
8. The vehicle lamp according to claim 1, wherein: The lighting unit (30) comprises a lighting mounting seat (32), and the optical component (31) is mounted on the lighting mounting seat (32).
9. The vehicle lamp according to claim 8, wherein: The lighting mounting seat (32) comprises a base (321) and a cover plate (322) that are connected, and the optical component (31) is connected to the base (321) and the cover plate (322) respectively.
10. The vehicle lamp according to any one of claims 1 to 9, characterized in that: The lighting unit (30) and the heat dissipation unit (40) are both provided with optical fiber fixing ends for fixing the optical fiber (50).