Vehicle decoration lamp structure and vehicle

Abstract

The vehicle decorative lamp structure comprises a light source and a lampshade, the light source is provided with a light emitting part used for emitting light rays, the lampshade and the light source are arranged in a spaced mode, the lampshade comprises a light transmitting part and a light shading part, the light transmitting part protrudes out of the light shading part in the direction away from the light source, and the light shading part protrudes out of the light source in the direction away from the light source. The light-transmitting part is provided with a light inlet surface facing the light source and a light outlet surface far away from the light source, and the line segment lengths of any light rays emitted by the light source between the light inlet surface and the light outlet surface are basically consistent, so that the loss of the light rays penetrating through the light-transmitting part is basically consistent, and the brightness of the light-transmitting part is uniform; the occurrence of shadows, dark spots and the like is effectively reduced, and the aesthetic property of the vehicle decorative lamp structure is improved. The utility model is applied to the field of vehicle decorating parts.

Description

Technical Field

[0001] The utility model relates to the field of vehicle decorative parts, in particular to a vehicle decorative lamp structure and a vehicle. Background Art

[0002] In the vehicle's through-type taillights, the protruding decorative frame feature structure forms dark shadows and dark spots, causing unsightly appearances. The reason is: the decorative frame is made through a two-color injection molding process, the red layer has a protruding feature, and the structure is similar to a trapezoid. The thickness at the angle between the hypotenuse and the upper base of the trapezoid is thicker than the oblique surface and the top surface. Light passes through red light-transmitting layers of different thicknesses, resulting in darker brightness in areas where the red layer is thicker, and unsightly shadows, dark spots, and other unsightly issues are generated at the corners. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a vehicle decorative lamp structure that can maintain consistent brightness and make the decorative lamp more beautiful.

[0004] A vehicle having the above-mentioned vehicle decorative lamp structure is also provided.

[0005] The vehicle decorative lamp structure according to the first embodiment of the present utility model includes:

[0006] a light source having a light emitting portion for emitting light;

[0007] a lampshade spaced apart from the light source, the lampshade comprising a light-transmitting portion and a light-shielding portion, the light-transmitting portion protruding from the light-shielding portion in a direction away from the light source, the light-transmitting portion having a light-incoming surface facing the light source and a light-emitting surface away from the light source;

[0008] Among them, the surface perpendicular to the length direction of the lampshade is defined as the projection surface, the projection of the light-emitting part in the projection surface is the light-emitting area, the projection of the light-emitting surface in the projection surface is the light-emitting light segment, the projection of the light-incoming surface in the projection surface is the light-incoming light segment, and the set of lines connecting any point within the light-emitting area and any point on the light-emitting light segment and passing through the light-incoming light segment is the light path line set. The light path lines include a first line segment located between the light-emitting light segment and the light-incoming light segment. The minimum length of the first line segment is L1, and the maximum length of the first line segment is L2. In the light path line set, each of the first line segments satisfies: 0.75≤L1 / L2≤1.

[0009] The vehicle decorative lamp structure according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: the optical path line can be regarded as the actual optical path taken by the light emitted by the light source, the first line segment is the penetrating optical path of the light entering from the light input surface and emitted from the light output surface, and in the set of all first line segments, the ratio of the minimum length to the maximum length of the first line segment is between 0.75 and 1, that is, the minimum penetrating optical path and the maximum penetrating optical path of the light passing through the light input surface and the light output surface are close, so that the loss rate of the light emitted in different directions in the penetrating optical path is close, and thus the brightness of each position of the light output surface of the light-transmitting portion is basically consistent, thereby avoiding the generation of shadows and dark spots and improving the aesthetics of the vehicle decorative lamp.

[0010] According to some embodiments of the present invention, in the optical path line set, each of the first line segments satisfies: 0.99≤L1 / L2≤1.

[0011] According to some embodiments of the present invention, the light-incoming surface and the light-emitting surface are parallel planes to each other;

[0012] Among them, in the optical path line set, the optical path line perpendicular to the outgoing light segment includes the first line segment with the smallest length, the outgoing light segment has a first endpoint, and the optical path line connected to the first endpoint includes the first line segment with the largest length.

[0013] According to some embodiments of the present invention, the light source has an optical axis, and an optical axis formed by the optical axis and the projection surface is perpendicular to the outgoing light segment, and the foot of the perpendicular is the midpoint of the outgoing light segment.

[0014] According to some embodiments of the present invention, the thickness of the shading portion is H1, and the vehicle decorative light structure satisfies: H1 ≥ 1 mm.

[0015] According to some embodiments of the present invention, the lampshade further includes a sealing portion, and the sealing portion is provided between the light-transmitting portion and the light-shielding portion.

[0016] According to some embodiments of the present invention, the width of the sealing portion is W, and the vehicle decorative light structure satisfies: W≈0.5 mm.

[0017] According to some embodiments of the present invention, the thickness of the light-transmitting portion protruding from the light-shielding portion is H2, and H2 is ≥ 2 mm.

[0018] According to some embodiments of the present invention, the demoulding angle of the light-transmitting portion is d, and the vehicle decorative lamp structure satisfies: d≥7°.

[0019] According to some embodiments of the present invention, the lampshade further includes a light-transmitting connecting portion, which is connected to the light-transmitting portion and is shielded by the light-shielding portion.

[0020] According to some embodiments of the present invention, the thickness of the light-transmitting connecting portion is H3, and the vehicle decorative light structure satisfies: H3 ≥ 2 mm.

[0021] The vehicle according to the second embodiment of the present invention includes: the vehicle decorative light structure according to the first embodiment, wherein the projection surface is parallel to the XZ plane of the vehicle.

[0022] The vehicle according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: the vehicle adopts the vehicle decorative light structure of the embodiment of the first aspect, the brightness of the decorative light can be kept consistent, the generation of shadows and dark spots is avoided, and the shape of the decorative light is more beautiful.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 A schematic diagram of a lampshade structure in the related art;

[0026] Figure 2 The figure is a schematic structural diagram of a vehicle decorative light structure according to an embodiment of the present utility model.

[0027] Figure Number:

[0028] Light source 100; light emitting unit 110;

[0029] Lampshade 200; light-transmitting portion 210; light-shielding portion 220; light-transmitting connecting portion 230;

[0030] Light emitting area 300;

[0031] Exit light segment 400;

[0032] Incoming light segment 500;

[0033] First line segment 600;

[0034] The minimum length L1 of the first line segment; the maximum length L2 of the first line segment; the thickness H1 of the light-shielding portion; the thickness H2 of the light-transmitting portion protruding from the light-shielding portion; the thickness H3 of the light-transmitting connecting portion; and the demoulding slope d. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of this utility model, "a number" refers to one or more, and "a plurality" refers to two or more. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] In the description of the present utility model, the directions such as up, down, front, back, left and right involved refer to the direction of the car in the vehicle O-XYZ coordinate system, the origin O coincides with the center of mass of the vehicle, the front end refers to the X direction parallel to the ground pointing forward, the rear end refers to the X direction parallel to the ground pointing backward, the left side refers to the Y direction parallel to the ground pointing to the driver's left side, the right side refers to the Y direction parallel to the ground pointing to the driver's right side, the upper end refers to the Z direction pointing upward through the point O, and the lower end refers to the Z direction pointing downward through the point O.

[0040] With the rapid development of the automotive industry, taillights are playing an increasingly important role in vehicle design. Taillight innovations not only meet functional needs but also emphasize design and recognition. In recent years, the overall design trend of automotive taillights has gradually shifted from separate designs to through-type designs. The emergence of LED and OLED lighting technologies, in particular, has been crucial in driving the popularity of through-type taillights.

[0041] A through-type taillight refers to a through-type light bar that connects the left and right sides of the vehicle along the Y-axis. In related art, multiple LEDs or OLEDs are arranged along the length of the through-type taillight, also known as the Y-axis. This allows the through-type taillight to create a variety of light designs, such as a marquee or flowing light, along its length. Furthermore, the brightness distribution along the through-type taillight is uniform. However, dark shadows and spots still exist along the width of the through-type taillight, creating an unsightly appearance.

[0042] In the related art, the lampshade structure of the through-type taillight uses a two-color injection molding process, which includes a black layer and a red layer. The black layer serves as a light shield and serves as a substrate to highlight the red layer. The red layer has a styling requirement, and the light-transmitting portion of the red layer protrudes from the black layer. In order to ensure that the solidification time of the plastic parts is basically consistent during the injection molding process and to avoid defects, the thickness of the red layer is basically the same, resulting in the protruding portion of the red layer forming a protruding bulge on the light-emitting side of the lampshade and a concave depression on the low-beam side of the lampshade. When the light emitted by the light source enters from the recessed notch and is emitted from the protruding corner, the distance traveled by the light is at least twice the thickness of the red layer, resulting in excessive difference in light loss rate, and thus making the protruding corner position where the red layer is thicker darker, and the center position where the red layer has a uniform thickness is brighter. Along the width direction of the through-type taillight, that is, the Z-axis direction of the vehicle, the center part of the red layer is the brightest, and dark shadows and dark spots are generated on both sides, making the shape of the through-type taillight unsightly. For example, referring to Figure 1 As shown, the length of the light passing through the position of uniform thickness of the red layer is 2.5mm, that is, the minimum length L1 of the light passing through the red layer is 2.5mm, and the length of the light entering from the concave notch and emitting from the convex corner is 5.071mm, that is, the maximum length L2 of the light passing through the red layer is 5.071mm. The light loss rate is more than doubled, resulting in the center of the red layer being the brightest along the width direction of the through-type taillight, and dark shadows and dark spots appearing on both sides, making the through-type taillight unsightly.

[0043] Based on this, refer to Figure 2As shown, the embodiment of the first aspect of the present invention proposes a vehicle decorative lamp structure, which includes: a light source 100 and a lampshade 200, the light source 100 has a light-emitting portion 110 for emitting light, the lampshade 200 is spaced apart from the light source 100, the lampshade 200 includes a light-transmitting portion 210 and a light-shielding portion 220, the light-transmitting portion 210 protrudes from the light-shielding portion 220 in a direction away from the light source 100, the light-transmitting portion 210 has a light-incoming surface facing the light source 100 and a light-outgoing surface away from the light source 100, wherein the line segment length of any light emitted by the light source 100 between the light-incoming surface and the light-outgoing surface is basically the same, so that the loss of light passing through the light-transmitting portion 210 is basically the same, thereby making the brightness of the light-transmitting portion 210 uniform, effectively reducing the occurrence of shadows, dark spots, etc., and improving the aesthetics of the vehicle decorative lamp structure.

[0044] In this embodiment, the light source 100 is a lighting structure such as an LED or OLED lamp. The light source 100 includes a light-emitting portion 110 for emitting light. The light-emitting portion 110 can be in a three-dimensional shape, such as a rectangular or cylindrical shape, such as a lamp bead, or in a flat shape, such as a rectangular or circular surface, such as a surface-mounted lamp. The vehicle decorative lamp structure can include one or more light sources 100 arranged along the width of the lampshade 200, i.e., along the vehicle's Z-axis.

[0045] In this embodiment, the vehicle decorative light structure is a through-type taillight, and the lampshade 200 is a long strip of the through-type taillight. The long strip of lampshade 200 includes multiple segments, generally including three or more segments. The lampshade 200 is manufactured by a two-color injection molding process. The light-transmitting portion 210 is made of a red material with good light-transmitting performance, and the light-shielding portion 220 is made of a black material with good light-shielding performance. Both the light-transmitting portion 210 and the light-shielding portion 220 are made of plastic. The lampshade 200 is spaced apart from the light source 100. The spacing between the lampshade 200 and the light source 100 allows the light emitted by the light source 100 to be distributed throughout the light-transmitting portion 210 of the lampshade 200, thereby preventing the light emitted by the light source 100 from causing local overbrightness. The light-shielding portion 220 can also block the lower brightness portion of the light source 100, thereby preventing the formation of shadows or dark spots. The light-transmitting portion 210 protrudes from the light-shielding portion 220 in a direction away from the light source 100, so that the light-transmitting portion 210 can still have a shape and the vehicle decorative light structure is more beautiful; the light-transmitting portion 210 has a light-input surface facing the light source 100 and a light-output surface away from the light source 100. In other words, the light emitted by the light source 100 enters the light-transmitting portion 210 from the light-input surface and is emitted from the light-output surface to the outside of the light-transmitting portion 210.

[0046] The length direction of the lampshade 200 refers to the length of the through-type taillight, which is the Y-axis direction of the vehicle when the through-type taillight is installed on the vehicle. The plane perpendicular to the length direction of the lampshade 200 is defined as the projection plane. The projection of the light-emitting portion 110 within the projection plane is the light-emitting area 300. This projection area can be a rectangular area, a combination of a rectangular and a fan-shaped area, or a light-emitting line segment. The projection of the light-emitting surface within the projection plane is the light-emitting line segment 400, and the projection of the light-incoming surface within the projection plane is the light-incoming line segment 500.

[0047] The set of lines connecting any point within the light-emitting area 300 and any point on the outgoing light segment 400 and passing through the incoming light segment 500 is the optical path line set. The optical path line can represent the distance traveled by the light emitted by the light source 100 that can pass through the light-transmitting portion 210. The optical path line set is the set of distances traveled by all light rays emitted by the light source 100 that can pass through the light-transmitting portion 210. The optical path lines include a first line segment 600 located between the outgoing light segment 400 and the incoming light segment 500. The first line segment 600 is the distance traveled by the light that can pass through the light-transmitting portion 210 within the light-transmitting portion 210. The first line segment 600 has a minimum length and a maximum length. The minimum length of the first line segment 600 is L1, and the maximum length of the first line segment 600 is L2. In the optical path line set, each first line segment 600 satisfies: 0.75≤L1 / L2≤1.

[0048] It is worth understanding that the optical path line can be regarded as the actual optical path taken by the light emitted by the light source 100, and the first line segment 600 is the penetration optical path of the light entering from the light input surface and emitting from the light output surface. In the set of all first line segments 600, the ratio of the minimum length to the maximum length of the first line segment 600 is between 0.75 and 1, that is, the minimum penetration optical path and the maximum penetration optical path of the light passing through the light input surface and the light output surface are close, so that the loss rate of the light emitted in different directions in the penetration optical path is close, and thus the brightness of each position of the light output surface of the light-transmitting portion 210 is basically the same, that is, the visual effect uniformity of the light output surface of the light-transmitting portion 210 is basically the same, avoiding the generation of shadows and dark spots, and improving the aesthetics of the vehicle decorative lights.

[0049] Reference Figure 2 As shown, in some specific embodiments of the present invention, in the optical path line set, each first line segment 600 satisfies: 0.99≤L1 / L2≤1.

[0050] It is worth understanding that the ratio of the minimum first line segment 600 to the maximum first line segment 600 is smaller, and the distance traveled by the optical path line within the light-transmitting portion 210 is closer, so that the loss of all light passing through the light-transmitting portion 210 is basically the same, and the visual effect uniformity of the light-emitting surface of the light-transmitting portion 210 is basically the same.

[0051] Reference Figure 2As shown, in some specific embodiments of the present invention, the light-input surface and the light-output surface are planes parallel to each other; wherein, in the optical path line set, the optical path line perpendicular to the output light segment 400 includes a first line segment 600 of the minimum length, the output light segment 400 has a first endpoint, and the optical path line connected to the first endpoint includes a first line segment 600 of the maximum length.

[0052] It is worth understanding that the light-entering surface and the light-emitting surface are parallel to each other, and the distance between the light-entering surface and the light-emitting surface is basically the same, so that the distance traveled by the light path line between the light-entering surface and the light-emitting surface is basically the same, and thus the loss rate of all light passing through the light-transmitting portion 210 is basically the same, and the visual effect uniformity of the light-emitting surface of the light-transmitting portion 210 is basically the same.

[0053] In this embodiment, the light-incoming surface and the light-emitting surface may be plane surfaces, or may be arcuate surfaces parallel to each other, or may have other shapes and structures.

[0054] Reference Figure 2 As shown, in some specific embodiments of the present invention, the light source 100 has an optical axis, and the optical axis formed by the optical axis on the projection surface is perpendicular to the outgoing light segment 400, and the foot of the perpendicular is the midpoint of the outgoing light segment 400.

[0055] It is worth understanding that along the width direction of the lampshade 200, that is, the Z-axis direction of the vehicle, the light source 100 is arranged at the center position of the lampshade 200, and the distance from the light source 100 to the two sides of the lampshade 200 is basically the same, and the distance from the light source 100 to the two sides of the lampshade 200 is also basically the same. The light source 100 has little effect on the brightness of the lampshade 200 along the width direction of the lampshade 200, so that the brightness distribution of the lampshade 200 is more uniform, and the visual effect uniformity of the light-emitting surface of the light-transmitting portion 210 is basically consistent.

[0056] Reference Figure 2 As shown, in some specific embodiments of the present invention, the thickness of the light shielding portion 220 is H1, and the vehicle decorative light structure satisfies: H1 ≥ 1 mm.

[0057] It is worth understanding that along the thickness direction of the lampshade 200, that is, the X-axis direction of the vehicle, the thickness of the shading portion 220 exceeds 1 mm, that is, the thickness of the weakest position of the shading portion 220 can also exceed 1 mm. The thickness of the shading portion 220 can ensure the shading effect of the shading portion 220, so that the boundary between the shading portion 220 and the light-transmitting portion 210 is clear, so as to better highlight the light-transmitting effect of the light-transmitting portion 210.

[0058] In this embodiment, the overall thickness distribution of the light shielding portion 220 is not uniform, that is, the overall thickness is unevenly distributed. It is only necessary to ensure that the minimum thickness of the light shielding portion 220 is greater than 1 mm, which makes the production of the light shielding portion 220 more convenient. Of course, the light shielding portion 220 can also be of uniform thickness.

[0059] Reference Figure 2 As shown, in some specific embodiments of the present invention, the lampshade 200 further includes a sealing portion, which is disposed between the light-transmitting portion 210 and the light-shielding portion 220 .

[0060] It is worth noting that the sealing portion separates the light-transmitting portion 210 and the light-shielding portion 220 to avoid problems such as material cross-contamination and burrs during two-color injection molding. This improves the production quality of the light-transmitting portion 210 and the light-shielding portion 220. In this embodiment, along the width direction of the lampshade 200, that is, the Z-axis direction of the vehicle, the width of the sealing portion is W. The vehicle decorative lamp structure satisfies: W≈0.5mm. The width of the sealing portion is approximately 0.5mm to separate the light-transmitting portion 210 and the light-shielding portion 220, avoid injection molding defects, and improve the injection molding quality of the lampshade 200.

[0061] Reference Figure 2 As shown, in some specific embodiments of the present invention, the thickness of the light-transmitting portion 210 protruding from the light-shielding portion 220 is H2, and H2 is ≥ 2 mm.

[0062] It is worth noting that the light-transmitting portion 210 is more aesthetically pleasing after protruding from the light-shielding portion 220, and the overall shape of the lampshade 200 is aesthetically pleasing, and the lighting effect is more aesthetically pleasing. In this embodiment, the light-transmitting portion 210 has an aesthetically pleasing shape when the thickness of the protruding portion is 2 mm. In this embodiment, the light-transmitting portion 210 is uniformly distributed, i.e., the thickness of the protruding portion of the light-transmitting portion 210 is uniform, substantially 2 mm, and the light-transmitting surface of the light-transmitting portion 210 is flat. Of course, the light-transmitting portion 210 can also be unevenly distributed, i.e., the thickness of the protruding portion of the light-transmitting portion 210 is inconsistent, and can vary according to a functional relationship, and the light-transmitting surface of the light-transmitting portion 210 can be a curved surface.

[0063] In this embodiment, the protruding portion of the light-transmitting portion 210 has a certain draft angle to facilitate separation of the light-transmitting portion 210 from the mold after injection molding. The draft angle of the light-transmitting portion 210 is d, and d ≥ 7°. It should be noted that the light-transmitting portion 210 has two sides along the width direction of the lampshade 200. The draft angle d on one side can be greater than or equal to 7°, and the draft angle on the other side can be selected according to actual needs, and can be less than 7° or greater than 7°. The draft angles on both sides can be the same or different.

[0064] Reference Figure 2 As shown, in some specific embodiments of the present invention, the lampshade 200 further includes a light-transmitting connecting portion 230 , which is connected to the light-transmitting portion 210 and is shielded by the light-shielding portion 220 .

[0065] In this embodiment, the light-transmitting connecting portion 230 is also made of a light-transmitting material, and the material of the light-transmitting connecting portion 230 is consistent with the material of the light-transmitting portion 210, wherein both the light-transmitting connecting portion 230 and the light-transmitting portion 210 are made of red light-transmitting material. Specifically, along the width direction of the lampshade 200, that is, the Z-axis direction of the vehicle, the lampshade 200 includes a plurality of light-transmitting portions 210 spaced apart in sequence, and two adjacent light-transmitting portions 210 are connected as a whole by the light-transmitting connecting portion 230, and the light-transmitting connecting portion 230 can transmit light along the width direction of the lampshade 200. The light-transmitting connecting portion 230 itself is blocked by the light-shielding portion 220, so that light cannot be emitted from the light-transmitting connecting portion 230. The light can move to the light-transmitting portion 210 and be emitted, thereby enhancing the brightness of the light-transmitting portion 210. The light-transmitting portion 210 and the light-transmitting connecting portion 230 are integrally formed, and both are red layers.

[0066] Reference Figure 2 As shown, in some specific embodiments of the present invention, the thickness of the light-transmitting connecting portion 230 is H3, and the vehicle decorative light structure satisfies: H3 ≥ 2 mm.

[0067] It is worth noting that the minimum thickness of the light-transmitting connecting portion 230 is greater than or equal to 2 mm, which ensures the connection strength of the light-transmitting connecting portion 230, allowing it to withstand a certain installation load, not easily break, and more reliable in use. In this embodiment, the thickness of the light-transmitting connecting portion 230 is the smallest at the connection point with the light-transmitting portion 210, and is exactly 2 mm, thereby improving the connection strength between the light-transmitting connecting portion 230 and the light-transmitting portion 210.

[0068] A second embodiment of the present invention provides a vehicle comprising the vehicle decorative light structure of the first embodiment, wherein the projection plane is parallel to the vehicle's XZ plane. It should be understood that by employing the vehicle decorative light structure of the first embodiment, the brightness of the decorative lights can be maintained consistently, avoiding the generation of shadows and dark spots, and enhancing the aesthetics of the decorative lights. The remaining structures of the vehicle are common knowledge to those skilled in the art and will not be further elaborated upon here.

[0069] The vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. It can also be a commercial vehicle, such as a van, bus, small truck, or large trailer. It can be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0070] For ease of understanding, a specific embodiment is used below for illustrative purposes. It should be noted that the following content does not constitute a specific limitation to the present invention.

[0071] The vehicle decorative light structure is a through-type taillight and includes multiple LED lights and a lampshade 200. The lampshade 200 is long and arranged along the Y-axis direction of the vehicle. The lampshade 200 includes three sub-covers, which are the left sub-cover, the middle sub-cover and the right sub-cover in sequence along the Y-axis direction of the vehicle. The left sub-cover is arranged on the left side of the vehicle frame, the middle sub-cover is arranged on the outer peripheral surface of the vehicle's trunk lid, and the right sub-cover is arranged on the right side of the vehicle frame. When the vehicle's trunk lid remains closed, the left sub-cover, the middle sub-cover and the right sub-cover form a through-type taillight that penetrates along the Y-axis direction of the vehicle.

[0072] Multiple LEDs are evenly spaced along the length of the lampshade 200. Each LED can be individually controlled to illuminate, creating a variety of lighting designs, such as a marquee or a flowing light. Specifically, a marquee design involves LEDs lighting up for a preset duration along the length of the lampshade 200 and then extinguishing after the preset duration. Furthermore, the evenly spaced LEDs along the length of the lampshade 200 ensure a uniform brightness distribution along the length of the lampshade 200.

[0073] The lampshade 200 is spaced apart from the LED lamp. The lampshade 200 includes a red layer and a black layer using a double-layer injection molding process. The black layer is arranged on the side of the red layer away from the LED lamp, which is also the side of the lampshade 200 exposed to the vehicle surface. The black layer blocks part of the red layer, and the black layer forms a shading portion 220. The unblocked portion of the red layer is the light-transmitting portion 210, and the blocked portion of the red layer is the light-transmitting connecting portion 230. The light-transmitting portion 210 is distributed in a long strip shape along the length direction of the lampshade 200, and the light-transmitting portion 210 protrudes from the side of the light-shielding portion 220 away from the LED lamp. The protruding portion of the light-transmitting portion 210 forms the lamp shape of a through-type taillight, making the through-type taillight more beautiful.

[0074] Among them, the LED lamp is arranged at the center position of the lampshade 200 along the width direction of the lampshade 200, the overall thickness of the light-transmitting part 210 is uniform, and the distance between the light-input surface and the light-output surface of the light-transmitting part 210 is 5 mm, that is, the minimum length of the first line segment 600 is 5 mm; the length of the first line segment 600 connecting a point in the luminous area 300 projected by the LED lamp and the end point of the light-outputting light segment 400 projected by the light-outputting surface is 5.04 mm, that is, the maximum length of the first line segment 600 is 5.04 mm, and calculation shows that L1 / L2=0.992, the length of the minimum first line segment 600 and the length of the maximum first line segment 600 are basically the same, the loss of light emitted by the LED lamp passing through the light-transmitting part 210 is basically the same, and the lighting uniformity of the light-transmitting part 210 is better and more beautiful.

[0075] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A vehicle decorative lamp structure, characterized in that: include: a light source having a light emitting portion for emitting light; a lampshade spaced apart from the light source, the lampshade comprising a light-transmitting portion and a light-shielding portion, the light-transmitting portion protruding from the light-shielding portion in a direction away from the light source, the light-transmitting portion having a light-incoming surface facing the light source and a light-emitting surface away from the light source; Among them, the surface perpendicular to the length direction of the lampshade is defined as the projection surface, the projection of the light-emitting part in the projection surface is the light-emitting area, the projection of the light-emitting surface in the projection surface is the light-emitting light segment, the projection of the light-incoming surface in the projection surface is the light-incoming light segment, and the set of lines connecting any point within the light-emitting area and any point on the light-emitting light segment and passing through the light-incoming light segment is the light path line set. The light path lines include a first line segment located between the light-emitting light segment and the light-incoming light segment. The minimum length of the first line segment is L1, and the maximum length of the first line segment is L2. In the light path line set, each of the first line segments satisfies: 0.75≤L1 / L2≤1.

2. The vehicle decorative lamp structure according to claim 1, characterized in that: In the optical path line set, each of the first line segments satisfies: 0.99≤L1 / L2≤1.

3. The vehicle decorative lamp structure according to claim 1, characterized in that: The light-incoming surface and the light-emitting surface are planes parallel to each other; Among them, in the optical path line set, the optical path line perpendicular to the outgoing light segment includes the first line segment with the smallest length, the outgoing light segment has a first endpoint, and the optical path line connected to the first endpoint includes the first line segment with the largest length.

4. The vehicle decorative lamp structure according to claim 3, characterized in that: The light source has an optical axis, and an optical axis formed by the optical axis and the projection surface is perpendicular to the outgoing light segment, and the foot of the perpendicular is the midpoint of the outgoing light segment.

5. The vehicle decorative lamp structure according to claim 1, characterized in that: The thickness of the light shielding portion is H1, and the vehicle decorative light structure satisfies: H1 ≥ 1 mm.

6. The vehicle decorative lamp structure according to claim 1, characterized in that: The lampshade further includes a sealing portion, which is arranged between the light-transmitting portion and the light-shielding portion.

7. The vehicle decorative lamp structure according to claim 1, characterized in that: The thickness of the light-transmitting portion protruding from the light-shielding portion is H2, and H2 is ≥ 2 mm.

8. The vehicle decorative lamp structure according to claim 1, characterized in that: The lampshade further includes a light-transmitting connecting portion, which is connected to the light-transmitting portion and is shielded by the light-shielding portion.

9. The vehicle decorative lamp structure according to claim 8, characterized in that: The thickness of the light-transmitting connecting portion is H3, and the vehicle decorative lamp structure satisfies: H3≥2mm.

10. A vehicle, characterized in that: include: The vehicle decorative lamp structure according to any one of claims 1 to 9, wherein the projection plane is parallel to the XZ plane of the vehicle.

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