Ornament assembly and vehicle window device

Abstract

The invention relates to an ornament assembly and a vehicle window device. The ornament assembly comprises a bearing piece, an ornament strip and a light-emitting module. The decorative strip is connected with the bearing piece, a containing space is formed between the decorative strip and the bearing piece, and the decorative strip is provided with a light-transmitting part. The light-emitting module is connected with the bearing piece, and the light-emitting module is arranged in the containing space. The light-emitting module comprises a first light source, a second light source and a light guide. The first light source and the second light source are arranged on the two opposite sides of the light guide in the length direction of the light guide correspondingly. The light-transmitting part extends in the length direction. When the first light source and the second light source are powered on and emit light, the light guide can transmit light in the length direction and finally guide the light into the light-transmitting part. The brightness of the first light source is L1, the brightness of the second light source is L2, and L1: L2 = 1.2-1.5. The color temperature difference value between the first light source and the second light source is delta CCT, and delta CCT is smaller than or equal to 300K. According to the ornament assembly in the embodiment, dynamic lighting effects such as dynamic flowing water and flickering effects can be achieved, and the light emitting brightness of the decoration strip is guaranteed.

Description

Technical Field

[0001] This application relates to the field of luminous trim technology, and in particular to trim assemblies and window devices. Background Technology

[0002] With the upgrading of the consumer market, many car manufacturers are adding lighting features to the exterior of their vehicles to enhance their appearance. Generally, current illuminated exterior trim on vehicles is achieved by installing corresponding light sources on the exterior panels to create the lighting effect.

[0003] In related technologies, many manufacturers have begun to produce luminous decorative strips capable of achieving dynamic flowing water effects. Currently, two common technical solutions are as follows: One is to set the light source on one side and control the brightness or color temperature of the light source to achieve the dynamic flowing water effect. However, this method of setting the light source on one side results in insufficient brightness on the side of the decorative strip away from the light source, leading to uneven brightness distribution and a less than ideal dynamic flowing water effect.

[0004] Secondly, by sequentially arranging multiple light sources along the length of the decorative strip, the brightness or color temperature of each light source can be independently controlled to achieve a brightness effect at each light source location, ultimately resulting in a gradual, dynamic flowing water effect. However, this method requires independent control of multiple light sources, which is difficult to control and has high setup costs. Furthermore, due to the limited space of the decorative strip, it is difficult to support the simultaneous wiring of multiple light sources. Summary of the Invention

[0005] Therefore, it is necessary to provide a trim assembly and a window device to address at least one of the problems in the prior art.

[0006] According to a first aspect of this application, a trim assembly is provided, comprising:

[0007] Load-bearing components;

[0008] The decorative strip is connected to the carrier, and a receiving space is formed between the decorative strip and the carrier. The decorative strip is provided with a light-transmitting part.

[0009] A light-emitting module is connected to the carrier and disposed within the receiving space. The light-emitting module includes a first light source, a second light source, and a light guide. The first and second light sources are respectively disposed on opposite sides of the light guide along its length. A light-transmitting portion extends along the length direction. When the first and second light sources are energized and emit light, the light guide transmits the light along the length direction and ultimately guides it to the light-transmitting portion.

[0010] The brightness of the first light source is L1, and the brightness of the second light source is L2, with L1:L2 = 1.2~1.5; the color temperature difference between the first light source and the second light source is ΔCCT, where ΔCCT ≤ 300K.

[0011] In one embodiment, the first light source is a fixed color temperature light source; the second light source is a variable color temperature light source; the light-emitting module further includes a power distribution component; the power distribution component is configured to transmit a driving signal to the fixed color temperature light source and the variable color temperature light source to change the brightness of the fixed color temperature light source and the variable color temperature light source, and to change the color temperature of the variable color temperature light source.

[0012] In one embodiment, the color temperature of the first light source is CCT1, where CCT1 = 4000K~8000K;

[0013] And / or, the color temperature of the second light source is CCT2, CCT2=1000K~8500K.

[0014] In one embodiment, the light guide includes a light guide layer and a coupling structure; the coupling structure is used to receive and couple light emitted by the first light source and the second light source; the light guide layer is coupled to the coupling structure; the light guide layer is capable of receiving light coupled through the coupling structure and guiding it to the light-emitting surface of the light guide layer.

[0015] In one embodiment, both the first light source and the second light source are LED light sources.

[0016] In one embodiment, both the first light source and the second light source are laser light sources; the coupling structure includes an optical fiber bundle; the first light source and the second light source are respectively coupled to both sides of the optical fiber bundle along the length direction; the sidewall of the optical fiber bundle is provided with a light-emitting portion; the light-emitting portion cooperates with the light-guiding layer for light guiding.

[0017] In one embodiment, the fiber bundle includes a composite fiber unit; the composite fiber unit includes two optical fibers; the two optical fibers are spirally wound together; wherein the two optical fibers are respectively coupled to the first light source and the second light source.

[0018] In one embodiment, the light guide layer has a grating structure for receiving light from the first light source and the second light source and guiding it to the light-emitting surface of the light guide layer; wherein the light-emitting surface of the light guide layer can guide light into the light-transmitting portion.

[0019] In one embodiment, the grating structure includes a first grating portion and a second grating portion arranged sequentially along the length direction; wherein the maximum value of the grating density of the first grating portion is greater than the maximum value of the grating density of the second grating portion.

[0020] In one embodiment, the first grating portion and the second grating portion are respectively connected to two opposite sides of the light guide layer along the length direction; the first grating portion and the second grating portion are connected in sequence; along the direction toward the middle position of the grating structure, the grating density of at least one of the first grating portion and the second grating portion is set to decrease in the length direction.

[0021] In one embodiment, the grating density of the first grating portion decreases in the length direction along the direction towards the center of the grating structure; wherein...

[0022] The maximum grating density in the first grating section is f1, where f1 = 160 L / mm ~ 200 L / mm;

[0023] And / or, the minimum value of the grating density in the first grating section is f2, f2=80L / mm~110L / mm.

[0024] In one embodiment, the grating density of the second grating portion decreases in the length direction along the direction towards the center of the grating structure; wherein...

[0025] The maximum grating density in the second grating section is f3, where f3 = 130 L / mm ~ 170 L / mm;

[0026] And / or, the minimum grating density in the second grating section is f4, f4 = 80L / mm ~ 110L / mm.

[0027] In one embodiment, the grating density variation rate of the first grating portion is K1, K1≤5 lines / mm; the grating density variation rate of the second grating portion is K2, K2≤5 lines / mm.

[0028] In one embodiment, the first grating portion and the first light source are disposed on the same side in the length direction, and the second grating portion and the second light source are disposed on the same side in the length direction.

[0029] In one embodiment, the number of light-emitting modules is set to at least two; at least two light guides are arranged sequentially along a first direction; the side edges of at least two light guides arranged along the first direction are provided with a connecting structure; two adjacent light guides are connected through the connecting structure.

[0030] In one embodiment, the connection structure includes an angled structure; the angled structure is disposed at the end of the light guide, and the angled structure has an angled coupling surface that is inclined to the light incident surface of the light guide; two adjacent angled coupling surfaces of two adjacent light guides are abutted against each other along the thickness direction of the light guide; wherein light can be transmitted between the two adjacent angled coupling surfaces.

[0031] In one embodiment, the connection structure includes a connection coating; two adjacent oblique coupling surfaces are bonded together by the connection coating.

[0032] In one embodiment, the bonding coating comprises a plurality of film layers stacked along the length direction; the refractive indices of the plurality of film layers decrease sequentially along the length direction.

[0033] According to a second aspect of this application, a vehicle window device is provided, including a glass body, a seal, and a trim assembly as described in the above embodiments; the seal is sealed at at least a portion of the edge of the glass body; the seal is connected between the trim assembly and the vehicle body sheet metal.

[0034] The aforementioned trim assembly and window device are arranged opposite to each other on both sides of the light guide along the length direction by means of a first light source and a second light source, so that both sides of the light guide have light sources to guide light. Unlike having a light source only on one side of the light guide, this embodiment helps to avoid the problem of uneven brightness caused by setting a light source on one side, so that both sides of the light guide arranged opposite to each other along the length direction have sufficient brightness, thus improving the brightness uniformity of the light guide.

[0035] Furthermore, by controlling the first light source and the second light source, with the brightness ratio of the first light source to the second light source controlled between 1.2 and 1.5, and ensuring that the color temperature difference does not exceed 300K, and further controlling the brightness order of the first light source and the second light source, it is possible to make the light-transmitting part present dynamic light effects such as flowing water and flashing when the light guide directs the light to the light-transmitting part, thereby optimizing the appearance performance of the trim assembly. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of a vehicle window device shown in one embodiment.

[0037] Figure 2 for Figure 1 The structural cross-sectional view of section AA shown.

[0038] Figure 3 for Figure 1 The structural cross-sectional view of BB shown.

[0039] Figure 4This is a schematic diagram of the structure of the trim assembly shown in one embodiment.

[0040] Figure 5 This is a schematic diagram of the coupling structure in the trim assembly shown in one embodiment.

[0041] Figure 6 This is a schematic diagram of the cooperative structure of multiple light guides in a decorative assembly shown in one embodiment.

[0042] Figure 7 This is a schematic diagram of the installation structure of the trim strip and the carrier in a trim assembly shown in one embodiment.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100. Trim assembly; 110. Carrier component; 111. Reception space; 120. Trim strip; 121. Light-transmitting part; 130. Light-emitting module; 131. First light source; 132. Second light source; 133. Light guide; 1331. Light guide layer; 1331a. Light emitting surface; 1331b. Light incident surface; 1332. Coupling structure; 1332a. Fiber optic bundle; 1333. Connection structure; 1333a. Angled structure; 1333b. Angled coupling surface; 134. Power distribution component; 140. Reflective layer; 150. Light homogenizer; 151. Light homogenizer film; 152. Cover; 160. Adhesive; 170. Wiring harness; 180. Mounting structure; 200. Glass body; 300. Sealing component; 400. Body sheet metal; 500. Control component; X, length direction; Z, thickness direction. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] See Figures 1 to 3 As shown, a vehicle window device is provided according to this application, including a trim assembly 100, a glass body 200, and a seal 300. The seal 300 is sealed at least a portion of the edge of the glass body 200. The seal 300 is connected between the trim assembly 100 and the vehicle body sheet 400.

[0047] Specifically, such as Figures 2 to 4 As shown, the trim assembly 100 includes a carrier 110, a trim strip 120, and a light-emitting module 130.

[0048] The trim strip 120 is connected to the support member 110, and a receiving space 111 is formed between the trim strip 120 and the support member 110. The trim strip 120 is provided with a light-transmitting part 121.

[0049] The light-emitting module 130 is connected to the carrier 110 and is disposed within the receiving space 111. The light-emitting module 130 includes a first light source 131, a second light source 132, and a light guide 133. The first light source 131 and the second light source 132 are respectively disposed on opposite sides of the light guide 133 along its own length direction X. The light-transmitting portion 121 extends along the length direction X. When the first light source 131 and the second light source 132 are energized and emit light, the light guide 133 can transmit the light along the length direction X and finally guide it into the light-transmitting portion 121.

[0050] The brightness of the first light source 131 is L1, and the brightness of the second light source 132 is L2, with L1:L2 = 1.2~1.5; the color temperature difference between the first light source 131 and the second light source 132 is ΔCCT, and ΔCCT ≤ 300K.

[0051] It is understood that by having the first light source 131 and the second light source 132 arranged opposite to each other on both sides of the light guide 133 along the length direction X, both sides of the light guide 133 have light sources to guide light. This is different from having a light source only on one side of the light guide 133. In this embodiment, it is beneficial to avoid the problem of uneven brightness caused by setting a light source on one side, so that both sides of the light guide 133 arranged opposite to each other along the length direction X have sufficient brightness, thereby improving the brightness uniformity of the light guide 133.

[0052] Furthermore, by controlling the first light source 131 and the second light source 132, and controlling the brightness ratio of the first light source 131 and the second light source 132 to be between 1.2 and 1.5, and ensuring that the color temperature difference does not exceed 300K, and further controlling the brightness order of the first light source 131 and the second light source 132, when the light guide 133 guides the light to the light-transmitting part 121, the light-transmitting part 121 can present dynamic flowing water, flashing and other dynamic light effects, thus optimizing the appearance performance of the decorative part assembly 100.

[0053] The trim strip 120 can be either an exterior trim strip or an interior trim strip, depending on the installation location and design requirements. In one example, trim strip 120 is a water-cutting trim strip, which can be installed on the body sheet metal 400.

[0054] In other examples, the length direction X is set in the same direction as the vehicle's direction of travel.

[0055] In one embodiment, L1:L2 = 1.3~1.4. In another embodiment, L1:L2 can be set to any value such as 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, or 1.45. Thus, when the first light source 131 and the second light source 132 emit light with this brightness ratio, the light superposition inside the light guide 133 can be more uniform when the first light source 131 and the second light source 132 emit light in different brightness sequences, effectively reducing the generation of light and dark boundaries, thereby improving the visual continuity of the light-transmitting part 121, making the brightness transition more uniform, and thus optimizing the gradual flow of light along the length direction X of the trim strip 120.

[0056] In another embodiment, ΔCCT ≤ 250K, further improving the color temperature consistency between the two light sources. In other embodiments, ΔCCT ≤ 200K. Thus, when the first light source 131 and the second light source 132 emit light with this color temperature difference, the further reduction of the color temperature difference ensures that there is no significant color shift during the transition between the first light source 131 and the second light source 132, enhancing the optical quality of the dynamic flowing water effect and making the flowing water more realistic.

[0057] It should be noted that the first light source 131 and the second light source 132 can be fixed color temperature light sources or adjustable color temperature light sources, etc.

[0058] In one embodiment, such as Figure 2 as well as Figure 4 As shown, the first light source 131 is a fixed color temperature light source. The second light source 132 is a variable color temperature light source. The light-emitting module 130 also includes a power distribution component 134. The power distribution component 134 is configured to transmit drive signals to the fixed color temperature light source and the variable color temperature light source to change the brightness of the fixed color temperature light source and the variable color temperature light source, and to change the color temperature of the variable color temperature light source.

[0059] Thus, a fixed color temperature light source can provide a basic amount of light, which helps ensure the stability of light output from the light guide 133. A variable color temperature light source, on the other hand, can achieve dynamic water flow effects and various ambient colors. That is, by adjusting the color temperature of the variable color temperature light source and the fixed color temperature light source, it is beneficial to achieve a dynamic water flow effect while also enriching the color effects of the dynamic water flow through gradual changes in color temperature, making the water flow effect more realistic. For example, by combining the brightness and color temperature dynamic control of the first light source 131 and the second light source 132, the light-transmitting part 121 can present a flowing light and shadow effect from bright to dark or from warm to cool along its length direction X.

[0060] Specifically, in one example scenario, the vehicle's control component 500 or an external device such as a mobile phone is communicatively connected to the power distribution component 134. When the control component 500 or the external device sends a drive signal, the power distribution component 134 can receive the drive signal and send the drive signal to the first light source 131 and the second light source 132, so that the brightness of the fixed color temperature light source and the variable color temperature light source is adjustable, and the color temperature of the variable color temperature light source is adjustable. The first light source 131 and the second light source 132 can be controlled and adjusted through the power distribution component 134.

[0061] In one embodiment, the color temperature of the first light source 131 is CCT1, where CCT1 = 4000K to 8000K. That is, when the first light source 131 is a fixed color temperature light source, the color temperature of the first light source 131 can be selected from any value between 4000K and 8000K. In this way, it can be ensured that the first light source 131 presents light with a mid-warm tone, which is compatible with the color of flowing water under natural light, making the dynamic flowing water light effect more realistic.

[0062] In one example scenario, when the color temperature of the second light source 132 is dynamically adjusted from high to low, or when the color temperature of the second light source 132 is lower than that of the first light source 131, the second light source 132 and the first light source 131 work together to form a visual transition from warm to cool or cool tones on the light guide 133 along the direction from the first light source 131 to the second light source 132, thereby enhancing the sense of flow.

[0063] In another example scenario, when the color temperature of the second light source 132 is dynamically adjusted from low to high, or when the color temperature of the second light source 132 is higher than that of the first light source 131, after the second light source 132 and the first light source 131 work together, a visual transition from warm to cool or cool tones can be formed on the light guide 133 along the direction from the second light source 132 to the first light source 131, enhancing the sense of flow.

[0064] In one example, the color temperature of the first light source 131 is CCT1, where CCT1 = 4000K~8000K. In another example, CCT1 can be set to any value such as 4500K, 5000K, 5500K, 6000K, 6500K, 7000K, or 7500K. Thus, the color temperature of the first light source 131 within this range allows it to provide a suitable warm yellow light source, better matching the dynamic flowing water lighting effect, and the color temperature is not too high. This reduces the difficulty of blending the light from the first light source 131 with the light from the second light source 132, thereby reducing the light guide 133's luminous inhomogeneity and resulting in a better dynamic flowing water lighting effect.

[0065] In another embodiment, the color temperature of the second light source 132 is CCT2, where CCT2 = 1000K~8500K. This wide range of color temperature adjustment allows the second light source 132 to cover the spectrum from warm yellow to cool white, facilitating the realization of variations in the flowing water effect at different color temperatures. This simulates the changes in light and shadow on flowing water during different periods of natural lighting, enriching the dynamic flowing water effect adjustment scenarios. Simultaneously, the cooperation between the second light source 132 and the first light source 131 ensures a uniform blend of warm and cool light in the central region of the light guide 133, without obvious boundaries, further reproducing the actual flowing water effect and contributing to a more realistic dynamic flowing water lighting effect.

[0066] In one example, the color temperature of the second light source 132 is CCT2, where CCT2 = 3000K~6500K. In other examples, CCT2 can be set to color temperature values ​​such as 3000K, 4000K, 5000K, 6000K, or 7000K. Thus, when the color temperature of the second light source 132 within this range is combined with the first light source 131, the color temperature difference between the two light sources is not too large. This reduces the difficulty of blending the light from the first light source 131 and the second light source 132, thereby reducing the light-emitting non-uniformity of the light guide 133 and resulting in a better dynamic flowing water light-emitting effect.

[0067] It should be noted that the first and second light sources can be LED light sources, laser light sources, etc.

[0068] In one embodiment, both the first light source 131 and the second light source 132 are LED light sources. Since the electro-optical conversion efficiency of LEDs is much higher than that of traditional light sources, LED light sources can achieve higher brightness under the same input power, which helps reduce power consumption. Furthermore, LEDs have a faster brightness-darkness response speed, which helps improve the switching efficiency of dynamic flowing light effects.

[0069] In one example, the first light source 131 can be a 2835 packaged LED. This allows the first light source 131 to provide stable, bright light.

[0070] In another example, the second light source 132 can be a COB integrated LED with an adjustable color temperature range of 3000K~6500K. This allows the second light source 132 to provide adjustable color and uniform, soft light, which is beneficial for achieving dynamic water effects and rich ambient colors.

[0071] In one example, the operating power of both the first light source 131 and the second light source 132 is 1.2W. This enables dynamic flowing water lighting effects with low energy consumption, resulting in greater energy savings.

[0072] In any embodiment of the power distribution component 134 described above, in one implementation, the power distribution component 134 may be a conductive wiring layer connected to the carrier 110 to distribute power and transmit drive signals to the first light source 131 and the second light source 132. Thus, by connecting the conductive wiring layer to the carrier 110, the installation gap between the conductive wiring layer and the carrier 110 can be reduced, thereby reducing the thickness occupied in the receiving space 111, making it easier to adapt to the vehicle's installation space.

[0073] In conjunction with any of the above embodiments of the optical guide 133, such as Figure 4 As shown, the light guide 133 includes a light guide layer 1331 and a coupling structure 1332. The coupling structure 1332 is used to receive and couple light emitted from the first light source 131 and the second light source 132. The light guide layer 1331 is coupled to the coupling structure 1332. The light guide layer 1331 can receive the light coupled through the coupling structure 1332 and guide it to the light emitting surface 1331a of the light guide layer 1331.

[0074] It is understandable that by setting a coupled coupling structure 1332 and a light guide layer 1331, the coupling structure 1332 receives and homogenizes the light emitted from the light source. The coupling structure 1332 can homogenize the light and disperse its directionality through internal microstructures or scattering particles, allowing the light to mix and form a uniform light field, which is then guided out from the light guide layer 1331. In this way, defects such as speckle in the light source can be further eliminated, and the brightness uniformity of the light emitted from the light-transmitting part 121 can be achieved, thus realizing uniform illumination of the entire light-transmitting part 121.

[0075] It should be noted that the coupling structure 1332 can be any one or more combinations of microstructure coupling structure, volume scattering coupling structure, and fiber bundle coupling structure. Furthermore, the optical microstructure in the light guide layer 1331 can be any one of dot structure, grating structure, or microlens array.

[0076] The coupling between the coupling structure 1332 and the light guide layer 1331 refers to the process and behavior of injecting light energy from the coupling structure 1332 into the light guide layer 1331.

[0077] Optionally, in one example, the coupling structure 1332 is optically coupled to the light guide layer 1331. Specifically, the optical coupling between the coupling structure 1332 and the light guide layer 1331 means that the coupling structure 1332 and the light guide layer 1331 are seamlessly connected through physical connection or through an optical medium, ensuring efficient light transmission and minimal reflection loss at the interface. This coupling method can effectively improve light energy utilization and further enhance the brightness uniformity of the light-emitting surface 1331a.

[0078] Furthermore, in yet another embodiment, combined with Figure 4 as well as Figure 5 As shown, both the first light source 131 and the second light source 132 are laser light sources. The coupling structure 1332 includes an optical fiber bundle 1332a. The first light source 131 and the second light source 132 are respectively coupled to both sides of the optical fiber bundle 1332a along its length direction X. The sidewall of the optical fiber bundle 1332a has a light-emitting section. The light-emitting section cooperates with the light guide layer 1331 for light guiding.

[0079] It is understandable that when the first light source 131 and the second light source 132 are simultaneously powered and pass through the light guide layer 1331, a dynamic flowing light effect with basic brightness on the light guide layer 1331 can be achieved. Furthermore, by coupling light into the fiber bundle 1332a from both sides through the first light source 131 and the second light source 132, supplementary light sources can be obtained from the edges of the fiber bundle 1332a, resulting in a uniform brightness distribution throughout the fiber bundle 1332a. This, in turn, provides uniform light to the light guide layer 1331, achieving a balance between supplementary lighting and light intensity, which is beneficial for enhancing the dynamic flowing light effect.

[0080] Furthermore, both the first light source 131 and the second light source 132 are laser light sources. Thus, due to the high brightness of the laser light source, after being fused onto the light guide layer 1331, the light guide layer 1331 can achieve high brightness, providing good visual recognition even in strong light environments, solving the visibility problem of traditional LED solutions under sunlight. In addition, based on the extremely narrow spectral linewidth of lasers, it is possible to achieve high color purity and a wide color gamut light output, enriching the visual effect of dynamic flowing water light effects.

[0081] In one installation scenario, the first light source 131 and the second light source 132 are electrically connected to the vehicle's control component 500 via a power distribution component 134, such as a wiring harness.

[0082] The aforementioned fiber bundle 1332a may include one or more optical fibers.

[0083] In one embodiment, such as Figure 5 As shown, the fiber bundle 1332a includes a composite fiber unit. The composite fiber unit includes two optical fibers. The two optical fibers are spirally wound together. The two optical fibers are coupled to the first light source 131 and the second light source 132, respectively.

[0084] Understandably, the spiral winding of the two optical fibers causes them to continuously exchange positions in space. The laser beams output from each fiber constantly cross, overlap, and mix during transmission, breaking down and destroying the coherence of the laser beams. This results in multiple incoherent or partially coherent light spots superimposed on each other, achieving a spatial averaging effect. Consequently, the speckle contrast of the laser output is reduced, allowing for a more uniform light field output on the light guide layer 1331. This is beneficial for improving the brightness uniformity of the dynamic flowing water light effect.

[0085] Furthermore, the two optical fibers are coupled to the first light source 131 and the second light source 132 respectively, allowing the light from the first light source 131 and the second light source 132 to be transmitted independently on the two optical fibers. This avoids transmission interference between the two types of light on the same optical fiber, ensuring the light transmission effect. For example, when the two optical fibers transmit light of different colors or brightnesses, and are spirally intertwined, it helps to achieve sufficient superposition of color and brightness in the output light, ensuring the light output effect and thus improving the brightness and color uniformity of the dynamic flowing water light effect.

[0086] Furthermore, optionally, the two fiber bundles 1332a are coaxially spirally wound around the same axis. This coaxial spiral winding helps to improve the uniformity of the incoherent superimposed beams, thereby reducing the speckle contrast of the output light and thus improving the light output uniformity of the light guide layer 1331.

[0087] Furthermore, in other embodiments, the included angle between two adjacent optical fibers is α, where α = 10°~35°. It is understandable that when the angle between the two optical fibers is too small (e.g., α < 10°), the fibers are nearly parallel, and their interleaving and crossing effects are weak, resulting in insufficient light interaction, inadequate mixing, poor uniformity of the output light field, and difficulty in effectively eliminating chromatic aberration and brightness unevenness. Conversely, when the angle between the two optical fibers is too large, the gap between the fibers increases, easily increasing light energy leakage loss and potentially introducing optical noise.

[0088] When α = 10°~35°, within this range, the two optical fibers maintain a certain angle and the angle between the optical fibers is not too large, so that a highly uniform light field can be obtained on the light guide layer 1331.

[0089] In one example, α = 15°~30°. In another example, α can be set to any value such as 15°, 20°, 25°, or 30°. In this range, it is beneficial to increase the degree of dispersion of the correlation of the laser beam and the degree of mixing between the laser beams, and to ensure that the gap between the two optical fibers is not too large, thereby reducing laser loss and avoiding the introduction of optical noise.

[0090] It should be noted that the number of the first light source 131 and the second light source can be, but is not limited to, one, two, or even three.

[0091] In one embodiment, the number of first light sources 131 is set to two. In another embodiment, the number of second light sources is set to two.

[0092] In one example use case, when the ambient light is very strong (such as during the day) or when it is necessary to highlight the dynamic flowing water light effect, the two first light sources 131 and / or the two second light sources 132 can be powered simultaneously. Since the two first light sources 131 can inject light energy from one side of the light guide layer 1331 and / or the two second light sources 132 can inject light energy from the other side of the light guide layer 1331, the brightness of the grating structure is enhanced, which strengthens the contrast between the light output by the light-transmitting part 121 and the ambient light. This overcomes the influence of excessively strong ambient light on the light effect of the light-transmitting part 121 and enhances the effect of dynamic flowing water.

[0093] In another example application scenario, when the ambient light is very weak (such as at night) or when it is necessary to weaken the dynamic flowing water light effect, a first light source 131 and a second light source 132 can be powered, while the other first light sources 131 and second light sources 132 are powered at low power or turned off. This reduces the light energy injected from both sides of the grating structure, thereby reducing the brightness on the grating structure. As a result, the light-transmitting part 121 can output the dynamic flowing water effect while being more energy-efficient.

[0094] In any embodiment of the light guide layer 1331 described above, the light guide layer 1331 has a grating structure. The grating structure is used to receive light from the first light source 131 and the second light source 132 and guide it to the light emitting surface 1331a of the light guide layer 1331. The light emitting surface 1331a of the light guide layer 1331 can guide light into the light-transmitting portion 121.

[0095] It is understandable that the grating structure in the light guide layer 1331 can guide the light emitted by the first light source 131 and the second light source 132 to the light-emitting surface 1331a and finally into the light-transmitting part 121, which helps to reduce the loss of light during transmission, improve the light efficiency utilization, and ensure the brightness of the light-emitting surface 1331a on the light guide layer 1331.

[0096] Thus, the arrangement of the grating structure helps to improve the light output uniformity of the light guide layer 1331. The intensity of the output light can be adjusted by the grating density of the grating structure, and it also helps to concentrate and guide the light to the light-transmitting part 121, thereby making the output light softer.

[0097] In some embodiments, the grating structure includes a first grating portion and a second grating portion arranged sequentially along the length direction X. The maximum value of the grating density of the first grating portion is greater than the maximum value of the grating density of the second grating portion.

[0098] It is understandable that the light transmission of the first light source 131 and the second light source 132 on the grating structure is such that the light transmission amount is higher at the two edges of the grating structure and lower at the middle. Thus, the maximum value of the grating density of the first grating section is greater than that of the second grating section, resulting in a certain difference in grating density between the two sections. This allows the higher grating density in the first grating section to reduce the amount of light transmitted, and the lower grating density in the second grating section to increase the amount of light transmitted. This overcomes the problem of inconsistent light transmission on the grating structure, making the brightness of the grating structure as similar or even consistent as possible. This improves the light uniformity of the light guide layer 1331, thereby enhancing the visual comfort of the dynamic flowing water light effect.

[0099] Furthermore, in one embodiment, the first grating portion and the second grating portion are respectively connected to two opposite sides of the light guide layer 1331 along the length direction X.

[0100] In one example, the first grating section and the first light source 131 are arranged on the same side in the length direction X, and the second grating section and the second light source 132 are arranged on the same side in the length direction X. In a certain application scenario, combined with the above embodiment where the first light source 131 is a fixed color temperature light source and the second light source 132 is a variable color temperature light source, in this embodiment, the maximum value of the grating density of the first grating section is greater than the maximum value of the grating density of the second grating section.

[0101] It is understandable that the first light source 131 is used to provide a brighter and more stable brightness. At this time, the maximum value of the grating density of the first grating section is relatively large, which allows the first grating section to reduce the amount of light emitted in a part of the first grating section when it cooperates with the first light source 131 to output light, thereby avoiding overexposure in some parts of the first grating section.

[0102] Meanwhile, the second light source 132 is used to provide an adjustable color temperature fiber bundle 1332a. In some adjustable scenarios, the brightness of the second light source 132 may be less than that of the first light source 131. At this time, the maximum value of the grating density of the first grating section is greater than the maximum value of the grating density of the second grating section. The smaller second grating section allows more light to be transmitted from the second grating section, thereby avoiding dark areas in the second grating section and improving the light output uniformity of the second grating section.

[0103] Of course, the first grating part can also be arranged on the same side as the second light source 132 in the length direction X, and the second grating part can be arranged on the same side as the first light source 131 in the length direction X.

[0104] Optionally, in one embodiment, the first grating portion and the second grating portion are connected sequentially. Along the direction toward the center of the grating structure, the grating density of at least one of the first grating portion and the second grating portion is arranged to decrease in the length direction X.

[0105] Thus, as light propagates in the light guide layer 1331, the scattering intensity of the light gradually decreases as the grating density decreases, thereby achieving a continuous and uniform distribution of light energy. This effectively suppresses strong reflection and glare from the light guide layer 1331 at certain emission angles, improves the softness and brightness uniformity of the light-emitting surface 1331a, reduces local over-brightness or dark spots, and makes the dynamic flowing water light effect smoother.

[0106] In one embodiment, the grating density of the first grating portion decreases in the direction toward the center of the grating structure.

[0107] Furthermore, in one example, the maximum grating density in the first grating section is f1, where f1 = 160 L / mm to 200 L / mm. That is, the grating density in the first grating section will not exceed the level of f1. Thus, within this density range, the first grating section can avoid localized light intensity concentration, thereby preventing near-field exposure on one side of the light guide layer 1331 and further optimizing the uniformity of the light field within the light guide layer 1331. Furthermore, the maximum grating density of the first grating section being within the range of 160 L / mm to 200 L / mm helps to improve the diffraction efficiency of one side of the light guide layer 1331 for short-wavelength light components, weakening the dispersion effect, thereby improving the color consistency of the emitted light and making the dynamic flowing water effect more natural and soft.

[0108] For example, f1 is set to 170L / mm to 190L / mm. Of course, in other examples, f1 can be set to any value such as 170L / mm, 175L / mm, 180L / mm, or 185L / mm. This further compresses the grating density range on one side of the first grating section, which helps to further avoid excessive local light intensity, thereby preventing exposure on one side of the light guide layer 1331, and ensuring that the grating density on one side of the first grating section is not too high, thus avoiding affecting the light intensity and guaranteeing the output brightness.

[0109] In another example, the minimum grating density in the first grating section is f2, where f2 = 80L / mm ~ 110L / mm.

[0110] It is understandable that the first grating section reaches the minimum grating density of the first grating section on the side near the middle of the light guide layer 1331, and the minimum value is between 80L / mm and 110L / mm. Within this range, the light output at the middle position of the light guide layer 1331 can be effectively increased, thereby increasing the brightness at the middle position of the light guide layer 1331 and compensating for the attenuation of light at the middle position of the light guide layer 1331 along the length direction X, thereby improving the light output uniformity of the light guide layer 1331.

[0111] For example, f2 is typically between 85 L / mm and 105 L / mm. Within this range, while ensuring sufficient light output at the center of the light guide layer 1331, it also helps to prevent excessive brightness differences along the length X of the first grating section, thus ensuring a natural and seamless transition of the dynamic flowing light effect from the beginning to the center. Of course, in other examples, f2 can also be specifically set to 85 L / mm, 90 L / mm, 95 L / mm, or 100 L / mm to adapt to the design requirements of different sized light guide layers 1331, maintaining stable side light intensity while ensuring center brightness and improving the smoothness of the dynamic flowing light effect.

[0112] In other examples, the grating density variation rate of the first grating section is K1, where K1 ≤ 5 lines / mm. It is understandable that the first grating section exhibits a gradient decrease with a variation rate less than 5 lines / mm, ensuring a smooth transition of grating density along the length direction X, and avoiding imbalance in light intensity distribution due to excessive grating density variation. Thus, at this variation rate, light scattering within the light guide layer 1331 is more continuous, effectively mitigating the photon accumulation effect and further improving the uniformity and smoothness of the light-emitting surface 1331a.

[0113] In another embodiment, the grating density of the second grating portion is set to decrease in the length direction X along the direction toward the center of the grating structure.

[0114] In addition, in one example, the maximum value of the grating density in the second grating section is f3, f3 = 130L / mm ~ 170L / mm.

[0115] That is, the grating density of the second grating section will not exceed f3. Within this density range, the second grating section can avoid localized light intensity concentration, thereby preventing near-field exposure on one side of the light guide layer 1331 and avoiding edge dark areas on that side, further optimizing the uniformity of the light field within the light guide layer 1331. Furthermore, the maximum grating density of the second grating section is within the range of 130L / mm to 170L / mm, which helps to improve the diffraction efficiency of one side of the light guide layer 1331 for short-wavelength light components, weakening the dispersion effect, thereby improving the color consistency of the emitted light and making the dynamic flowing water effect more natural and soft.

[0116] For example, f3 is set to 140L / mm to 160L / mm. Of course, in other examples, f3 can be set to any value such as 140L / mm, 145L / mm, 150L / mm, 155L / mm, or 160L / mm. This further compresses the grating density range on one side of the second grating section, which helps to further avoid excessive local light intensity, thereby preventing exposure phenomena on one side of the light guide layer 1331. It also prevents the grating density on one side of the second grating section from becoming too high, ensuring sufficient brightness without dark areas and guaranteeing the emitted light brightness.

[0117] In another example, the minimum grating density in the second grating section is f4, where f4 = 80L / mm ~ 110L / mm.

[0118] It is understandable that the second grating section reaches the minimum grating density of the second grating section on the side near the middle of the light guide layer 1331, and the minimum value is between 80L / mm and 110L / mm. Within this range, the light output at the middle position of the light guide layer 1331 can be effectively increased, thereby increasing the brightness at the middle position of the light guide layer 1331 and compensating for the attenuation of light at the middle position of the light guide layer 1331 along the length direction X, thereby improving the light output uniformity of the light guide layer 1331.

[0119] For example, f4 is typically between 85 L / mm and 105 L / mm. Similarly, within this range, while ensuring sufficient light output at the center of the light guide layer 1331, it also helps to prevent excessive brightness differences along the length X of the second grating section, thereby ensuring a natural and seamless transition of the dynamic flowing light effect from the beginning to the center. Of course, in other examples, f4 can also be specifically set to 85 L / mm, 90 L / mm, 95 L / mm, or 100 L / mm to adapt to the design requirements of different sized light guide layers 1331, maintaining stable side light intensity while ensuring center brightness, thus improving the smoothness of the dynamic flowing light effect.

[0120] In other examples, the grating density of the second grating section changes at a rate of K2, where K2 ≤ 5 lines / mm. Similarly, the second grating section exhibits a gradient decrease at a rate of less than 5 lines / mm, ensuring a smooth transition of grating density along the length direction X, and avoiding imbalance in light intensity distribution due to excessive changes in grating density. Thus, at this rate of change, light scattering within the light guide layer 1331 is more continuous, effectively mitigating the photon accumulation effect and further improving the uniformity and smoothness of the light-emitting surface 1331a.

[0121] It should be noted that the grating density is set to decrease from the edge to the center of the light guide layer 1331, and can be either a non-linear or a linear gradient distribution.

[0122] In one example, the rate of change of grating density along the length direction X of the grating structure is set to be non-linear. Specifically, the rate of change of grating density at the side of the first and second grating sections located away from the center of the light guide layer 1331 is greater than the rate of change of grating density at the side of the first and second grating sections located closer to the center of the light guide layer 1331. That is, the grating density changes faster near the edge region and gradually slows down towards the center region.

[0123] Thus, since the energy attenuation of light intensity on the light guide layer 1331 is not linearly distributed, and when the grating density change rate of the first grating section is also not linearly distributed, it is more in line with the energy attenuation law of light intensity propagating in the first grating section. This effectively suppresses edge bright spots and increases the light output in the central area, avoiding scattering distortion of light on the first grating section, ensuring a continuous and smooth distribution of the light field, and making the dynamic flowing water light effect present a visual effect of natural flow from the outside to the inside.

[0124] In other embodiments, the grating density of the first grating portion and the second grating portion is set to decrease in the direction toward the middle position of the grating structure.

[0125] That is, the grating density of the grating structure shows a decreasing to increasing trend along the length direction X. In this way, the grating structure with this changing trend can improve the light guiding uniformity of the grating structure, guide the light to transition uniformly from the edge to the center, and thus improve the continuity of the light field.

[0126] It should be noted that the number of light-emitting modules 130 can be one, two, three, etc., without much restriction.

[0127] In one embodiment, such as Figure 4 As shown, the first light source 131 and the second light source 132 are positioned opposite each other on both sides of the trim strip 120 along the length direction X. In this way, the trim strip 120 can present a dynamic flowing light effect, improving the aesthetic performance of the trim assembly 100.

[0128] In conjunction with any embodiment of the above-described light-emitting module 130, such as Figure 6 As shown, the number of light-emitting modules 130 is set to at least two. Each of the at least two light-emitting modules 130 is respectively provided with at least two first light sources 131, at least two second light sources 132, and at least two light guides 133. The at least two light guides 133 are arranged sequentially along a first direction. Each of the side edges of the at least two light guides 133 along the first direction is provided with a connecting structure 1333. Two adjacent light guides 133 are connected by the connecting structure 1333.

[0129] Thus, with at least two light guides 133 sequentially arranged along the first direction, dynamic flowing light effects can be displayed over a wider range, further enhancing the visual effect of the decorative assembly 100. Furthermore, since each light guide 133 corresponds to a first light source 131 and a second light source 132, combining multiple light guides 133 can achieve richer light emission modes. For example, adjacent light guides 133 can be lit sequentially to form a continuous flowing water effect; alternatively, some light guides 133 can be lit simultaneously, while others can be lit intermittently.

[0130] In this context, the side edge of the light guide 133 refers to the edge position that defines the boundary of the light guide 133, and this edge position is located on the sidewall of the light guide 133. Specifically, the first direction can be the same as the length direction X in the above embodiment; of course, the first direction can also be other directions such as the width direction. In one example, the side edges of at least two light guides 133 can refer to side edges set along the length direction X. In another example, the side edges of at least two light guides 133 set along the first direction refer to side edges of the light guide 133 set along the width direction or other directions.

[0131] It should be noted that the connection structure 1333 can be, but is not limited to, a snap-fit ​​structure, or other structures.

[0132] In some embodiments, see back Figure 6 The connecting structure 1333 includes an angled structure 1333a. The angled structure 1333a is disposed at the end of the light guide 133, and has an angled coupling surface 1333b that is inclined to the light incident surface 1331b of the light guide 133. Two adjacent angled coupling surfaces 1333b of two adjacent light guides 133 are arranged to abut against each other along the thickness direction Z of the light guide 133. Light can be transmitted between the two adjacent angled coupling surfaces 1333b.

[0133] Thus, when light enters the light guide 133, the tilt angle of the angled coupling surface 1333b effectively changes the propagation path of the light. Furthermore, the two adjacent angled coupling surfaces 1333b are positioned to abut against each other along the thickness direction Z of the light guide 133. When the light propagates along the thickness direction Z, it can couple with the angled coupling surface 1333b, ensuring that the light can be transmitted and cover the area between the two adjacent light guides 133. This reduces light loss during propagation along the thickness direction Z and avoids dark areas at the junction of the two adjacent light guides 133, ensuring a more natural and uniform transition of light between the two light guides 133, thereby guaranteeing the uniformity of light emission.

[0134] Optionally, in one embodiment, the angle between the oblique coupling surface 1333b and the incident light surface 1331b is β, where β = 40°~50°, or β = 140°~130°.

[0135] It is understandable that when β is between 40° and 50° or between 130° and 140°, the end of the light guide 133 does not need to be made too thin, thereby enabling sufficient coupling and transmission of light between the light guides 133, improving the transmission quality of light on the light guide 133, and ensuring the brightness of the edge of the light guide 133.

[0136] At the same time, this range will not cause the interaction gap between two adjacent light guides 133 in the thickness direction Z to be too large, thereby preventing the fiber bundle 1332a from being emitted directly from the thickness direction Z, effectively avoiding light scattering and loss, and enabling light to be transmitted between two adjacent light guides 133, thereby allowing the decorative assembly 100 to present a more uniform light effect when emitting light.

[0137] In one example, β can be set to any value such as 40°, 140°, 45°, 135°, 50°, or 130°. In another example, β = 45° or 135°.

[0138] Furthermore, in yet another embodiment, see back Figure 6 The optical guide 133 has oblique structures 1333a on both sides that are opposite each other along the length direction X. The two oblique structures 1333a that are opposite each other along the length direction X of the optical guide 133 are centrally symmetrical.

[0139] Thus, the two oblique structures 1333a arranged opposite each other along the length direction X of the light guide 133 are centrally symmetrical. On the one hand, due to the symmetry of the oblique structures 1333a on both sides, the reflection and refraction paths of light within the light guide 133 are more regular and symmetrical, reducing the deviation and loss of light during propagation, making the light propagation of the light guide 133 more uniform and stable along the length direction X. On the other hand, the centrally symmetrical oblique structures 1333a help reduce the difficulty of connecting multiple light guides 133. There is no need for structural differences between two adjacent light guides 133; simply connecting the complementary oblique structures 1333a is sufficient to achieve coupling and mutual support between two adjacent oblique coupling surfaces 1333b, improving processing efficiency and reducing costs.

[0140] In other embodiments, the surface roughness of the beveled coupling surface 1333b is Ra, 0. <Ra≤0.2μm。

[0141] Thus, when the surface roughness of the bevel coupling surface 1333b satisfies 0 < Ra ≤ 0.2 μm, the surface is smoother and flatter, the scattering of light on the bevel coupling surface 1333b is reduced, and the loss of light energy is decreased.

[0142] In one example, 0 < Ra ≤ 0.15 μm. In another example, Ra can be set to any value such as 0.05 μm, 0.1 μm, 0.15 μm or 0.2 μm. Thus, within this range, the surface roughness of the bevel coupling surface 1333b is lower, and then the surface smoothness of the bevel coupling surface 1333b is further improved, thereby reducing the loss of light energy.

[0143] In one of the embodiments, referring back Figure 6 , the connection structure 1333 includes a connection coating. Two adjacent bevel coupling surfaces 1333b are adhesively connected through the connection coating. Thus, the connection coating can ensure that two adjacent bevel coupling surfaces 1333b are firmly adhesively connected together. The adhesive connection method can not only ensure the tight connection between the optical guides 133, reduce the scattering and loss of light at the connection, and thereby improve the light propagation efficiency. Moreover, the connection coating also has a certain buffering effect, which can reduce the influence of external vibration and impact on the connection of the optical guides 133, and enhance the reliability and stability of the connection of the optical guides 133.

[0144] In one embodiment, the connection coating includes multiple film layers stacked along the length direction X; the refractive indices of the multiple film layers decrease sequentially along the length direction X.

[0145] It can be understood that in the traditional connection method, light is prone to reflection at the interface of different media, resulting in the loss of some light that cannot continue to propagate. By setting the film layers with sequentially decreasing refractive indices, the proportion of light reflected when passing through each layer of the film is reduced, thereby increasing the transmittance of light at the connection coating and further improving the light propagation efficiency between the sequentially arranged optical guides 133.

[0146] Thus, when light propagates in an optical guide 133 and reaches the connection coating, due to the sequential decrease of the refractive indices of the film layers, the light will refract and propagate according to a certain rule, enabling the light to more smoothly pass through the connection coating from one optical guide 133 and enter another optical guide 133.

[0147] Furthermore, the setting of the multiple film layers can also play a role in dispersing light. When light enters the connection coating, it will undergo multiple refractions and scatterings in different film layers, making the light more evenly distributed in the connection coating, achieving uniform transmission of light between two adjacent optical guides 133, avoiding the situation of too strong or too weak local light, and improving the luminous uniformity between multiple optical guides 133.

[0148] In one implementation scenario, the first light source 131 and the second light source 132 are respectively disposed on both sides of the light guide 133 along the length direction X. The first light source 131 is a fixed color temperature light source, and the second light source 132 is an adjustable color temperature light source. Multiple film layers are arranged in descending order along the direction from the first light source 131 to the second light source 132. Since the first light source 131 is mainly used to provide basic illumination, the descending order of the multiple film layers along the direction from the first light source 131 to the second light source 132 better conforms to the propagation path of high-energy light energy, thereby improving the uniformity of light and optimizing the light effect of dynamic flowing water.

[0149] Optionally, in one embodiment, among a plurality of films stacked along the length direction X, the film with the largest refractive index has a refractive index of n1, where n1 = 1.50~1.54.

[0150] Thus, within this range of refractive index, the propagation loss of light in the film with the highest refractive index can be further reduced, thereby reducing the propagation loss of light as it passes through other refractive index films in sequence, thus ensuring the light intensity.

[0151] In one example, n1 = 1.51~1.53. In another example, n1 is set to any value such as 1.51, 1.52, or 1.53. In this way, the propagation loss of light when passing through the film layer can be effectively reduced, thereby ensuring the intensity of the light.

[0152] In another embodiment, among the multiple layers stacked along the length direction X, the layer with the lowest refractive index has a refractive index of n2, where n2 = 1.47~1.51. Thus, within this refractive index range, the layer with the lowest refractive index can form a reasonable refractive index gradient with the layer with the highest refractive index and other layers, which helps light propagate more efficiently between the layers and reduces light reflection loss at the layer interfaces. Furthermore, this refractive index setting also helps to further optimize the light dispersion effect, making the light distribution within the connecting coating more uniform, and further improving the uniformity of light emission among multiple light guides.

[0153] In one example, n2 = 1.48~1.50. In another example, n2 is set to any value such as 1.48, 1.49, or 1.50. Specifically, when light enters a low-refractive-index film layer from a high-refractive-index film layer, because the refractive index difference is within a suitable range, the light can be refracted at a small angle into the next film layer, thereby ensuring that the light can propagate continuously and stably in the connecting coating.

[0154] Thus, combined with n1=1.50~1.54 in the above embodiments, the gradual change between film layers will not be too large, thereby ensuring the stability of light propagation, avoiding excessive light divergence caused by large differences, and thus helping to ensure the brightness of the light.

[0155] Optionally, in other embodiments, the connecting coating includes a first adhesive layer, a functional film layer, and a second adhesive layer. The first adhesive layer, the functional film layer, and the second adhesive layer are stacked sequentially along the length direction X. The functional film layer can be an elastic buffer layer, or any combination of one or more of the following: a light-transmitting film layer. Thus, bonding the two angled coupling surfaces 1333b using the first and second adhesive layers respectively improves the connection reliability between adjacent light guides 133.

[0156] In one example, the first adhesive layer can be an epoxy resin type. This type of adhesive layer provides strong bonding properties, which helps to further improve the connection reliability between two adjacent optical guides 133.

[0157] In another example, the functional film layer may include at least one of an acrylate film layer and a silicone film layer. Thus, the acrylate film layer has good light transmittance, which is beneficial for improving the light transmission effect between two adjacent light guides 133. The silicone film layer has good elasticity, as well as high and low temperature resistance, which can adapt to various working conditions and ensure the connection stability between two adjacent light guides 133.

[0158] In other examples, the second adhesive layer can be a UV-curable adhesive. This adhesive cures rapidly under UV light, improving installation efficiency. Furthermore, the cured UV adhesive possesses high strength and hardness, providing a stable connection between adjacent light guides 133 and further enhancing connection reliability. It also exhibits excellent chemical resistance, resisting the erosion of various chemicals and ensuring stable connections between adjacent light guides 133 under different chemical environments. In addition, the UV adhesive has excellent optical properties and high light transmittance, which helps reduce light loss during transmission, thereby improving the light transmission effect between adjacent light guides 133.

[0159] To improve the transmission quality of light within the containment space 111, in one embodiment, such as Figure 7 As shown, the trim assembly 100 also includes a reflective layer 140. The reflective layer 140 covers at least a portion of the surface of the carrier 110 facing the light-transmitting portion 121. The reflective layer 140 is used to reflect light to the light guide 133.

[0160] Thus, when light shines on the reflective layer 140, the light that might otherwise be scattered or escaped is reflected back into the light guide 133, allowing more light to be conducted within the light guide 133, enhancing the light-emitting effect of the light guide 133, and reducing light energy loss.

[0161] In another embodiment, such as Figure 7 As shown, the trim assembly 100 also includes a light-diffusing element 150. The light-diffusing element 150 is disposed on the side where the light-emitting surface 1331a of the light guide 133 is located.

[0162] Thus, by setting up the light homogenizer 150, it is possible to redistribute and adjust these uneven light rays. When light rays emerge from the light guide 133 and hit the light homogenizer 150, the light homogenizer 150 will perform multiple refraction, scattering and reflection operations on the light rays, breaking up the originally concentrated or dispersed light rays and distributing them evenly, so that the light rays finally emitted from the light homogenizer 150 exhibit a uniform brightness and effect on the entire light-emitting surface 1331a, avoiding obvious differences in brightness and darkness.

[0163] The light homogenizer 150 can be, but is not limited to, other optical elements such as frosted glass / diffuser, microlens array, etc.

[0164] In one example, see back Figure 4 as well as Figure 7 The light-diffusing element 150 includes a light-diffusing film 151. The light-diffusing film 151 can cover the light-emitting surface 1331a of the light guide 133. In this way, the light-diffusing film 151 can improve the softness of the light on the light-emitting surface 1331a, thereby making the dynamic water flow effect softer and more natural.

[0165] In another example, see back Figure 7 The light-diffusing component 150 includes a cover 152. The cover 152 is stacked with the first light source 131 and the second light source 132 along the thickness direction Z. In this way, by setting the cover 152, the light emitted by the first light source 131 and the second light source 132 can be evenly distributed, making the light softer, and thus making the dynamic water flow effect softer and more natural.

[0166] The trim strip 120 can be any trim strip, such as a water-cut trim strip or a corner window trim strip. In one example, the outer trim strip can be a water-cut trim strip.

[0167] The aforementioned trim strip 120 can be a plastic trim strip.

[0168] Thus, the plastic material makes the trim strip 120 lighter, which helps reduce the overall weight of the vehicle. At the same time, the plastic trim strip can be made available in a wide range of colors by adding color masterbatches, allowing for better matching and coordination with the vehicle's overall color scheme. Furthermore, the surface of the plastic trim strip can undergo special treatments, such as spraying and coating, to increase its gloss and wear resistance, ensuring a stable appearance.

[0169] In some embodiments, such as Figure 3 as well as Figure 7 As shown, the trim assembly 100 may also include adhesive 160. Adhesive 160 is bonded to both sides of the trim strip 120 along the length direction X and between the carrier member 110 to enclose the receiving space 111. Thus, the use of adhesive 160 helps to improve the sealing stability of the receiving space 111 and avoid external interference with the operation of the light-emitting module 130.

[0170] Optionally, in one embodiment, the wire harness 170 used for conducting electricity in the light-emitting module 130 can be glued to the inner wall of the receiving space 111 by adhesive 160 to realize the storage of the wire harness 170.

[0171] In other embodiments, such as Figure 3 as well as Figure 7 As shown, the trim assembly 100 may also include a mounting structure 180. The carrier 110 is mounted on both sides of the trim strip 120 along the length direction X via the mounting structure 180 to enclose the receiving space 111. Thus, the mounting structure 180 helps to improve the sealing stability of the receiving space 111 and avoids external interference with the operation of the light-emitting module 130.

[0172] The mounting structure 180 can be a snap-fit ​​structure, a riveting structure, or a screw-fit structure, etc.

[0173] In one embodiment, the mounting structure 180 includes a protrusion and a recess. One of the recess and the protrusion is disposed on the trim 120, and the other is disposed on the support member 110. The protrusion and the recess are riveted together.

[0174] The driving of the light-emitting module 130 in the above embodiments can exist in a variety of control scenarios.

[0175] In one embodiment, the light-emitting module 130 further includes a first chip and a second chip, both electrically connected to a power distribution component 134. The first chip is electrically connected to a first light source 131, and drives the first light source 131 after receiving a drive signal from the power distribution component 134. The second chip is electrically connected to a second light source 132, and drives the second light source 132 after receiving a drive signal from the power distribution component 134. This achieves independent control of the first light source 131 and the second light source 132, allowing the first light source 131 to function as a fixed color temperature light source. When the second light source 132 is a variable color temperature light source, the first light source 131 and the second light source 132 can be controlled according to different commands.

[0176] The driving signal can be a pulse signal or a digital signal, etc. It can integrate a pulse width modulation control module in the power distribution component 134 to control the brightness and color temperature of the light source, thereby further enhancing the dynamic visual experience.

[0177] In a control scenario, the appropriate control mode can be selected based on different lighting effect modes. In one example, assuming a dynamic flowing water lighting effect is to be achieved, the order and speed of color changes must be determined.

[0178] Through communication and interaction between the control component 500 and the first and second chips, the duty cycle of the output voltage of the first light source 131 and the second light source 132 is adjusted, i.e., PWM adjustment. PWM (Pulse Width Modulation) adjustment controls the average value of the output voltage by changing the duty cycle of the pulse signal. The higher the duty cycle, the higher the average voltage, and the brighter the light strip.

[0179] First, the control component 500 generates a corresponding PWM signal based on the order and speed of the color changes. For example, for a gradient effect, the control component 500 gradually changes the duty cycle of the PWM signal, causing the brightness of the light strip to change gradually.

[0180] Secondly, the power distribution unit 134 receives the PWM signal from the control component 500 and then transmits the PWM signal to the control pins of the first chip and the second chip.

[0181] Finally, the first chip and the second chip adjust the output voltage according to the duty cycle of the PWM signal, thereby controlling the brightness of the first light source 131 and the second light source 132. For example, when the duty cycle is 50%, the average voltage output by the circuits on the first chip and the second chip is half of the power supply voltage, and the brightness of the first light source 131 and the second light source 132 is half of the maximum brightness.

[0182] Simultaneously, the control component 500 controls the frequency of the PWM signal to be higher than the persistence frequency of human vision (approximately 60Hz). In this way, the human eye will perceive continuous changes in brightness as a smooth visual effect, thereby achieving the dynamic flowing light effect.

[0183] Furthermore, the frequency of the PWM signal is no less than 480Hz. This avoids flickering perceptible to the human eye, ensuring that scrolling stripes will not appear under any camera device, thus improving visual comfort and safety.

[0184] In other control scenarios, the control component 500 has a pre-stored or real-time calculated brightness compensation curve. The brightness compensation curve is related to the light guide path length and the PWM duty cycle. Specifically, for the light guide path section that is far from the light source, the output power of the light source is increased accordingly to compensate for the natural attenuation of light during long-distance transmission, thereby ensuring that the brightness of the entire water cut is highly uniform in appearance.

[0185] When the above-mentioned decorative assembly 100 has multiple light guides 133, the control component 500 can synchronously control the multiple light-emitting modules 130 corresponding to the multiple light guides 133, and synchronize the PWM signals of the multiple light-emitting modules 130 to ensure the consistency of visual effect.

[0186] To verify the effectiveness of the above-mentioned control scenario in which the brightness and color temperature of the first light source 131 and the second light source 132 are adjusted by the duty cycle.

[0187] In one test scenario, there are two test groups. Test group A uses traditional current control to control the first light source 131 and the second light source 132. Test group B uses PWM duty cycle adjustment to control the first light source 131 and the second light source 132 to achieve the same brightness as group A.

[0188] Both test groups conducted tests on the first light source 131 and the second light source 132 at an ambient temperature of 25℃, operating them continuously at 3.6W for two hours. The temperature changes of the first light source 131 and the second light source 132 before and after the test were recorded, as shown in the table below.

[0189] monitoring points Group A temperature rise Group B temperature rise industry standards Light source junction temperature 78℃ → 112℃ 82℃ → 93℃ ≤105℃ Surface contact temperature 52℃ → 67℃ 48℃ → 55℃ ≤60℃

[0190] It can be observed that after two hours of continuous operation, the junction temperature and surface contact temperature of the first light source 131 and the second light source 132 in Group B are both below industry standards and far lower than the temperature after hour A. This indicates that using PWM duty cycle to control the first light source 131 and the second light source 132 can make the temperature level of the light-emitting module 130 more stable, avoid overheating, and improve the light-emitting stability of the light-emitting module 130.

[0191] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A decorative component assembly, characterized in that, include: Load-bearing components; The decorative strip is connected to the carrier, and a receiving space is formed between the decorative strip and the carrier. The decorative strip is provided with a light-transmitting part. A light-emitting module is connected to the carrier and disposed within the receiving space. The light-emitting module includes a first light source, a second light source, and a light guide. The first and second light sources are respectively disposed on opposite sides of the light guide along its length. A light-transmitting portion extends along the length direction. When the first and second light sources are energized and emit light, the light guide transmits the light along the length direction and ultimately guides it to the light-transmitting portion. The brightness of the first light source is L1, and the brightness of the second light source is L2, with L1:L2 = 1.2~1.5; the color temperature difference between the first light source and the second light source is ΔCCT, where ΔCCT ≤ 300K.

2. The trim assembly according to claim 1, characterized in that, The first light source is a fixed color temperature light source; the second light source is a variable color temperature light source; the light-emitting module further includes a power distribution component; the power distribution component is configured to transmit a driving signal to the fixed color temperature light source and the variable color temperature light source to change the brightness of the fixed color temperature light source and the variable color temperature light source, and to change the color temperature of the variable color temperature light source.

3. The trim assembly according to claim 1, characterized in that, The color temperature of the first light source is CCT1, where CCT1 = 4000K~8000K; And / or, the color temperature of the second light source is CCT2, CCT2=1000K~8500K.

4. The trim assembly according to claim 1, characterized in that, The light guide includes a light guide layer and a coupling structure; the coupling structure is used to receive and couple the light emitted by the first light source and the second light source; the light guide layer is coupled to the coupling structure; the light guide layer can receive the light coupled through the coupling structure and guide it to the light-emitting surface of the light guide layer.

5. The trim assembly according to claims 1 to 4, characterized in that, Both the first light source and the second light source are LED light sources.

6. The trim assembly according to claim 4, characterized in that, Both the first light source and the second light source are laser light sources; the coupling structure includes an optical fiber bundle; the first light source and the second light source are respectively coupled to both sides of the optical fiber bundle along the length direction; the sidewall of the optical fiber bundle is provided with a light-emitting part; the light-emitting part cooperates with the light-guiding layer for light guiding.

7. The trim assembly according to claim 6, characterized in that, The fiber bundle includes a composite fiber unit; the composite fiber unit includes two optical fibers; the two optical fibers are spirally wound together; wherein the two optical fibers are respectively coupled to the first light source and the second light source.

8. The trim assembly according to claim 4, characterized in that, The light guide layer has a grating structure, which is used to receive light from the first light source and the second light source and guide it to the light-emitting surface of the light guide layer; wherein, the light-emitting surface of the light guide layer can guide light into the light-transmitting part.

9. The trim assembly according to claim 8, characterized in that, The grating structure includes a first grating portion and a second grating portion arranged sequentially along the length direction; wherein the maximum value of the grating density of the first grating portion is greater than the maximum value of the grating density of the second grating portion.

10. The trim assembly according to claim 9, characterized in that, The first grating portion and the second grating portion are respectively connected to two opposite sides of the light guide layer along the length direction; the first grating portion and the second grating portion are connected in sequence; along the direction toward the middle position of the grating structure, the grating density of at least one of the first grating portion and the second grating portion is set to decrease in the length direction.

11. The trim assembly according to claim 10, characterized in that, Along the direction toward the center of the grating structure, the grating density of the first grating portion is set to decrease in the length direction; wherein, The maximum grating density in the first grating section is f1, where f1 = 160 L / mm ~ 200 L / mm; And / or, the minimum value of the grating density in the first grating section is f2, f2=80L / mm~110L / mm.

12. The trim assembly according to claim 10, characterized in that, Along the direction toward the center of the grating structure, the grating density of the second grating portion is set to decrease in the length direction; wherein, The maximum grating density in the second grating section is f3, where f3 = 130 L / mm ~ 170 L / mm; And / or, the minimum grating density in the second grating section is f4, f4 = 80L / mm ~ 110L / mm.

13. The trim assembly according to claim 10, characterized in that, The grating density variation rate of the first grating section is K1, K1≤5 lines / mm; the grating density variation rate of the second grating section is K2, K2≤5 lines / mm.

14. The trim assembly according to claim 10, characterized in that, The first grating portion and the first light source are disposed on the same side in the length direction, and the second grating portion and the second light source are disposed on the same side in the length direction.

15. The trim assembly according to claim 1, characterized in that, The number of light-emitting modules is set to at least two; at least two light guides are arranged sequentially along a first direction; the side edges of at least two light guides arranged along the first direction are provided with a connecting structure; two adjacent light guides are connected through the connecting structure.

16. The trim assembly according to claim 15, characterized in that, The connection structure includes an angled structure; the angled structure is disposed at the end of the light guide, and the angled structure has an angled coupling surface that is inclined to the light incident surface of the light guide; two adjacent angled coupling surfaces of two adjacent light guides are abutted against each other along the thickness direction of the light guide; wherein light can be transmitted between the two adjacent angled coupling surfaces.

17. The trim assembly according to claim 16, characterized in that, The connection structure includes a connection coating; two adjacent oblique coupling surfaces are bonded together by the connection coating.

18. The trim assembly according to claim 17, characterized in that, The bonding coating comprises multiple film layers stacked along the length direction; the refractive indices of the multiple film layers decrease sequentially along the length direction.

19. A vehicle window device, characterized in that, The device includes a glass body, a seal, and a trim assembly as described in any one of claims 1 to 18; the seal is sealed at at least a portion of the edge of the glass body; the seal is connected between the trim assembly and the body sheet metal.

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