Lamp unit, headlamp and vehicle

Abstract

A lamp unit, a headlamp and a vehicle, the lamp unit comprising: a light emitting module arranged in the up-down direction of the vehicle, the light emitting module comprising a light emitting surface, the light emitting module emitting light vertically upward relative to the vehicle through the light emitting surface; the light ray adjusting device is constructed to be used for adjusting light rays emitted by the light emitting surface so as to form an expected light shape for irradiating the front of the vehicle, and the light ray adjusting device comprises a first reflecting device and a second reflecting device; the first reflection device is configured to be used for adjusting emergent light of the light-emitting face of the light-emitting module among a plurality of working positions so that the position of the light shape can be adjusted in the vertical direction. And the second reflecting device is configured to be used for adjusting emergent light rays of the light emitting surface of the light emitting module among a plurality of working positions so as to adjust the position of the light shape in the left-right direction.

Description

Technical Field

[0001] The utility model generally relates to a lamp unit, a headlamp and a vehicle. Background Art

[0002] This section provides background information related to the present invention, but this information does not necessarily constitute prior art.

[0003] With the rapid development of modernization and high-density road traffic, the road traffic environment has become increasingly complex, thus posing increasing challenges to the design of vehicle headlights. In related technologies, in order to illuminate the light to the appropriate position in front of the vehicle, it is necessary to design an additional dimming structure in the vehicle headlight that is independent of the headlight's light-emitting module. Typically, this additional dimming structure requires a motor that can drive the light-emitting module to move or rotate it, and its structure is usually relatively complex. Therefore, the light-emitting module, which originally had a small size, becomes relatively bulky due to this additional dimming structure, which is not conducive to the lightweight and simple development of the headlight. Utility Model Content

[0004] This section provides a general summary of the invention, and is not a comprehensive disclosure of its full scope or all of its features.

[0005] An exemplary embodiment of the present utility model provides a lamp unit, which may include: a light-emitting module, which is arranged along the up-down direction of a vehicle, and the light-emitting module includes a light-emitting surface, and the light-emitting module emits light vertically upward relative to the vehicle through the light-emitting surface; and a light adjustment device, which is configured to adjust the light emitted through the light-emitting surface to form a desired light shape illuminating the front of the vehicle, wherein the light adjustment device includes a first reflecting device and a second reflecting device, the first reflecting device is configured to adjust the light emitted from the light-emitting surface of the light-emitting module between multiple working positions to achieve adjustment of the position of the light shape in the up-down direction, and the second reflecting device is configured to adjust the light emitted from the light-emitting surface of the light-emitting module between multiple working positions to achieve adjustment of the position of the light shape in the left-right direction.

[0006] In some embodiments, the first reflecting device includes a first reflecting surface, the second reflecting device includes a second reflecting surface arranged laterally to the first reflecting surface, the first reflecting surface is arranged to face the light emitting surface of the light emitting module and is configured to reflect the light emitted through the light emitting surface and guide it toward the second reflecting surface, and the second reflecting surface is configured to reflect the light reflected through the first reflecting surface and guide it toward the front of the vehicle.

[0007] In some embodiments, the first reflecting device may include a first pivot and a first plane mirror provided with a first reflecting surface, the first pivot may have a first pivot axis perpendicular to the up and down direction of the vehicle, and the first plane mirror is configured to pivot around the first pivot axis.

[0008] In some embodiments, the first pivot axis of the first pivot may pass through the geometric center of an illumination area on the first reflective surface by the light emitted through the light emitting surface.

[0009] In some embodiments, the second reflecting device may include a second pivot and a second plane mirror provided with a second reflecting surface, the second pivot may have a second pivot axis parallel to the up-down direction of the vehicle, and the second plane mirror is configured to pivot about the second pivot axis.

[0010] In some embodiments, the light emitting module may be a reflective light emitting module or a transmissive light emitting module.

[0011] In some embodiments, the light adjustment device is configured to be detachably mounted to the light emitting module.

[0012] In some embodiments, the light emitting module may be a vehicle lamp module including a lens, and the light emitting module may further include a lens holder, and the first reflecting device and the second reflecting device are configured to be detachably mounted to the lens holder.

[0013] In some embodiments, the light adjustment device can be formed as an integral part with the light emitting module.

[0014] In some embodiments, the light emitting module may be a vehicle lamp module including a lens. The light emitting module may further include a lens holder, and the first reflecting device and the second reflecting device may form an integral part with the lens holder.

[0015] An exemplary embodiment of the present invention further provides a headlamp, wherein the headlamp may include the lamp unit provided according to the aforementioned embodiment.

[0016] An exemplary embodiment of the present invention further provides a vehicle, wherein the vehicle may include the headlamp provided according to the aforementioned embodiment.

[0017] According to the above configuration, the lamp unit, headlamp and vehicle according to the present invention can bring at least the following beneficial technical effects:

[0018] 1) The lamp unit is arranged vertically relative to the front and rear directions of the vehicle, which can save space in the lateral direction of the vehicle and is beneficial to the space utilization of the vehicle headlights.

[0019] 2) Since the lamp unit is arranged vertically relative to the front-rear direction of the vehicle, and the space in the vertical direction of the vehicle is usually abundant, it is beneficial to the heat dissipation of the lamp unit, thereby improving the optical efficiency.

[0020] 3) Because the lamp unit is arranged vertically relative to the vehicle's fore-aft direction, the second reflective surface of the light-emitting module is visible when viewing the lamp unit from the front of the vehicle. In this case, the shape of the second reflective surface can be tailored to meet the desired appearance of the lamp unit. This allows for a diverse design without the need for expensive bezels and rings, thereby reducing production costs.

[0021] 4) According to the first reflecting device and the second reflecting device of the light adjustment device provided by the present invention, both can be adjusted between multiple working positions to adjust the position of the light shape irradiating the front of the vehicle in the up and down directions and the left and right directions respectively, so as to simultaneously achieve the up and down, left and right adjustments of the light shape to form a light shape irradiating the desired irradiation position in front of the vehicle.

[0022] 5) The light adjustment device can form an integrated light-emitting component with a dimming function together with the light-emitting module, so there is no need to design an additional dimming structure for the light-emitting component, so that the vehicle headlight can be designed to be smaller, lighter and simpler in structure.

[0023] 6) The light adjustment device according to the present invention can serve as an independent external dimming system to replace the traditional complex dimming structure, thereby simplifying the structure of the headlight. In addition, the light adjustment device according to the present invention can be applied to various types of light modules, thus giving new life to the related art headlight.

[0024] 7) The light adjustment device according to the present invention can be applied to dimming of multiple functions such as low beam, high beam, corner light, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The features and advantages of the embodiments of the present invention will become more easily understood through the following description with reference to the accompanying drawings, which are not drawn to scale and may magnify or reduce some features to show details of specific components. In the accompanying drawings:

[0026] Figure 1 FIG. 1 is a schematic side view of a light emitting module for a vehicle headlamp according to the related art.

[0027] Figure 2 FIG. 1 is a schematic front view of a light emitting module for a vehicle headlamp according to the related art.

[0028] Figure 3It is a schematic side view of a lamp unit for a vehicle headlamp according to an exemplary embodiment of the present invention.

[0029] Figure 4 It is a schematic front view of a lamp unit for a vehicle headlamp according to an exemplary embodiment of the present invention.

[0030] Figure 5 Schematic diagram of the light path of a lamp unit for a vehicle headlamp according to an exemplary embodiment of the present invention.

[0031] Figure 6 It is a schematic three-dimensional diagram of a light adjustment device formed as an integral piece with a lens holder according to an exemplary embodiment of the present utility model.

[0032] Figure 7 3D is a schematic perspective view of a light adjustment device that can be detachably mounted to a light-emitting module according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0033] Vehicles are complex vehicles with tens of thousands of components. How to properly utilize the interior space of a vehicle to arrange the components has always been a topic of close concern to those skilled in the art.

[0034] The inventors of this application have discovered that in the construction of a vehicle, especially in the construction of a vehicle headlight, in order to save space, it is usually necessary to arrange the various components of the vehicle very compactly. Therefore, the space in the transverse direction of the vehicle (including the front-to-back direction and the left-to-right direction of the vehicle) is usually fully utilized. On the other hand, compared with the transverse direction of the vehicle, the space utilization rate in the vertical direction (up-down direction) of the vehicle is relatively low. To explain this more clearly, the following will first refer to Figure 1 and Figure 2 A light emitting module for a vehicle headlamp according to the related art is described.

[0035] Figure 1 and Figure 2 A schematic side view and a schematic front view of a light-emitting module for a vehicle headlamp according to the related art are shown, respectively. It should be noted that, in the context of this application, a front view refers to a view viewed from the front of the vehicle (i.e., from the front of the vehicle toward the rear of the vehicle), while a side view refers to a view viewed from the left and right direction perpendicular to the front-to-back direction of the vehicle.

[0036] In an exemplary embodiment, Figure 1 and Figure 2The light emitting module 10' shown in the figure according to the related art is a poly-elliptical system module (PES module) for a vehicle headlamp, which includes a radiator 101', a reflector 102', a lens holder 103' and a lens 104'. It is understood that, although not shown, the light emitting module 10' may include a light emitting unit for emitting illumination light. During operation of the vehicle headlamp, the illumination light emitted from the light emitting unit is guided toward the lens 104' via reflection by the reflector 102', and is finally emitted to the front of the vehicle for illumination via refraction by the lens 104'.

[0037] like Figure 1 and Figure 2 As shown in , the light emitting module 10' according to the related art is arranged along the front-to-back direction of the vehicle, and when viewed from the front of the vehicle, the lens 104' of the light emitting module 10' is seen. However, as shown, in this case, the size of the light emitting module 10' in the front-to-back direction of the vehicle will be significantly larger than the size in the up-down direction of the vehicle. Therefore, compared with the up-down direction of the vehicle, the light emitting module 10' occupies more space in the front-to-back direction of the vehicle, which is undesirable for space utilization of the vehicle headlights. In addition, it is understandable that when the light emitting module for the vehicle headlight is arranged along the front-to-back direction of the vehicle, what is seen when viewed from the front of the vehicle is the lens or reflector of the light emitting module. Therefore, in order to avoid appearance defects of the lens or reflector due to the optical design, a lot of decorative rings and decorative rings are usually required for matching decoration, which is costly.

[0038] In this regard, the applicant of the present application has found that there is still room for improvement in the space utilization of vehicle headlights in the relevant technology, and it is desired that the structure of the vehicle headlights can minimize the space utilization in the front-to-rear direction of the vehicle and instead change it to the space utilization in the up-down direction of the vehicle.

[0039] The present invention will be described in detail below with reference to the accompanying drawings using exemplary embodiments. It should be noted that the following detailed description of the present invention is for illustrative purposes only and is not intended to limit the present invention. In addition, the same reference numerals are used throughout the various drawings to represent the same components.

[0040] It should also be noted that, for the sake of clarity, not all features of the actual specific implementation are described and shown in the specification and drawings. Moreover, in order to avoid unnecessary details obscuring the technical solution that the present invention focuses on, only the device structure closely related to the technical solution of the present invention is described and shown in the drawings and specification, while other details that are not closely related to the technical content of the present invention and are known to those skilled in the art are omitted.

[0041] Next, a lamp unit for a vehicle headlamp provided according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0042] First, refer to Figures 3 to 5 A lamp unit 1 for a vehicle headlamp according to an exemplary embodiment of the present invention will be described in detail.

[0043] Figure 3 and Figure 4 A schematic side view and a schematic front view of a lamp unit 1 for a vehicle headlamp according to an exemplary embodiment of the present invention are respectively shown. Figure 5 A schematic diagram shows a light path of a lamp unit 1 for a vehicle headlamp according to an exemplary embodiment of the present invention.

[0044] In some embodiments, reference Figures 3 to 5 According to an exemplary embodiment of the present invention, the lamp unit 1 may include a light emitting module 10 arranged along the vertical direction of the vehicle. The light emitting module 10 may include a light emitting surface 100, and the light emitting module 10 emits light substantially vertically upward relative to the vehicle through the light emitting surface 100. Figure 5 As shown in .

[0045] According to an exemplary embodiment of the present invention, the lamp unit 1 is arranged vertically relative to the vehicle's fore-aft direction, thereby conserving space in the vehicle's transverse direction (including both the fore-aft and left-right directions), thereby facilitating space utilization within the vehicle's headlights. Furthermore, the relatively ample vertical space within the vehicle facilitates heat dissipation within the lamp unit 1, thereby improving optical efficiency.

[0046] In order to guide the light emitted by the light emitting module 10 substantially vertically upward relative to the vehicle toward the front of the vehicle to form a desired light shape illuminating the front of the vehicle, the lamp unit 1 according to the present invention may further include a light adjustment device 20, such as Figures 3 to 5 The light adjustment device 20 is configured to adjust the light emitted from the light emitting surface 100 of the light emitting module 10, thereby forming a desired light shape for illuminating the front of the vehicle.

[0047] Reference Figures 3 to 5In some embodiments, the light adjustment device 20 may include a first reflector 201 and a second reflector 202. The first reflector 201 is configured to adjust the light emitted from the light-emitting surface 100 of the light-emitting module 10 between multiple working positions to adjust the position of the light pattern irradiating the front of the vehicle in the vertical direction, while the second reflector 202 is configured to adjust the light emitted from the light-emitting surface 100 of the light-emitting module 10 between multiple working positions to adjust the position of the light pattern irradiating the front of the vehicle in the horizontal direction. It should be understood that the adjustment of the position of the light pattern in the vertical direction and / or horizontal direction mentioned in the present invention refers to the vertical, horizontal, and / or horizontal adjustment of the light distribution screen.

[0048] In some embodiments, the first reflecting device 201 may include a first reflecting surface 2010, the second reflecting device 202 may include a second reflecting surface 2020 arranged on the side of the first reflecting surface 2010, the first reflecting surface 2010 may be arranged to face the light emitting surface 100 of the light emitting module 10 and be configured to reflect the light emitted through the light emitting surface 100 and guide it toward the second reflecting surface 2020, and the second reflecting surface 2020 is configured to reflect the light reflected through the first reflecting surface 2010 and guide it toward the front of the vehicle.

[0049] According to the lamp unit 1 provided by the present invention, by providing the first reflecting device 201 and the second reflecting device 202, light emitted from the light-emitting modules 10 arranged along the vertical direction of the vehicle and directed generally vertically upward relative to the vehicle can be directed toward the front of the vehicle, thereby illuminating the front of the vehicle. In addition, the first reflecting device 201 and the second reflecting device 202 can both be adjusted between multiple working positions to adjust the position of the light pattern illuminating the front of the vehicle in the vertical direction and the left and right directions, respectively. In this way, the light pattern can be adjusted in the vertical, left, and right directions simultaneously through the light adjusting device 20 to form the desired light pattern illuminating the front of the vehicle.

[0050] Furthermore, when viewing the lamp unit 1 provided by the present invention from the front of the vehicle, the second reflective surface 2020 of the light-emitting module 10 is visible. Therefore, the second reflective surface 2020 can be designed in a variety of ways without affecting the light pattern of the vehicle's illumination. Compared to conventional modules with fixed lenses or reflective surfaces, the present invention avoids the need for expensive decorative rings and trims to overcome the cosmetic defects caused by exposed lenses or reflectors, thereby reducing production costs.

[0051] In some embodiments, the first reflecting device 201 may include a first pivot 2011 and a first plane mirror 2012 having a first reflecting surface 2010. The first pivot 2011 may have a first pivot axis perpendicular to the vertical direction of the vehicle, and the first plane mirror 2012 is configured to pivot about the first pivot axis. By pivoting the first plane mirror 2012 about the first pivot axis of the first pivot 2011, the first plane mirror 2012 can be adjusted between multiple working positions, thereby achieving vertical movement of the light pattern irradiating the front of the vehicle.

[0052] Preferably, the pivot axis of the first pivot 2011 can pass through the geometric center of the illumination area of ​​the first reflective surface 2010 by the light emitted from the light emitting surface 100. In this way, the reflection efficiency of the first reflective surface 2010 for the light emitted from the light emitting surface 100 can be increased, making the light pattern illuminating the front of the vehicle brighter.

[0053] In some embodiments, the second reflecting device 202 may include a second pivot 2021 and a second plane mirror 2022 having a second reflecting surface 2020. The second pivot 2021 may have a second pivot axis parallel to the vertical direction of the vehicle, and the second plane mirror 2022 is configured to pivot about the second pivot axis. By pivoting the second plane mirror 2022 about the second pivot axis of the second pivot 2021, the second plane mirror 2022 can be adjusted between multiple working positions, thereby achieving left-right movement of the light pattern illuminating the front of the vehicle.

[0054] It is understandable that although Figures 3 to 5 , a PES module is shown as an exemplary embodiment of the light-emitting module 10. However, the type of the light-emitting module 10 of the present invention is not limited thereto. In other words, the light-emitting module 10 of the present invention can be selected from any suitable type, as long as the light-emitting module 10 can be arranged in the vertical direction of the vehicle and can emit light generally vertically upward relative to the vehicle.

[0055] For example, in some embodiments, the light-emitting module 10 of the present invention can be a reflective light-emitting module or a transmissive light-emitting module. It should be noted that a reflective light-emitting module is a light-emitting module that achieves road lighting through reflection from a reflector, while a transmissive light-emitting module is a light-emitting module that achieves road lighting by adding a lens in front of a primary optical element, such as a reflector or a concentrator. It is understood that by adding a lens, the lamp unit can not only better focus light when illuminated, but also have a clearer cutoff line for the low beam light shape, and the emitted light is more uniform.

[0056] In other embodiments, the light-emitting module 10 of the present invention may also be an LED direct-emitting module.

[0057] In some embodiments, the light adjustment device 20 can be integrated with the light module 10. In this way, the light adjustment device 20 and the light module 10 can together form an integrated light-emitting assembly with a dimming function, eliminating the need for a separate dimming structure for the light-emitting assembly. This allows the vehicle headlamp to be designed to be smaller, lighter, and simpler in structure.

[0058] Preferably, in some embodiments, the light emitting module 10 may be a vehicle light module including a lens, and the light emitting module 10 may further include a lens holder 101, and the first reflecting device 201 and the second reflecting device 202 may form an integral part with the lens holder 101, such as Figure 6 shown.

[0059] It is conceivable that in other embodiments, the light adjustment device 20 can be configured to be detachably mounted to the light module 10. In this manner, the light adjustment device 20 can be installed on a related art light module to dim the light of the related art light module. Therefore, the complex and bulky dimming structure of the related art can be eliminated, thereby simplifying the related art vehicle headlights and promoting the lightweight and simple development of vehicle headlights.

[0060] In addition, when the light adjustment device 20 according to the present invention is used to replace the dimming structure of the related art, the light emitting module 10 of the related art does not need to be moved or rotated for dimming, and can therefore always remain fixed, thereby increasing the stability of the system.

[0061] Preferably, in some embodiments, the light emitting module 10 may be a vehicle lamp module including a lens, and the light emitting module 10 may further include a lens holder 101, and the first reflecting device 201 and the second reflecting device 202 may be configured to be detachably mounted to the lens holder 101, such as Figure 7 As shown in .

[0062] In some embodiments, based on the shape and size of the light-emitting surface 100 of the light-emitting module 10, at least one of the following can be specifically configured: the operating position of the first plane mirror 2012; the size of the first plane mirror 2012; the operating position of the second plane mirror 2022; the size of the second plane mirror 2022; the position of the first pivot 2011; and the position of the second pivot 2021. This allows the first reflective surface 2010 and / or the second reflective surface 2020 to reflect as much light as possible from the light emitting surface 100. This allows the light adjustment device 20 to be more compatible with the light-emitting module 10, thereby improving the accuracy of adjusting the light shape irradiating the vehicle in front. Furthermore, the light adjustment device 20 according to the present application can be adapted to different light-emitting modules. In this case, the light adjustment device 20 according to the present invention can be used as an independent external dimming system to replace the traditional complex dimming structure, thereby simplifying the structure of the vehicle lamp. In addition, the light adjustment device 20 according to the present invention can be applicable to various types of light-emitting modules, thereby giving new life to the headlights of the related technology.

[0063] According to an exemplary embodiment of the present invention, a headlamp including the above-mentioned lamp unit and a vehicle including the headlamp are also provided. It is understood that the headlamp and vehicle provided by the present invention can at least achieve the various advantages described above with respect to the lamp unit 1.

[0064] In the context of the present invention, the use of directional terms such as "front," "back," "left," "right," "upper," and "lower" is for descriptive purposes only and should not be construed as limiting. Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the specific embodiments described and illustrated in detail herein. Various modifications to the exemplary embodiments may be made by those skilled in the art without departing from the scope of the present invention as defined by the claims.

[0065] The features mentioned and / or illustrated in the above description of the exemplary embodiments of the present invention may be incorporated into one or more other embodiments in the same or similar manner, combined with features in other embodiments, or substituted for corresponding features in other embodiments. The technical solutions obtained by such combination or substitution shall also be deemed to be included in the scope of protection of the present invention.

Claims

1. A lamp unit (1), characterized in that: The lamp unit (1) comprises: A light-emitting module (10), the light-emitting module (10) being arranged in an up-down direction of a vehicle, and the light-emitting module (10) comprising a light-emitting surface (100), the light-emitting module (10) emitting light vertically upward relative to the vehicle through the light-emitting surface (100); and A light adjustment device (20), the light adjustment device (20) being configured to adjust the light emitted through the light emitting surface (100) so as to form a desired light shape illuminating the front of the vehicle, The light adjustment device (20) comprises a first reflecting device (201) and a second reflecting device (202), wherein the first reflecting device (201) is configured to adjust the light emitted from the light-emitting surface (100) of the light-emitting module (10) between a plurality of working positions so as to adjust the position of the light shape in an up-down direction, and the second reflecting device (202) is configured to adjust the light emitted from the light-emitting surface (100) of the light-emitting module (10) between a plurality of working positions so as to adjust the position of the light shape in a left-right direction.

2. The lamp unit (1) according to claim 1, characterized in that: The first reflecting device (201) comprises a first reflecting surface (2010), and the second reflecting device (202) comprises a second reflecting surface (2020) arranged on the side of the first reflecting surface (2010), the first reflecting surface (2010) being arranged to face the light-emitting surface (100) of the light-emitting module (10) and being configured to reflect light emitted through the light-emitting surface (100) and guide it toward the second reflecting surface (2020), and the second reflecting surface (2020) being configured to reflect light reflected through the first reflecting surface (2010) and guide it toward the front of the vehicle.

3. The lamp unit (1) according to claim 2, characterized in that: The first reflecting device (201) includes a first pivot (2011) and a first plane mirror (2012) provided with the first reflecting surface (2010), the first pivot (2011) having a first pivot axis perpendicular to the up-down direction of the vehicle, and the first plane mirror (2012) is configured to pivot around the first pivot axis.

4. The lamp unit (1) according to claim 3, characterized in that: The first pivot axis of the first pivot (2011) passes through the geometric center of an illumination area on the first reflecting surface (2010) of light emitted through the light emitting surface (100).

5. The lamp unit (1) according to claim 2, characterized in that: The second reflecting device (202) includes a second pivot (2021) and a second plane mirror (2022) provided with the second reflecting surface (2020), the second pivot (2021) having a second pivot axis parallel to the up-down direction of the vehicle, and the second plane mirror (2022) is configured to pivot around the second pivot axis.

6. The lamp unit (1) according to claim 1, characterized in that: The light-emitting module (10) is a reflective light-emitting module or a transmissive light-emitting module.

7. The lamp unit (1) according to claim 1, characterized in that: The light adjustment device (20) is configured to be detachably mounted on the light-emitting module (10).

8. The lamp unit (1) according to claim 7, characterized in that: The light-emitting module (10) is a vehicle light module comprising a lens, and the light-emitting module further comprises a lens bracket (101), and the first reflecting device (201) and the second reflecting device (202) are configured to be detachably mounted to the lens bracket (101).

9. The lamp unit (1) according to claim 1, characterized in that: The light adjustment device (20) and the light emitting module (10) are formed as an integral part.

10. The lamp unit (1) according to claim 9, characterized in that: The light-emitting module (10) is a vehicle light module comprising a lens, and the light-emitting module further comprises a lens bracket (101), and the first reflecting device (201) and the second reflecting device (202) form an integral part with the lens bracket (101).

11. A headlamp, characterized in that: The headlamp comprises the lamp unit (1) according to any one of claims 1 to 10.

12. A vehicle, characterized in that: The vehicle comprises a headlamp according to claim 11.

Images