Signal lamp module and vehicle lamp

Abstract

The utility model discloses a signal lamp assembly and a vehicle lamp. The signal lamp module comprises a light source assembly, a light transmitting part and at least one light guide element, the light emitting end of a light guide strip, located on the upstream of a light path, of each light guide element is connected with the light inlet ends of a plurality of light guide strips located on the downstream of the light path, and the light inlet ends, not connected with other light guide strips, of the light guide elements are provided with light guide receiving faces. A plurality of light emitting ends which are not connected with other light guide strips are provided with light guide light emitting surfaces; at least part of light received by the light guide receiving surface and from the light emitting surface of the light source assembly is emitted from the light guide light emitting surface after entering the light guide element through at least one time of reflection, and is projected to the light transmitting part of the light transmitting part in the direction forming an included angle with the extending direction of the corresponding light guide strip; therefore, the light-guiding and light-emitting surface can play a role similar to light emitting of a light source, a plurality of light-transmitting parts are correspondingly lightened, the light-emitting mode is flexible, the number of devices with light-emitting surfaces of the light source assembly can be reduced, and the cost is saved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a signal light module and vehicle light. Background Technology

[0002] In the optical design of vehicle lights, multi-area illumination schemes for signal lights are quite common, enriching the lighting effect. Since multiple areas need to be illuminated, related technologies often increase the number of light source particles to illuminate multiple areas. This requires a large number of light source particles, and light is guided through a light guide structure, allowing light to exit from the structure's walls and project onto multiple areas to be illuminated. While this can save on the number of light sources, the light guide structure is bulky, inflexible in design, and prone to light loss. Therefore, in multi-area illumination schemes for signal lights, it is difficult to balance the number of light sources with the flexibility of the light guide. Utility Model Content

[0003] This application provides a signal light module and vehicle light that can solve the problem that multi-area lighting schemes for signal lights are difficult to balance in terms of the number of light sources and the flexibility of light guiding.

[0004] In a first aspect, embodiments of this application provide a traffic light module, the traffic light module comprising:

[0005] A light source assembly having at least one light-emitting surface;

[0006] The light-transmitting component has multiple light-transmitting sections; and

[0007] At least one light guide element, each light guide element comprising multiple light guide strips for conducting light, each light guide strip having a light inlet end and a light outlet end, the light outlet end of the light guide strip located upstream of the light path being connected to the light inlet ends of the multiple light guide strips located downstream of the light path, and the light inlet end not connected to other light guide strips having a light guide receiving surface facing the light emitting surface, and the multiple light outlet ends not connected to other light guide strips each having a light guide emitting surface facing the light-transmitting portion; wherein, at least a portion of the light from the light emitting surface received by the light guide receiving surface enters the interior of the light guide element, is reflected at least once, and is emitted from the light guide emitting surface, and is projected onto the light-transmitting portion in a direction at an angle to the extension direction of the corresponding light guide strip.

[0008] In some embodiments, the multiple light guide strips of each light guide element include a light guide body, and the light guide body has the light guide receiving surface;

[0009] Along the direction from the light-inlet end to the light-outlet end of the light guide strip, the light-inlet end of the light guide strip, excluding the light guide body, is bent away from the optical axis of the light-outlet end connected to it and located upstream of the optical path, and the bending radius is r1. The diameter of the cross-section of the light guide strip, excluding the light guide body, is M1, and r1 / M1≥4.

[0010] In some embodiments, the light guide body is in the shape of a straight strip; or,

[0011] The light-emitting end of the light guide body is bent relative to the light-incoming end.

[0012] In some embodiments, each of the light guide elements has multiple light guide strips including multiple light guide tails, and the light guide tails have the light guiding and emitting surfaces;

[0013] The light-emitting end of the light guide body is connected to the light-incoming end of the plurality of light guide tails; or...

[0014] Each of the light guide elements further includes at least two light guide branches on the multiple light guide strips. The light guide branches are disposed on the optical path between the light guide body and the light guide tail. The light-inlet end of each light guide branch is connected to the light-outlet end of one of the light guide strips located upstream of the optical path, and the light-outlet end of each light guide branch is connected to the light-inlet end of the multiple light guide strips located downstream of the optical path.

[0015] In some embodiments, M1 satisfies: 4mm ≤ M1 ≤ 8mm; and / or,

[0016] The diameter of the cross-section of the light guide body is M2, and M2 satisfies: 10mm≤M2≤15mm.

[0017] In some embodiments, the light-guiding surface is used to homogenize the light; and / or,

[0018] The light-transmitting portion is used for homogenizing light; and / or,

[0019] Each of the light-guiding light-emitting surfaces is disposed facing one of the light-transmitting portions, and the light-transmitting portion has a light-transmitting light-incident surface facing the light-guiding light-emitting surface, the area of ​​the light-transmitting light-incident surface being larger than the area of ​​the corresponding light-guiding light-emitting surface.

[0020] In some embodiments, the light-guiding receiving surface is formed with a light-guiding groove, and the portion of the light-emitting surface of the light source assembly extends into the light-guiding groove.

[0021] In some embodiments, the signal light module includes a plurality of light guide elements, the light source assembly includes a plurality of lamp beads, each lamp bead has a light-emitting surface, and the light-emitting surface of each lamp bead is disposed corresponding to the light-receiving surface of one of the light guide elements;

[0022] The light source assembly includes a circuit board, and multiple LED beads are disposed on the same circuit board; or...

[0023] The light source assembly includes multiple circuit boards, and the multiple LED beads are disposed one-to-one on the multiple circuit boards.

[0024] In some embodiments, the multiple light guide strips of each light guide element are integrally arranged.

[0025] Secondly, this application provides a vehicle lamp, which includes a lamp housing and a signal light module as described above, wherein the signal light module is disposed in the lamp housing.

[0026] The signal light assembly and vehicle light based on the embodiments of this application utilize the reflection of light within the light guide element. When light is emitted from the light guide emitting surface, the light guide emitting surface is illuminated, allowing it to function similarly to a light source. Thus, when light is emitted from the light guide emitting surfaces of multiple light guide strips, multiple light-transmitting parts can be illuminated accordingly. The multi-segment light guide design facilitates flexible adjustment of the positions of the multiple light guide emitting surfaces, resulting in a flexible light emission method. Furthermore, the light emitted from multiple light guide emitting surfaces all originates from the same light-emitting surface of the light source assembly, allowing for more efficient utilization of the light emitted from the same surface. This enables the light emitted from the same surface to illuminate multiple light-transmitting parts, reducing the number of devices with light-emitting surfaces in the light source assembly and saving costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of a traffic light module according to an embodiment of this application;

[0029] Figure 2 This is a side view of a traffic light module according to an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the light path from the light guide surface to the light-transmitting part according to an embodiment of this application;

[0031] Figure 4 This is a three-dimensional structural diagram of a light-guiding and light-emitting surface having a first microstructure according to an embodiment of this application;

[0032] Figure 5 This is a side view of a light guide element comprising a light guide body and a light guide tail, according to an embodiment of this application.

[0033] Figure 6 This is a side view of a light guide element comprising a light guide body, a light guide branch, and a light guide tail, according to an embodiment of this application.

[0034] Figure 7 This is a schematic diagram of a three-dimensional structure of a light guide body in the shape of a straight strip according to an embodiment of this application;

[0035] Figure 8 This is a schematic diagram of a three-dimensional structure of a light guide body in a curved shape according to an embodiment of this application;

[0036] Figure 9 This is a side view of a portion of a light source in a light guide groove according to an embodiment of this application.

[0037] Figure 10 This is a three-dimensional structural diagram of a plurality of light guide elements arranged side by side according to an embodiment of this application.

[0038] Figure label:

[0039] 10. Traffic light module;

[0040] 100. Light source assembly; 111. Light-emitting surface; 110. LED chip; 120. Circuit board;

[0041] 200, Light guide element; 201, Light guide receiving surface; 202, Light guide emitting surface; 2021, First microstructure; 210, Light guide strip; 2101, Light inlet end; 2102, Light outlet end; 211, Light guide body; 212, Light guide tail; 213, Light guide branch; 203, Light guide groove;

[0042] 300. Light-transmitting component; 310. Light-transmitting part; 311. Light-transmitting entrance surface; 312. Light-transmitting exit surface. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0044] The inventors have discovered that in multi-area illumination schemes for traffic lights, the need to illuminate multiple areas while simultaneously ensuring effective illumination can lead to problems such as a large number of light source particles, low light utilization, and a large space occupied by the light guide structure. For example, related technologies for multi-area illumination of traffic lights may include thick-walled schemes and reflector schemes. In the thick-walled scheme, the light guide structure receives and conducts light generated by the light source. The large area of ​​the light guide structure projects the light onto multiple transparent parts of the thick-walled light guide plate, from which the light exits. However, the thick-walled scheme results in a large volume and weight of traffic lights, and there is a problem of light being blocked and not being fully utilized. In the reflector scheme, the light generated by the light source is reflected to the corresponding light-emitting area by a reflector. This requires a large focal length for the reflector, as well as a large number of light source particles and high luminous flux, and also occupies a large space. Based on this, the embodiments of this application improve the structure of the traffic light module, providing a traffic light module and vehicle light.

[0045] like Figure 1 and Figure 2 The diagram shown is a structural schematic of a traffic light module 10 according to an embodiment of this application. The traffic light module 10 includes a light source assembly 100, a light-transmitting element 300, and at least one light guide element 200.

[0046] The light source assembly 100 has at least one light-emitting surface 111, and the light source assembly 100 is capable of generating light, with the light emitted from the light-emitting surface 111. The light-transmitting element 300 has multiple light-transmitting portions 310, and a light guide element 200 is disposed in the optical path between the light-emitting surface 111 and the light-transmitting portion 310 of the light source assembly 100, for guiding the light emitted from the light-emitting surface 111 to the light-transmitting portion 310. The light is emitted from the multiple light-transmitting portions 310, thereby making the light-transmitting element 300 present an effect of multiple areas being illuminated.

[0047] like Figure 1 and Figure 2 As shown, each light guide element 200 includes multiple light guide strips 210 for transmitting light. Each light guide strip 210 has a light inlet end 2101 and a light outlet end 2102. Light enters from the light inlet end 2101 of the light guide strip 210 and exits from the light outlet end 2102. The light outlet end 2102 of the light guide strip 210 located upstream of the optical path is connected to the light inlet ends 2101 of the multiple light guide strips 210 located downstream of the optical path. The upstream of the optical path refers to the region where light first arrives when traveling between two adjacent light guide strips 210, and the downstream of the optical path refers to the region where light arrives later when traveling between two adjacent light guide strips 210. Figure 2As shown, the light-inlet end 2101 (i.e., the light-inlet end 2101 of the light guide 210 into which the light initially enters) not connected to other light guide strips 210 has a light-guiding receiving surface 201 facing the light-emitting surface 111. The multiple light-emitting ends 2102 (i.e., the light-emitting ends 2102 of the multiple light guide strips 210 to which the light finally reaches) not connected to other light guide strips 210 all have a light-guiding emitting surface 202 facing the light-transmitting part 310. The light emitted from the light-emitting surface 111 of the light source assembly 100 enters one of the light guide strips 210 through the light-guiding receiving surface 201, and then undergoes at least one beam splitting to enter the multiple light guide strips 210 downstream of the light path. Finally, it is emitted from the light-guiding emitting surface 202 of the multiple light guide strips 210 and then projected onto the light-transmitting part 310, illuminating the multiple light-transmitting parts 310.

[0048] In this process, at least a portion of the light received by the light-emitting surface 111 enters the interior of the light guide element 200, undergoes at least one reflection, and is emitted from the light-emitting surface 202. This light is then projected onto the light-transmitting portion 310 along a direction that forms an angle with the extending direction of the corresponding light guide strip 210. Figure 2 The diagram illustrates the optical path of one of the light rays inside the light guide element 200. In this embodiment, the reflection of light rays entering the light guide element 200 primarily relies on the principle of total internal reflection. That is, when light rays travel from an optically denser medium (light guide strip 210) to an optically less dense medium (the structure or air outside the light guide strip 210) at a certain angle, refraction occurs. If the angle of incidence is large enough, the angle of refraction will approach 90 degrees. At this point, the refracted light ray propagates almost along the interface of the optically denser medium. When the angle of incidence reaches or exceeds a certain critical angle, the refracted light ray disappears completely, and the incident light ray is completely reflected back into the optically denser medium. This is the phenomenon of total internal reflection. Therefore, light rays entering the light guide strip 210 can be completely reflected back into the light guide strip 210 until they reach the light-emitting surface 202, and finally exit from the light-emitting surface 202.

[0049] In this embodiment, the total internal reflection phenomenon at the interface of an optically dense medium is used to guide light. After the light enters the light guide element 200, at least a portion of the light undergoes at least one reflection at the interface of the light guide strip 210 and then exits from the light guide exit surface 202. Figure 3 As shown, a portion of the light rays emitted from the light-guiding surface 202 extend along the corresponding light guide strip 210 (i.e., Figure 2 The portion of light with the light-guiding surface 202 extending in the direction H) is projected onto the light-transmitting portion 310, and another portion of light is projected along the same direction as the corresponding light guide strip 210 (i.e., Figure 2The light-guiding light-emitting surface 202 extends at an angle (H) to the light-transmitting portion 310, creating the effect of the light-guiding light-emitting surface 202 being illuminated. This allows the light-guiding light-emitting surface 202 to function as a light source, thus illuminating multiple light-transmitting portions 310 when light is emitted from the light-guiding light-emitting surfaces 202 of the multiple light guides 210. Furthermore, the light emitted from the multiple light-guiding light-emitting surfaces 202 can originate from the same light-emitting surface 111 of the light source assembly 100, allowing for more efficient utilization of the light emitted from the same light-emitting surface 111. This enables the light emitted from the same light-emitting surface 111 to illuminate multiple light-transmitting portions 310, reducing the number of devices with light-emitting surfaces 111 in the light source assembly 100 and saving costs.

[0050] In addition, the light guide element 200 includes multiple light guide strips 210. The connection direction of the multiple light guide strips 210 is flexible, so that the light guiding and light emitting surfaces 202 of the multiple light guide strips 210 are respectively facing the position of the light transmitting part 310. The position selection of the light transmitting part 310 is more flexible, and the light guide strips 210 are small in size and light in weight, which makes it easier to reduce the space occupied by the entire signal light module 10, thereby facilitating the miniaturization of the vehicle light and the lightweight design.

[0051] like Figure 3 As shown in the embodiment of this application, some of the light rays are projected onto the light-transmitting part 310 at an angle to the extension direction of the corresponding light guide strip 210, so that the light rays emitted from the light guide surface 202 can be projected onto the light-transmitting part 310 over a large area, thereby reducing the distance between the light guide surface 202 and the light-transmitting part 310. This helps to reduce the volume and eliminates the need to set other optical structures between the light guide surface 202 and the light-transmitting part 310 to adjust the light, thus saving material usage.

[0052] Light propagates inside the light guide strip 210. Due to differences in the position of reflection and the angle of incidence, the light emitted from the light guide surface 202 may exhibit uneven luminous flux distribution, resulting in uneven brightness when the light-transmitting part 310 is illuminated. In some embodiments, the light guide surface 202 or the light-transmitting part 310 is provided to perform light homogenization processing, so that the light-transmitting part 310 can present an effect of being uniformly illuminated.

[0053] When the light guide surface 202 is selected for light homogenization, optionally, as follows: Figure 4As shown, a light-guiding surface 202 is provided with multiple first microstructures 2021, which homogenize the light. The first microstructures 2021 can be convex or concave relative to the outer edge of the light-guiding surface 202. When light from inside the light guide strip 210 is emitted from the light-guiding surface 202, it undergoes multiple refractions and reflections at the walls of these first microstructures 2021 before finally exiting, thus achieving a homogenized light effect. For example, the first microstructures 2021 are convex relative to the outer edge of the light-guiding surface 202. Light from inside the light guide strip 210 is refracted at the wall of one of the first microstructures 2021 and exits outside that first microstructure 2021, continuing to be projected onto other first microstructures 2021, where it is further refracted and reflected. Thus, the light is homogenized under the action of multiple first microstructures 2021. Alternatively, the portion of the light guide strip 210 with the light-guiding surface 202 may include a light-monopolizing material. The light is emitted after multiple refractions and reflections at the light-monopolizing material, which can also perform light-monopolizing processing on the light.

[0054] When the light-guiding surface 202 is selected for uniform light distribution, the light-transmitting part 310 can also be configured to deflect the light, thereby adjusting the emission angle of the light emitted from the light-transmitting part 310. Optionally, the light-transmitting part 310 can be configured to diverge the light, allowing the light emitted from the light-transmitting part 310 to be projected at a large angle to cover a wider area, enabling external observers to observe the light-transmitting part 310 being illuminated from a wide viewing angle. Optionally, the light-transmitting part 310 can be configured to emit the entire beam of light in a direction deviating from the central axis of the light-transmitting part 310, adjusting the entire beam of light to be emitted at a preset deflection angle, thus meeting the needs of external observers to observe the light-transmitting part 310 being illuminated from a specific viewing angle.

[0055] When the light-transmitting part 310 is selected for light homogenization, optionally, the surface of the light-transmitting part 310 has a plurality of second microstructures, and the light reaching the light-transmitting part 310 is refracted and reflected multiple times by the plurality of second microstructures to achieve light homogenization; optionally, the light-transmitting part 310 has a light homogenizing material, and the light reaching the light-transmitting part 310 is refracted and reflected multiple times by the light homogenizing material to achieve light homogenization.

[0056] In this embodiment, the types of the first microstructure 2021 of the light-guiding surface 202 and the second microstructure of the light-transmitting portion 310 are not limited; any microstructure capable of homogenizing light in the art is applicable to this application. Similarly, the types of homogenizing materials included in both the light-guiding surface 202 and the light-transmitting portion 310 are not limited; any homogenizing material capable of homogenizing light in the art is applicable to this application.

[0057] The multiple light-transmitting portions 310 of the light-transmitting component 300 are arranged at intervals. In order to improve the utilization rate of light, each light-transmitting portion 310 is provided with a light-guiding surface 202 corresponding to it. That is, each light-guiding surface 202 is arranged facing a light-transmitting portion 310, and the light emitted from each light-guiding surface 202 is projected onto the surface of the corresponding light-transmitting portion 310 to illuminate the corresponding light-transmitting portion 310 and improve the utilization rate of light. The light-transmitting part 310 has a light-transmitting surface 311 facing the light-guiding light-emitting surface 202. Light rays emitted from the light-guiding light-emitting surface 202 are projected onto the light-transmitting surface 311 and then enter the light-transmitting part 310. The area of ​​the light-transmitting surface 311 is larger than the area of ​​its corresponding light-guiding light-emitting surface 202. When a portion of the light rays are projected onto the light-transmitting part 310 at an angle to the extension direction of the corresponding light guide strip 210, the light-transmitting surface 311 can receive all the light rays emitted from the light-guiding light-emitting surface 202. The size of the light-transmitting surface 312 of the light-transmitting part 310 can be selected according to the area of ​​the light-transmitting surface 311, so that the size of the light-transmitting surface 312 is also large. The light rays are emitted from the light-transmitting surface 312, achieving the effect of illuminating a large area of ​​the light-transmitting part 310.

[0058] Of course, in some other embodiments, when the distance between two adjacent light-transmitting parts 310 is relatively close, a light-guiding surface 202 with appropriate light flux can be selected to correspond to the two adjacent light-transmitting parts 31 that are relatively close, and the two light-transmitting parts 310 can be lit by one light-guiding surface 202.

[0059] The light-transmitting component 300 also includes a light-shielding body, which can block light, or the light transmittance of the light-shielding body is less than the light transmittance of the light-transmitting part 310. The light-transmitting part 310 is provided on the light-shielding body so that when the light-transmitting part 310 is lit, it can present a clear boundary.

[0060] Understandably, only when the light inside the light guide strip 210 is projected onto the interface at a suitable angle can the light be further totally reflected and enter the interior of the light guide strip 210. The more light flux retained inside the light guide strip 210, the higher the light utilization rate. In addition, the light-emitting end 2102 of the light guide strip 210 located upstream of the optical path and the light-incoming end 2101 of the light guide strip 210 located downstream of the optical path are connected in a one-to-many manner. The light-incoming end 2101 of the light guide strip 210 located downstream of the optical path needs to be bent. Thus, the bending method of the light-incoming end 2101 of the light guide strip 210 located downstream of the optical path needs to be selected so that the light emitted from the light-emitting end 2102 of the light guide strip 210 upstream of the optical path can be projected onto the interface of the light-incoming end 2101 of the light guide strip 210 downstream of the optical path at a suitable angle, thereby retaining more light inside the light guide strip 210 and reducing light loss.

[0061] In some embodiments, each light guide element 200 has multiple light guide strips 210 including a light guide body 211. The light guide body 211 has a light guide receiving surface 201. After passing through the light guide receiving surface 201, light first enters the light guide body 211, then is split and enters multiple light guide strips 210, and finally exits from multiple light guide emitting surfaces 202. Figure 5 As shown, along the direction from the light-inlet end 2101 to the light-outlet end 2102 of the light guide strip 210, except for the light guide body 211, the light-inlet end 2101 of the light guide strip 210 is bent away from the optical axis M of the light-outlet end 2102 connected to it and located upstream of the optical path. The optical axis M of the light-outlet end 2102 upstream of the optical path is located at the geometric center of the cross-section of the light-outlet end 2102. By adopting the above bending method, the light-outlet end 2102 of the light guide strip 210 upstream of the optical path and the light-inlet end 2101 of the light guide strip 210 downstream of the optical path are smoothly transitioned, so that the light guide strip 210 upstream of the optical path can transmit more light into the light guide strip 210 downstream of the optical path, thereby reducing light loss.

[0062] Optionally, the bending radius of the light-inlet end 2101 of the light guide strip 210 (excluding the light guide body 211) is r1, and the diameter of the cross-section of the light guide strip 210 (excluding the light guide body 211) is M1. r1 / M1 ≥ 4. Within this ratio range, the bending angle of the light-inlet end 2101 of the light guide strip 210 (excluding the light guide body 211) is appropriate, enabling it to receive more light transmitted from the upstream of the optical path and reduce light loss. When r1 / M1 < 4, the bending degree of the light-inlet end 2101 of the downstream light guide strip 210 is too large, which can easily lead to light leakage at the light-outlet end 2102 of the upstream light guide strip 210.

[0063] The extension direction of the light-emitting end 2102 of the downstream light guide strip 210 can be selected according to the position of the light-transmitting part 310 where the light is finally projected. Optionally, the light-emitting end 2102 of the downstream light guide strip 210 can be straight, that is, extending in a straight line. Optionally, the light-emitting end 2102 of the downstream light guide strip 210 can be curved, and the curvature direction of the light-emitting end 2102 of the same light guide strip 210 can be the same as or opposite to the curvature direction of the light-inlet end 2101.

[0064] like Figure 5 As shown, each light guide element 200 has multiple light guide strips 210 including multiple light guide tails 212. Each light guide tail 212 has a light guiding surface 202, that is, the light inside the light guide element 200 is finally emitted from the light guiding surface 202 of the multiple light guide tails 212.

[0065] In some embodiments, the light-emitting end 2102 of the light guide body 211 is connected to the light-inlet end 2101 of the plurality of light guide tails 212. The light entering the light guide body 211 is split and directly enters the plurality of light guide tails 212, and is emitted from the light-emitting surface 202 of the plurality of light guide tails 212. That is, the light guide body 211 and the plurality of light guide tails 212 perform one branching light guiding.

[0066] To further consider the flexibility of the light guiding direction of the multiple light guide strips 210 of the light guide element 200, in some embodiments, such as Figure 6 As shown, each light guide element 200 further includes at least two light guide branches 213 in its multiple light guide strips 210. The light guide branches 213 are disposed in the optical path between the light guide body 211 and the light guide tail 212. The light-inlet end 2101 of each light guide branch 213 is connected to the light-outlet end 2102 of one of the light guide strips 210 located upstream of the optical path, and the light-outlet end 2102 of each light guide branch 213 is connected to the light-inlet end 2101 of the multiple light guide strips 210 located downstream of the optical path. Optionally, the light entering the light guide body 211 enters the light guide tail 212 through only one light guide branch 213, and then exits from the light guide emitting surface 202 of the light guide tail 212. That is, the light emitting end 2102 of the light guide body 211 is connected to the light emitting end 2101 of multiple light guide branches 213, and the light emitting end 2102 of each light guide branch 213 is connected to the near light end of multiple light guide tails 212. The light guide body 211, multiple light guide branches 213 and multiple light guide tails 212 undergo two branching light guides. Alternatively, each light entering the light guide body 211 enters the light guide tail 212 through multiple light guide branches 213. That is, the light guide body 211, multiple light guide branches 213 and multiple light guide tails 212 undergo more than two branching light guides. However, since there may be light loss at the connection between the light-emitting end 2102 of the light guide strip 210 located upstream of the optical path and the light-incoming end 2101 of the multiple light guide strips 210 located downstream of the optical path, the fewer the number of branching of the light guide body 211, multiple light guide branches 213 and multiple light guide tails 212, the smaller the light loss. Therefore, while taking into account the flexibility of the multiple light guide strips 210 corresponding to multiple head light-transmitting parts 310 and the light loss, the number of branching of the light guide body 211, multiple light guide branches 213 and multiple light guide tails 212 should be minimized.

[0067] In some embodiments, the diameter of the cross-section of the light guide strip 210 (including the light guide tail 212 and the light guide branch 213) other than the light guide body 211 is M1, where M1 satisfies: 4mm ≤ M1 ≤ 8mm. For example, M1 can be 4mm, 5mm, 6mm, 7mm, 8mm, or any range thereof. Within this range, the size of the light guide strip 210 other than the light guide body 211 is appropriate, enabling it to transmit light with a suitable luminous flux to meet the brightness requirements when the light-transmitting part 310 is lit. The light guide strip 210 uses less material, which also appropriately reduces the weight of the signal light module 10.

[0068] In some embodiments, the diameter of the cross-section of the light guide body 211 is M2, where M2 satisfies: 10mm ≤ M2 ≤ 15mm. For example, M2 can be 10mm, 11mm, 12mm, 13mm, 15mm, or any range thereof. Within this diameter range, the thickness of the light guide body 211 is appropriate, allowing it to have a light-receiving surface 201 of suitable size to receive more light emitted from the light-emitting surface 111. Simultaneously, it enables the light guide body 211 to support multiple other light guide strips 210 connected to it.

[0069] In some embodiments, such as Figure 7 As shown, the light guide body 211 is in the shape of a straight strip; or, as... Figure 8 As shown, the light-emitting end 2102 of the light guide body 211 is bent relative to the light-incoming end 2101. The specific shape of the light guide body 211 can be selected according to the assembly space. For example, the optical axis M of the part of the light guide body 211 connected with other light guide strips 210 is perpendicular to the light-transmitting surface 311. When the installation space is limited in the direction perpendicular to the light-transmitting surface 311, the light-emitting end 2102 of the light guide body 211 is bent relative to the light-incoming end 2101 to reduce the size of the light guide element 200 in the direction perpendicular to the light-transmitting surface 311. When the installation space is limited in the direction parallel to the light-transmitting surface 311, the light guide body 211 is straight to reduce the size of the light guide element 200 in the direction parallel to the light-transmitting surface 311.

[0070] like Figure 9 As shown, the light-guiding receiving surface 201 has a light-guiding groove 203, and the portion of the light source assembly 100 having the light-emitting surface 111 extends into the light-guiding groove 203, so that the light-guiding receiving surface 201 can more fully receive the light emitted from the light-emitting surface 111. The light-guiding receiving surface 201 is also spaced apart from the light source assembly 100 to prevent collisions between the light-guiding receiving surface 201 and the light source assembly 100 in the event of vibration.

[0071] In some embodiments, such as Figure 10As shown, when the number of light-transmitting portions 310 of the light-transmitting element 300 is large, or when the multiple light-transmitting portions 310 are distributed at a large distance, the signal light module 10 is configured to include multiple light guide elements 200. The multiple light guide elements 200 are arranged at intervals to facilitate flexible setting of the positions of the multiple light guide elements 200 to match the positions of the multiple light-transmitting portions 310 of the light-transmitting element 300. The light source assembly 100 can be configured to include multiple lamp beads 110, each lamp bead 110 having a light-emitting surface 111. The light-emitting surface 111 of each lamp bead 110 is set to correspond to the light-guiding receiving surface 201 of a light guide element 200, so that an appropriate power lamp bead 110 can be selected according to the brightness requirements of the corresponding light-transmitting portion 310.

[0072] In some embodiments, the light source assembly 100 includes a circuit board 120, with multiple LED beads 110 disposed on the same circuit board 120 for batch installation of the multiple LED beads 110. Alternatively, the light source assembly 100 includes multiple circuit boards 120, with multiple LED beads 110 correspondingly disposed on the multiple circuit boards 120, facilitating flexible adjustment of the position of the LED beads 110 according to the position of the light-guiding receiving surface 201 of the light guide element 200. This application does not limit the type of LED beads 110; any device that can be used in this field and can emit light is applicable to this application. For example, the LED beads 110 may be LED beads.

[0073] In this embodiment, the multiple light guide strips 210 of each light guide element 200 are made of the same material, and the multiple light guide strips 210 of each light guide element 200 are integrally arranged to reduce light loss at the connection points of adjacent light guide strips 210 due to different media. This embodiment does not limit the material of the light guide strips 210; any material that can be used to conduct light in this field is applicable. For example, the material of the light guide strips 210 is selected from polycarbonate (PC), polyvinyl chloride (PVC), etc.

[0074] This application embodiment also provides a vehicle lamp, which includes a lamp housing and a signal light module 10 as described above. The signal light module 10 is disposed in the lamp housing, and the lamp housing provides support and protection for the signal light module 10. The light source assembly 100 and the light-transmitting part 310 can both be mounted in the lamp housing. The light guide element 200 is mounted on the circuit board 120 of the light source assembly 100, or the light guide element 200 is mounted in the light-transmitting part 310. Alternatively, the vehicle lamp may also include a light guide bracket with a mounting groove. Multiple light guide strips 210 of the light guide element 200 are disposed in the light guide groove to improve the installation stability of the light guide element 200.

[0075] The vehicle lights in this application embodiment include front lights and rear lights. By employing the signal light module 10 described above, the power consumption of the vehicle lights can be reduced, and the size of the vehicle lights can also be reduced.

[0076] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0077] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A signal light module, characterized by, include: A light source assembly having at least one light-emitting surface; The light-transmitting component has multiple light-transmitting sections; and At least one light guide element, each light guide element comprising multiple light guide strips for conducting light, each light guide strip having a light inlet end and a light outlet end, the light outlet end of the light guide strip located upstream of the light path being connected to the light inlet ends of the multiple light guide strips located downstream of the light path, and the light inlet end not connected to other light guide strips having a light guide receiving surface facing the light emitting surface, and the multiple light outlet ends not connected to other light guide strips each having a light guide emitting surface facing the light-transmitting portion; wherein, at least a portion of the light from the light emitting surface received by the light guide receiving surface enters the interior of the light guide element, is reflected at least once, and is emitted from the light guide emitting surface, and is projected onto the light-transmitting portion in a direction at an angle to the extension direction of the corresponding light guide strip.

2. The traffic light module according to claim 1, characterized in that, Each of the light guide elements comprises a light guide body, and the light guide body has the light receiving surface; Along the direction from the light-inlet end of the light guide strip toward the light-outlet end, the light-inlet end of the light guide strip, excluding the light guide body, is bent away from the optical axis of the light-outlet end connected to it and located upstream of the optical path, and the bending radius is r1. The diameter of the cross-section of the light guide strip, excluding the light guide body, is M1, and r1 / M1≥4.

3. The traffic light module according to claim 2, characterized in that, The light guide body is in the shape of a straight strip; or, The light-emitting end of the light guide body is bent relative to the light-incoming end.

4. The traffic light module according to claim 2, characterized in that, Each of the light guide elements has multiple light guide strips, each of which has a light guide tail. The light-emitting end of the light guide body is connected to the light-incoming end of the plurality of light guide tails; or... Each of the light guide elements further includes at least two light guide branches on the multiple light guide strips. The light guide branches are disposed on the optical path between the light guide body and the light guide tail. The light-inlet end of each light guide branch is connected to the light-outlet end of one of the light guide strips located upstream of the optical path, and the light-outlet end of each light guide branch is connected to the light-inlet end of the multiple light guide strips located downstream of the optical path.

5. The traffic light module according to claim 2, characterized in that, M1 satisfies: 4mm ≤ M1 ≤ 8mm; and / or, The diameter of the cross-section of the light guide body is M2, and M2 satisfies: 10mm≤M2≤15mm.

6. The traffic light module according to claim 1, characterized in that, The light-guiding surface is used to homogenize the light; and / or, The light-transmitting portion is used for homogenizing light; and / or, Each of the light-guiding light-emitting surfaces is disposed facing one of the light-transmitting portions, and the light-transmitting portion has a light-transmitting light-incident surface facing the light-guiding light-emitting surface, the area of ​​the light-transmitting light-incident surface being larger than the area of ​​the corresponding light-guiding light-emitting surface.

7. The signal module of claim 1, wherein, The light-guiding receiving surface is formed with a light-guiding groove, and the portion of the light-emitting surface of the light source assembly extends into the light-guiding groove.

8. The traffic light module according to claim 1, characterized in that, The signal light module includes multiple light guide elements, and the light source assembly includes multiple LED beads, each LED bead having a light-emitting surface, and the light-emitting surface of each LED bead being disposed corresponding to the light-receiving surface of one of the light guide elements; The light source assembly includes a circuit board, and multiple LED beads are disposed on the same circuit board; or... The light source assembly includes multiple circuit boards, and the multiple LED beads are disposed one-to-one on the multiple circuit boards.

9. The signal module of any one of claims 1-8, wherein, The multiple light guide strips of each light guide element are integrated into one unit.

10. A vehicle lamp characterized by include: Lamp housing; and The signal light module according to any one of claims 1-9, wherein the signal light module is disposed on the lamp housing.

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