Lighting system for a motor vehicle and motor vehicle comprising such a lighting system
By introducing a pivotable cover frame and light module into the vehicle lighting, the problem of incomplete light transmission of the light source under different states in the prior art is solved, realizing the "hidden before lighting" design and improving aesthetics and functionality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 海拉有限双合股份公司
- Filing Date
- 2026-04-14
- Publication Date
- 2026-05-29
Smart Images
Figure CN122107311A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a lighting system for a motor vehicle. Furthermore, this invention relates to a motor vehicle including such a lighting system. Background Technology
[0002] In motor vehicles, the exterior styling is a crucial design aspect for creating personality and brand identity. However, when designing motor vehicle components artistically or aesthetically, the functionality of those components must not be compromised; in other words, the artistic or aesthetic design of a motor vehicle component must be carried out with its function in mind. In headlights, it is essential to ensure that light escapes from the enclosed disc as unobstructed as possible. Therefore, the enclosed disc is typically transparent. However, this has the disadvantage that the interior of the headlight can be seen through the enclosed disc from the outside, which is generally undesirable from an aesthetic point of view when the headlight is off. Therefore, vehicle designers often pursue a headlight design known as "hidden before illumination." This is specifically understood as functional components, such as the low beam module, being visible only when the functional component is activated.
[0003] As known from DE102021119165A1, a motor vehicle lamp has a transparent or semi-transparent light-emitting surface, wherein the transparent or semi-transparent light-emitting surface is formed by a light-emitting wall of the lamp or an outer skin of the vehicle, the light-emitting wall or the outer skin of the vehicle is provided with at least one electrochromic layer including opaque suspended particles, and the light-emitting wall or the outer skin of the vehicle can electrically switch between an opaque state and a transparent or semi-transparent state at least regionally by means of electrical energy provided by a power source.
[0004] The drawback of this solution is that the light-emitting surface is not 100% opaque in the opaque state, and it is not 100% transparent in the transparent or semi-transparent state.
[0005] An operable cover for a functional component of a lighting lamp for a motor vehicle is known from DE102012108772B4.
[0006] According to DE102023117612A1, a lighting device for a vehicle is known, wherein a light rotating component is capable of rotating a light connecting component, such that a light generating component emits light onto a driving lens unit or a radiator grille lens unit, so as to selectively achieve driving lighting or radiator grille lighting while using the same light generating component.
[0007] DE102021102631B4 discloses another prior art. Summary of the Invention
[0008] The purpose of this invention is to provide a novel lighting system design that can achieve the function of "hiding before lighting".
[0009] This task is addressed by the subject matter of the independent claims. The dependent claims relate to advantageous further configurations.
[0010] The lighting system according to the present invention is a lighting system for motor vehicles. The lighting system has at least one lamp. The lamp is particularly a headlight for a motor vehicle.
[0011] The lighting fixture has a housing that includes a receiving space for functional components of the lighting fixture. These functional components may be, for example, a light source, electronic components, a cooling device, etc. The lighting fixture also has a closed disc disposed on the housing, which encloses the receiving space at the front. The closed disc is preferably transparent. Furthermore, the lighting fixture includes a light module disposed in the receiving space, the light module including an activatable light source. In the activated state, light is emitted by the light source. In the deactivated state, light is preferably not emitted by the light source. Alternatively, in principle, it is also possible to emit light in the deactivated state at a significantly reduced intensity compared to the activated state.
[0012] The optical module has an optical system. The optical system may include, for example, one or more lenses and / or one or more mirrors. The optical system is designed to shape light emitted by the light source and emit it towards the enclosed disk via a light-emitting surface, thereby producing a desired light distribution in the external space in front of the vehicle. The lighting lamp also includes a cover frame, wherein the cover frame is fixedly disposed in the receiving space. Furthermore, the lighting lamp includes a pivotable, particularly reversible, support frame, wherein at least the optical system is fixed in the support frame. Thus, at least the optical system can pivot via the pivoting of the support frame, i.e., be switched from a first terminal position to a second terminal position and from the second terminal position to the first terminal position. In the first terminal position, the light-emitting surface is disposed in a covered area that prevents external viewing by the cover frame, and in the second terminal position, the light-emitting surface is disposed outside the covered area that prevents external viewing by the cover frame. In other words, in the first terminal position, the light-emitting surface is covered by the cover frame, making it invisible from the outside. However, in this first terminal position, the light-emitting surface cannot emit light towards the enclosed disk to produce the desired light distribution in the external space in front of the vehicle. Conversely, this is possible in the second terminal position. Furthermore, the lighting lamp includes a driver designed to pivot the support frame about the pivot axis. The driver may, for example, be an electric motor.
[0013] The lighting system can operate in a first operating mode and a second operating mode, or in other words, it has a first operating mode and a second operating mode. In the first operating mode, the light source is deactivated and the support frame is switched to a first terminal position. In the second operating mode, the light source is activated and the support frame is switched to a second terminal position.
[0014] Therefore, in the first operating mode where the light source is deactivated, the light emitting surface is covered by the covering frame; conversely, in the second operating mode, the light source is activated and the light emitting surface is not covered by the covering frame. This achieves a "hidden before lighting" design for the lighting module.
[0015] It is particularly advantageous that the covering frame is completely opaque. Alternatively, it could be considered that the covering frame is translucent but not transparent, especially for aesthetic reasons.
[0016] Preferably, the angular difference between the first terminal position and the second terminal position is at least 10°. Preferably, the angular difference between the first terminal position and the second terminal position is at most 70°.
[0017] It is entirely conceivable that the support frame is formed from the housing of the optical module.
[0018] A particularly advantageous feature is that the lighting system includes a lighting control device designed to manipulate the light module and the driver such that, upon switching to a first operating mode, the light source is deactivated and the support frame is moved to a first terminal position, and upon switching to a second operating mode, the light source is activated and the support frame is moved to a second terminal position. The lighting control device can be implemented as a software function within the vehicle's control module.
[0019] In principle, it is conceivable that the light source is fixedly positioned within the housing. The optical system may be, for example, a reflector received or fixed within the support frame, such that the reflector can be opened and closed by pivoting from a first end position to a second end position.
[0020] It is particularly advantageous that the entire optical module is fixed in the support frame.
[0021] It is particularly advantageous that the optical system is fixedly positioned relative to the light source of the optical module.
[0022] It is particularly advantageous that the covering frame has an interruption in the pivot region of at least the optical system, wherein the light shield is connected to the support frame, or the optical module forms a light shield, wherein the light shield is configured such that the light shield covers the interruption in a first terminal position.
[0023] In particular, it is advantageous in this embodiment that the externally visible surface of the light-shielding body in its first terminal position is adapted to the externally visible surface of the covering frame.
[0024] It is particularly advantageous that the light module is a high beam module and / or low beam module for generating high beam and / or low beam distribution in the external space in front of the vehicle in the second operating mode.
[0025] In a preferred embodiment, with the lighting fixture installed in the motor vehicle, the pivot axis extends parallel to or substantially parallel to the lateral direction of the vehicle. Here, "substantially parallel" is specifically understood to mean that the angular deviation between the pivot axis and the lateral direction of the vehicle is less than 5°.
[0026] This implementation, with a pivot axis that is parallel or substantially parallel to the vehicle's lateral orientation and thus substantially horizontal, is reminiscent of the flip-up headlights often found in sports cars in the past. Therefore, this design is particularly appealing to those who value sporty design.
[0027] Another advantage of a pivot axis that is parallel or substantially parallel to the vehicle's longitudinal orientation is that it avoids glare for road users on the side of the vehicle when switching operating modes.
[0028] In principle, it is conceivable that activation and / or deactivation and pivoting of the support frame occur concurrently, especially simultaneously, during the switching of operating modes. However, it is also conceivable that activation and / or deactivation and pivoting of the support frame occur staggered in time during the switching of operating modes, especially that pivoting precedes activation when switching to the second operating mode, and deactivation precedes pivoting when switching to the first operating mode.
[0029] Another advantage of a pivot axis oriented parallel to or substantially parallel to the vehicle's longitudinal direction is that the same drive can also be used to adjust the illumination distance of the light distribution. Particularly advantageous in this case is the ability to change the second end position to enable the adjustment of the illumination distance of the light distribution. For example, it is conceivable that the lighting system is designed to store changes in angular position from the second end position for illumination distance adjustment, and to store the changed angular position relative to the second end position as a new second end position, so that when switching back from the first operating mode to the second operating mode, the drive moves to the new second end position.
[0030] As is particularly advantageous, in the state where the lighting lamp is installed in the motor vehicle, the light emitting surface is positioned higher in the second terminal position along the vehicle height direction than in the first terminal position.
[0031] Considered particularly advantageously, an additional optical module is fixed in the same support frame, the additional optical module comprising an additional activatable light source and an additional optical system, wherein, in the activated state of the additional light source, light is emitted by the additional light source, wherein the additional optical system is designed to shape the light emitted by the additional light source and emit it toward the enclosed disk via an additional light emitting surface, thereby producing an additional desired light distribution in the external space in front of the vehicle, wherein, in the second terminal position, the additional light emitting surface is disposed in the covered area preventing external viewing through the cover frame, and in the first terminal position, the additional light emitting surface is disposed outside the covered area preventing external viewing through the cover frame.
[0032] The additional light module may be, for example, a daytime running light module. Especially when the light module is a high beam module and / or a low beam module, the daytime running light module does not need to be activated in the second operating mode. Therefore, it is particularly advantageous to activate the additional light source in the first operating mode, and especially to deactivate the additional light source in the second operating mode.
[0033] It is particularly advantageous that the additional optical module is positioned above the optical module along the vehicle height direction, and in particular fixed to the upper side of the optical module.
[0034] In a particularly preferred embodiment, the covering frame is configured such that, in a first terminal position, the additional light-emitting surface is positioned within the light-emitting window, and in a second terminal position, the light-emitting surface is positioned within the light-emitting window. In other words, the same light-emitting window is used by both the optical module and the additional optical module. Thus, a similar appearance of the vehicle can be achieved regardless of whether the optical module is activated or the additional optical module is activated, especially during daytime running lights and low beam and / or high beam.
[0035] The motor vehicle according to the invention has a lighting system according to the invention. Therefore, the description of the advantages and advantageous embodiments of the lighting system applies accordingly to the motor vehicle, and vice versa. Attached Figure Description
[0036] The invention will be explained in more detail with the aid of embodiments in the following figures, but is not limited to these embodiments.
[0037] Figure 1 Showing a front view of the motor vehicle;
[0038] Figure 2 A schematic diagram of a motor vehicle lighting lamp according to a first embodiment in a first operating mode is shown;
[0039] Figure 3 The basis shown in the second operating mode Figure 2 The lighting fixtures;
[0040] Figure 4 A schematic diagram of a motor vehicle lighting lamp according to the second embodiment in a first operating mode is shown;
[0041] Figure 5 The basis shown in the second operating mode Figure 4 The lighting. Detailed Implementation
[0042] Figure 1 The drawing shows a front view of the motor vehicle 10, and is therefore a view from the front. In the drawing, the vehicle's height direction is indicated by arrow Z, the vehicle's lateral direction by arrow Y, and the vehicle's longitudinal direction by arrow X.
[0043] The motor vehicle 10 has a lighting system comprising two headlights 20, wherein the headlights 20 are the headlights of the motor vehicle 10. The lighting system also has a lighting control device for operating the functional components of the headlights 20. The headlights 20 are mirror-symmetrical to each other and otherwise substantially identical in construction; therefore, only one headlight 20 and its functional components are described in detail below. These descriptions apply accordingly to the other headlight 20.
[0044] According to the lighting lamp 20 of the first embodiment, Figure 2 and 3 This is illustrated schematically. Here... Figure 2 and 3 The lighting 20 is shown in different operating modes, wherein, Figure 2 The lighting 20 is shown in the first operating mode, and in which Figure 3 Lighting lamp 20 is shown in the second operating mode. The differences between the first and second operating modes will be further explained below.
[0045] The lighting lamp 20 has a housing 21, which includes a receiving space 30 for functional components of the lighting lamp 20. The housing 21 is closed on the front side by a transparent or at least partially transparent enclosing disc 22. The enclosing disc 22 is in particular made of plastic. A light module 40 is disposed in the receiving space 30, wherein the light module 40 has at least one activatable light source. The at least one activatable light source may be, for example, an LED. Here, the light module 40 is a low beam module. However, the light module may also be a high beam module or a combined low beam and high beam module. The at least one activatable light source is designed to emit light in the activated state of the light source. In the combined low beam and high beam module, it is conceivable in principle that the light source has a first activated state configured for low beam and a second activated state configured for high beam. In the deactivated state of the light source, the light source does not emit light. The optical module 40 has an optical system designed to shape the light emitted by the light source and emit it toward the enclosed disk 22 via the light emitting surface 42, thereby producing a desired light distribution in the external space in front of the vehicle 10.
[0046] The headlight 20 has a cover frame 50, which is fixedly disposed in the receiving space 30. Here, in a side view, the cover frame 50 extends from the lower front to the upper rear through the receiving space 30. Thus, along the driving direction, or along the longitudinal direction of the vehicle, a portion of the receiving space 30 is covered from the front by the cover frame 50 to an external observer.
[0047] The lighting lamp 20 further has a pivotable support frame 60 in which the light module 40 is fixed. The support frame 60 is pivotally supported in the housing 21 about a pivot axis A that extends substantially horizontally and parallel to the lateral direction Y of the vehicle. Thus, the light module 40 can be mounted on the housing 21. Figure 2 The first terminal position shown pivots to at Figure 3 In the second terminal position shown.
[0048] Such as especially by Figure 2It can be concluded that in the first terminal position, the light emitting surface 42 is located in the shielding area that is prevented from being viewed from the outside by the shielding frame 50, that is, it is pivoted behind the front section of the shielding frame 50 and thus shielded by it.
[0049] Conversely, in the second terminal position, the light emitting surface 42 is positioned outside the shielding area prevented from external viewing by the shielding frame 50, i.e., pivoting upwards out of the front section of the shielding frame 50. The lighting lamp 20 has a driver (not shown) for pivoting the support frame 60 about the pivot axis A.
[0050] Set to: In Figure 2 In the first operating mode shown, the light source is deactivated and the support frame 60 is switched to the first terminal position; conversely, in the second operating mode... Figure 3 In the second operating mode shown, the light source is activated and the support frame 60 is switched to the second terminal position. This achieves the "hidden before illumination" design of the lighting lamp 20.
[0051] Here, the cover frame 50 has an interruption 51 in the pivot region of the optical module 40, wherein the optical module 40 forms a light-shielding body, wherein the light-shielding body is configured such that it covers the interruption 51 in a first terminal position, i.e., is flush with the interruption. Here, the externally visible surface of the light-shielding body in the first terminal position is adapted to the externally visible surface of the cover frame 50.
[0052] Figure 4 and 5 A second embodiment of the lighting lamp 20 is shown, wherein, Figure 4 The lighting 20 is shown in the first operating mode, and in which Figure 5 Lighting 20 is shown in the second operating mode.
[0053] The main difference between the second embodiment of the lighting lamp 20 and the first embodiment is that the lighting lamp 20 has an additional light module 70, which includes an additional activatable light source and an additional optical system. When the additional light source is activated, light is emitted from it. The additional optical system is designed to shape the light emitted by the additional light source and emit it towards the enclosed disk 22 via an additional light exit surface 72, thereby creating an additional desired light distribution in the external space in front of the vehicle 10. Here, the additional light module 70 is a daytime running light module.
[0054] The additional optical module 70 is positioned above and fixed to the optical module 40 along the vehicle height direction Z. The cover frame 50 has a light-emitting window 52, wherein, in a first terminal position, the additional light-emitting surface 72 is positioned within the light-emitting window 52, and in a second terminal position, the light-emitting surface 42 is positioned within the light-emitting window 52. Here, the cover frame 50, or light-emitting window 52, is configured such that, in the second terminal position, the additional light-emitting surface 72 is positioned within a cover area that prevents external viewing through the cover frame 50.
[0055] List of reference numerals
[0056] 10 motor vehicles
[0057] 20 lights
[0058] 21 shell
[0059] 22 closed discs
[0060] 30 Acceptance Space
[0061] 40 optical modules
[0062] 42 light-emitting surfaces
[0063] 50 Covering Frame
[0064] 51 Interruption Section
[0065] 52 light output windows
[0066] 60 support frame
[0067] 70 additional optical modules
[0068] 72 Other light-emitting surfaces
[0069] A pivot axis
[0070] X Vehicle longitudinal direction
[0071] Y vehicle lateral direction
[0072] Z Vehicle height direction
Claims
1. A lighting system for a motor vehicle (10), wherein, The lighting system has at least one lighting lamp (20), wherein the lighting lamp (20) has: - A housing (21) including a receiving space (30) for the functional components of the lighting lamp (20). - A closed disc (22) disposed on the housing (21) that closes the receiving space (30) on the front side. - An optical module (40) disposed in the receiving space (30), the optical module including an activatable light source and an optical system, wherein light is emitted by the light source in an activated state, and wherein the optical system is designed to shape the light emitted by the light source and emit it toward the enclosed disk (22) via a light emitting surface (42), thereby producing a desired light distribution in the external space in front of the vehicle (10). - A cover frame (50), wherein the cover frame (50) is fixedly disposed in the receiving space (30), - A pivotable support frame (60), wherein at least the optical system is fixed in the support frame (60), wherein the support frame (60) is pivotally supported in the housing (21) about a pivot axis (A) to allow at least the optical system to be switched from a first terminal position to a second terminal position and from a second terminal position to a first terminal position, wherein in the first terminal position, the light emitting surface (42) is disposed in a shielded area protected from external viewing by the shielding frame (50), and in the second terminal position, the light emitting surface (42) is disposed outside the shielded area protected from external viewing by the shielding frame (50). - A driver, wherein the driver is designed to pivot the support frame (60) about the pivot axis (A), The lighting system has a first operating mode and a second operating mode. In the first operating mode, the light source is deactivated and the support frame (60) is switched to a first terminal position. In the second operating mode, the light source is activated and the support frame (60) is switched to a second terminal position.
2. The lighting system according to claim 1, wherein, The lighting system has a lighting control device, wherein the lighting control device is designed to operate the light module (40) and the driver such that when switching to a first operating mode, the light source is deactivated and the support frame (60) is switched to a first terminal position, and when switching to a second operating mode, the light source is activated and the support frame (60) is switched to a second terminal position.
3. The lighting system according to claim 1 or 2, wherein, When switching to the second operating mode, the support frame (60) is first moved to the second terminal position and then the light source is activated. When switching to the first operating mode, the light source is first deactivated and then the support frame (60) is moved to the first terminal position.
4. The lighting system according to any one of the preceding claims, wherein, The optical module (40) is fixed in the support frame (60).
5. The lighting system according to any one of the preceding claims, wherein, The cover frame (50) has an interruption (51) in the pivot region of at least the optical system, wherein the light shield is connected to the support frame (60), or the optical module (40) forms a light shield, wherein the light shield is configured such that the light shield covers the interruption (51) in a first terminal position.
6. The lighting system according to any one of the preceding claims, wherein, The optical module (40) is a high beam module and / or low beam module used to generate high beam distribution and / or low beam distribution in the external space in front of the motor vehicle (10) in the second operating mode.
7. The lighting system according to any one of the preceding claims, wherein, With the lighting lamp (20) installed in the motor vehicle (10), the pivot axis (A) extends parallel to or substantially parallel to the lateral direction (Y) of the vehicle.
8. The lighting system according to claim 7, wherein, The position of the second terminal can be changed so that the illumination distance of the light distribution can be adjusted.
9. The lighting system according to claim 7 or 8, wherein, When the lighting lamp (20) is installed in the motor vehicle (10), the light emitting surface (42) is positioned higher in the second terminal position along the vehicle height direction (Z) than in the first terminal position.
10. The lighting system according to any one of the preceding claims, wherein, An additional optical module (70) is fixed in the same support frame (60), the additional optical module comprising an activatable additional light source and an additional optical system, wherein, in the activated state of the additional light source, light is emitted by the additional light source, wherein the additional optical system is designed to shape the light emitted by the additional light source and emit it toward the enclosed disk (22) via an additional light emitting surface (72), thereby generating an additional desired light distribution in the external space in front of the vehicle (10), wherein, in the second terminal position, the additional light emitting surface (72) is disposed in a covered area that is protected from external viewing by the cover frame (50), and in the first terminal position, the additional light emitting surface (72) is disposed outside the covered area that is protected from external viewing by the cover frame (50).
11. The lighting system according to claim 10, wherein, In the first operating mode, the additional light source is activated; particularly in the second operating mode, the additional light source is deactivated.
12. The lighting system according to claim 11, wherein, The other light module (70) is a daytime running light module.
13. The lighting system according to any one of claims 10 to 12, wherein, The covering frame (50) has a light emitting window (52), wherein, in a first terminal position, the additional light emitting surface (72) is positioned in the light emitting window (52), and in a second terminal position, the light emitting surface (42) is positioned in the light emitting window (52).
14. The lighting system according to any one of the preceding claims, wherein, The covering frame (50) is completely opaque.
15. A motor vehicle, including a lighting system according to any one of the preceding claims.