Lamp and vehicle
By setting white and blue light source groups on the light guide path of vehicle lamps and adjusting the switch state under different working conditions, the problem of uneven light and color of the lamps is solved, improving the lighting effect and user experience.
Patent Information
- Application Number
- CN202420747658.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-11
AI Technical Summary
Vehicle lamps are prone to uneven light and color after long-term use, especially when the light exit end will turn yellow, affecting the lighting effect.
Set a light source group of white and blue light on the light guide path of the lamp. When the white light switch is turned on, both are turned on at the same time to supplement the color mixing to ensure that the light at the outgoing light is uniform; when blue or red light is needed, the corresponding switches are turned on respectively to meet the different Required, and a second light source group is set at the outlet or inlet end for quick maintenance and space saving.
It effectively avoids the yellowish color of the light-guided light end, improves the lighting effect and user experience of the lamp, and meets the lighting needs under different working conditions.
Smart Images
Figure CN222186689U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, in particular to a lamp and a vehicle. Background Art
[0002] Lamp lighting is an important part of the vehicle use process. It can achieve the lighting and warning effects of the vehicle, which is related to the safety of the vehicle and pedestrians. With the rapid development of the automobile industry, the lighting of lamps on vehicles is mostly controlled by light guides. Lamps have white light lighting and other colored light for warning, welcoming, etc., but longer light guides will have uneven light color when controlling the lighting of lamps. There will be color difference between the light input end and the light output end, resulting in poor lighting effect of the lamp, especially when the lamp emits white light. Due to the use time of the light guide and its influence on the guiding length of the light, the light output end is prone to yellowing and affecting the user experience of the lamp.
[0003] Therefore, how to improve the lighting effect of vehicle lamps is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0004] The utility model provides a lamp and a vehicle to improve the lighting effect of the vehicle lamp.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] In a first aspect, the utility model provides a lamp, comprising a light guide and a display end, the display end being used for light display, the light guide comprising a light input end and a light output end, the light output end being connected to the display end, the light input end being provided with a first light source group capable of emitting white light, and a second light source group capable of emitting blue light being further provided on the path of the light guide;
[0007] When the white light switch of the lamp is turned on, the first light source group and the second light source group are turned on at the same time; when the blue light switch of the lamp is turned on, the first light source group is turned off and the second light source group is turned on.
[0008] Optionally, in the above-mentioned lamp, the second light source group is arranged at the light emitting end position.
[0009] Optionally, in the above-mentioned lamp, the second light source group and the first light source group are both arranged at the light incident end position.
[0010] Optionally, in the above-mentioned lamp, two groups of the second light source are provided and are respectively arranged at the light emitting end and the light incident end.
[0011] Optionally, in the above-mentioned lamp, the second light source group can also emit red light. When the red light switch of the lamp is turned on, the first light source group is turned off, and the second light source group is turned on to emit red light.
[0012] Optionally, in the above lamp, a reflective bowl is provided on a side of the first light source group facing away from the light guide, and the first light source group is arranged at a focal position of the reflective bowl.
[0013] Optionally, in the above-mentioned lamp, the reflective bowl is an ellipsoidal surface, a parabola or a spherical arc surface.
[0014] Optionally, in the above-mentioned lamp, the first light source group is a white light lamp bead that emits white light or a white light laser tube that generates a white light beam.
[0015] Optionally, in the above lamp, the light guide is made of polycarbonate or polymethyl methacrylate.
[0016] In a second aspect, the utility model provides a vehicle, on which is provided a lamp as described in any one of the above embodiments.
[0017] It can be seen from the above technical scheme that the lamp provided by the utility model includes a light guide and a display end, wherein the display end is used for lighting display, and is usually mounted on a position that can be directly observed, such as the interior or exterior of a vehicle, and the light guide is used to guide the light emitted by the LED from the PCB to the display end. The light guide specifically includes a light input end and a light output end, the light output end serves as a light outlet to communicate with the display end, and the light input end is provided with a first light source group, the first light source group is used to emit white light to meet the lighting needs of the lamp, and a second light source group that can emit blue light is also provided on the path of the light guide; for the adjustment of the lamp under different working conditions Specifically, when the lamp needs to emit white light for lighting, the white light switch of the lamp is turned on, and the first light source group and the second light source group are turned on at the same time. The white light emitted by the first light source group has a longer optical path when it reaches the light output end, which will cause the color to be yellowish. At this time, the blue light emitted by the second light source group will be mixed and supplemented with the white light emitted by the first light source group, so that the color of the light at the light output end of the light guide is uniform and white, thereby meeting the lighting needs of the lamp; and when the lamp needs to be used for special working conditions such as welcoming guests, the blue light switch of the lamp is turned on, and the first light source group is turned off and the second light source group is turned on alone, and the display end emits blue light to meet the needs of welcoming guests. The lamp provided by the utility model is provided with a first light source group and a second light source group on the light guide, and when the lamp needs to emit white light, the first light source group and the second light source group are turned on at the same time, so that the white light emitted by the first light source group is mixed and supplemented by the blue light of the second light source group, so that the light emitting end emits white light with uniform color, avoiding the yellowing problem at the light emitting end and affecting the lighting effect of the lamp; and when the lamp needs to welcome guests, the first light source group can be turned off to stop the relatively dazzling white light output, and only the second light source group is turned on to make the lamp emit blue light to meet the welcoming needs, so as to improve the application scenarios of the lamp while solving the yellowing problem of the light emitting end of the light guide in the lamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are only some examples or embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work, and the utility model can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.
[0019] Figure 1 is a schematic diagram of a light guide structure in an embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the light input end in one embodiment of the utility model;
[0021] Figure 3 for Figure 2 Schematic diagram of the light output end structure of the middle light guide;
[0022] Figure 4 This is a schematic diagram of the structure of the light input end in another embodiment of the utility model;
[0023] Among them, 10 is a light guide; 110 is a light input end; 120 is a light output end; 20 is a first light source group; and 30 is a second light source group. DETAILED DESCRIPTION
[0024] The core of the utility model is to disclose a lamp which avoids yellowing of the end and has a better lighting effect.
[0025] Another core of the present invention is to provide a vehicle comprising the above-mentioned lamp.
[0026] In order to make the technical personnel in this field better understand the present invention, the embodiments of the present invention are described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary for the solutions of the utility model described in the claims.
[0027] See also Figure 1 The lamp provided by the embodiment of the utility model includes a light guide 10 and a display end, wherein the display end is used for lighting display and is usually mounted on a position that can be directly observed, such as the interior or exterior of a vehicle. The light guide 10 is used to guide the light emitted by the LED from the PCB to the display end. The light guide 10 specifically includes a light input end 110 and a light output end 120. The light output end 120 serves as a light output to communicate with the display end, and the light input end 110 is provided with a first light source group 20, which is used to emit white light to meet the lighting needs of the lamp. At the same time, a second light source group 30 that can emit blue light is also provided on the path of the light guide 10.
[0028] The specific adjustment of the lamp under different working conditions is that when the lamp needs to emit white light for lighting, turn on the white light switch of the lamp. At this time, the first light source group 20 and the second light source group 30 are turned on at the same time. The white light emitted by the first light source group 20 has a longer optical path when reaching the light output end 120, which will cause a yellowish color problem. At this time, the blue light emitted by the second light source group 30 will be mixed and supplemented with the white light emitted by the first light source group 20, so that the color of the light at the light output end 120 of the light guide 10 is uniform and white, thereby meeting the lighting needs of the lamp.
[0029] When the lamp needs to be used for special working conditions such as welcoming guests, the blue light switch of the lamp is turned on, at which time the first light source group 20 is turned off and the second light source group 30 is turned on alone, and the display end emits blue light to meet the needs of welcoming guests.
[0030] The lamp provided by the embodiment of the utility model is provided with a first light source group 20 and a second light source group 30 on the light guide 10, and when the lamp needs to emit white light, the first light source group 20 and the second light source group 30 are turned on at the same time, so that the white light emitted by the first light source group 20 is mixed and supplemented by the blue light of the second light source group 30, so that the light output end 120 emits white light with uniform color, avoiding the yellowing problem of the light output end 120 and affecting the lighting effect of the lamp; and when the lamp needs to welcome guests, the first light source group 20 can be turned off to stop the relatively dazzling white light output, and only the second light source group 30 is turned on to make the lamp emit blue light to meet the welcoming needs, so as to improve the application scenarios of the lamp while solving the yellowing problem of the light output end 120 of the light guide 10 in the lamp.
[0031] Furthermore, the arrangement path of the light guide 10 is relatively long, and the second light source group 30 only needs to be arranged on the path of the light guide 10 to provide supplementary illumination for the first light source group 20. In some embodiments of the present invention, see Figure 2 and Figure 3 The second light source group 30 is arranged at the position of the light emitting end 120, and is arranged at the two end positions of the light guide 10 separately from the first light source group 20. When the light emitting end 120 of the light guide 10 turns yellow during use, the display end can be disassembled at the display end to conveniently inspect or replace the second light source group 30. The same applies when there is a problem with the blue light.
[0032] In other embodiments of the present invention, see Figure 4 The second light source group 30 and the first light source group 20 are both arranged at the light incident end 110 of the light guide 10 to save space on the light guide 10, and the second light source group 30 and the first light source group 20 are simultaneously hidden to protect the light sources and reduce the risk of failure of the light sources.
[0033] In order to further optimize the above technical solution, in a preferred embodiment of the utility model, two groups of second light source groups 30 are provided, and the two groups of second light source groups 30 are respectively arranged at the light output end 120 and the light input end 110, so that the white light of the first light source group 20 is mixed with blue light by the cooperation of the two second light source groups 30. The power of the two second light source groups 30 is relatively small and they play a supplementary role. On this basis, when a single second light source group 30 has a problem and stops running, the other second light source group 30 still maintains a normal operating state and continues to supplement the white light of the first light source group 20 with blue light. It can also improve the problem of yellowish light color at the light output end 120 when the light guide 10 is transmitting white light. The lamp only needs to be disassembled and replaced when both second light source groups 30 are damaged. It should be noted that the power setting of a single light source in the two second light source groups 30 is relatively small, which can also reduce the risk of damage.
[0034] It should be noted that the two second light source groups 30 can also serve as backup for each other when the lamp is used for blue light, thereby increasing the service life of the lamp.
[0035] Taking into account that vehicle lamps also have other operating conditions, such as common warning conditions, in some embodiments of the utility model, the second light source group 30 can also emit red light. When the red light switch of the lamp is turned on, the first light source group 20 is turned off, and only the second light source group 30 is turned on to the red light emitting position for red light display. When the vehicle needs to emit white light and blue light, the second light source group 30 is switched to the blue light emitting position.
[0036] Furthermore, the first light source group 20 arranged at the light incident end 110 needs to transmit light to the inside of the light guide 10 as much as possible, so that the light guide 10 can transmit a sufficient amount of light to the display end. Therefore, in some embodiments of the utility model, in order to improve the light entry effect of the first light source group 20 at the light incident end 110, the lamp also includes a reflective bowl, and a reflective bowl is arranged on the side of the first light source group 20 facing away from the light guide 10. The first light source group 20 is arranged at the focal position of the reflective bowl, so that most of the light emitted by the first light source group 20 is focused by the reflective bowl, and the light incident end 110 of the light guide 10 is preferably arranged at the position where the reflective bowl reflects the first light source group 20 after focusing, so as to receive most of the light emitted by the first light source group 20 and improve the light transmission effect.
[0037] Based on the above embodiments, the reflective bowl is preferably an ellipsoid, a parabola or a spherical arc surface to reduce the light scattering effect of the first light source group 20 and better reflect the light emitted by the first light source group 20 .
[0038] Furthermore, in the lamp provided in the embodiment of the utility model, the first light source group 20 can be a white light lamp bead capable of emitting white light, or a white light laser tube capable of generating a white light beam.
[0039] Furthermore, in order to facilitate the arrangement and improve the display effect, the light guide 10 is preferably a flexible and transparent tubular structure, and its material is preferably PC (polycarbonate) or PMMA (polymethyl methacrylate) which has a long life and a relatively low cost.
[0040] Some embodiments of the utility model further provide a vehicle, on which is provided a lamp provided by any of the above embodiments. Since the above lamp has the technical effects in the above embodiments, the vehicle also has the technical effects in the above embodiments.
[0041] It should be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the utility model can be combined with each other.
[0042] As shown in the utility model and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.
[0043] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.
[0044] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. The scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but also should cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the concept of the above-mentioned utility model. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the utility model (but not limited to) to form a technical solution.
Claims
1. A lamp, characterized in that: It includes a light guide and a display end, the display end is used for light display, the light guide includes a light input end and a light output end, the light output end is connected to the display end, the light input end is provided with a first light source group capable of emitting white light, and a second light source group capable of emitting blue light is also provided on the path of the light guide; When the white light switch of the lamp is turned on, the first light source group and the second light source group are turned on at the same time; when the blue light switch of the lamp is turned on, the first light source group is turned off and the second light source group is turned on.
2. The lamp according to claim 1, characterized in that The second light source group is arranged at the light output end.
3. The lamp according to claim 1, characterized in that: The second light source group and the first light source group are both arranged at the light incident end position.
4. The lamp according to claim 1, characterized in that: The second light source groups are provided in two groups and are respectively arranged at the light output end and the light input end.
5. The lamp according to claim 1, characterized in that: The second light source group can also emit red light. When the red light switch of the lamp is turned on, the first light source group is turned off, and the second light source group is turned on to a position of emitting red light.
6. The lamp according to claim 1, characterized in that: A reflective bowl is disposed on a side of the first light source group facing away from the light guide, and the first light source group is disposed at a focal position of the reflective bowl.
7. The lamp according to claim 6, characterized in that The reflection bowl is an ellipsoidal surface, a parabola or a spherical arc surface.
8. The lamp according to claim 1, characterized in that: The first light source group is a white light lamp bead that emits white light or a white light laser tube that generates a white light beam.
9. The lamp according to claim 1, characterized in that: The light guide is made of polycarbonate or polymethyl methacrylate.
10. A vehicle, characterized in that: A lamp as described in any one of claims 1 to 9 is provided.