Vehicle signal lamp

Abstract

The invention discloses a vehicle signal lamp which comprises a rear shell, a light source substrate arranged on the rear shell, a plurality of light sources arranged on the light source substrate and a transparent lampshade covering the light source substrate and fixed to the rear shell. A containing cavity is formed between the transparent lampshade and the rear shell, the light source substrate and the light sources are all arranged in the containing cavity, and a plurality of transparent protrusions playing a light diffusion role are arranged on the face, close to the light source substrate, of the transparent lampshade. According to the vehicle signal lamp, the multiple transparent protrusions playing a light diffusion role are arranged on the face, close to the light source substrate, of the transparent lampshade, when the vehicle signal lamp is used, light rays emitted by the multiple light sources are diffused through the multiple transparent protrusions playing the light diffusion role and then emitted out, the light emitting uniformity of the vehicle signal lamp is good, and the service life of the vehicle signal lamp is prolonged. And the light-emitting range is large.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of light-emitting devices, in particular to a vehicle signal lamp. BACKGROUND

[0002] With the popularization of automobiles, the development of car light technology and the improvement of public aesthetic requirements, people have higher and higher requirements for car lights. Car lights are various traffic lights installed on cars to ensure safe driving. There are two types of lighting and signaling.

[0003] Vehicle signal lamps are important devices to ensure the normal driving of motor vehicles in accordance with regulations. Road users receive light signals from car signal lamps to determine the existence of the car, the width of the car body, and the driving state of turning, decelerating or stopping, thereby improving traffic safety.

[0004] Vehicle signal lamps have high requirements for light emission uniformity, and the light emission diffusion surface of traditional vehicle signal lamps does not have a light diffusion microstructure, resulting in defects such as uneven light emission and small light emission range. SUMMARY

[0005] Therefore, it is necessary to provide a vehicle signal lamp that can solve the above problems.

[0006] A vehicle signal lamp, comprising a rear shell, a light source substrate arranged on the rear shell, a plurality of light sources arranged on the light source substrate, and a transparent lampshade covering the light source substrate and fixed on the rear shell.

[0007] The transparent lampshade and the rear shell form a containing cavity, the light source substrate and the plurality of light sources are arranged in the containing cavity, and the transparent lampshade is provided with a plurality of transparent protrusions for light diffusion on the side close to the light source substrate.

[0008] In one embodiment, the transparent protrusions are triangular pyramids.

[0009] In one embodiment, the side of the transparent lampshade close to the light source substrate includes a first light entry area, a second light entry area and a third light entry area arranged in sequence along the length direction of the transparent lampshade, and the transparent protrusions include first transparent protrusions, second transparent protrusions and third transparent protrusions, the first transparent protrusions are located in the first light entry area, the second transparent protrusions are located in the second light entry area, and the third transparent protrusions are located in the third light entry area.

[0010] The side surface of the first transparent protrusion is a regular quadrilateral with a missing corner, the bottom surface of the groove surrounded by three first transparent protrusions is a regular triangle; the side surface of the second transparent protrusion is a triangle, the bottom surface of the groove surrounded by three second transparent protrusions is a regular triangle; the side surface of the third transparent protrusion is a regular quadrilateral with a missing corner, and the bottom surface of the groove surrounded by three third transparent protrusions is a regular triangle.

[0011] In one embodiment, a separation strip extending along the width direction of the transparent lampshade is further arranged in the second light-in area, and a plurality of fourth transparent protrusions are arranged in the separation strip and spaced apart along the width direction of the transparent lampshade, the fourth transparent protrusions are in the shape of a quadrangular pyramid, and the fourth transparent protrusions play a light diffusion role.

[0012] In one embodiment, the ratio of the size of the fourth transparent protrusion, the width of the separation strip, and the size of the second transparent protrusion is 1:1.2-1.8:2.4-6.

[0013] In one embodiment, the side of the transparent lampshade close to the light source substrate, the side of the transparent lampshade away from the light source substrate, and the light source substrate are parallel to each other.

[0014] In one embodiment, the transparent lampshade has a top wall and an annular side wall, and a plurality of reinforcing ribs are arranged on the inner side of the annular side wall, the reinforcing ribs are in the shape of long strip protrusions.

[0015] In one embodiment, the transparent lampshade further comprises a plurality of mounting portions arranged at the connection between the top wall and the annular side wall, mounting grooves are arranged on the mounting portions, and embedded nuts are fixed in the mounting grooves, screws are sequentially threaded through the rear shell and the light source substrate and then screwed into the embedded nuts, so as to fix the rear shell, the light source substrate, and the transparent lampshade together.

[0016] In one embodiment, a plurality of positioning structures are further arranged on the mounting portions, and a positioning matching structure matching the positioning structures is arranged on the light source substrate.

[0017] In one embodiment, an annular sealing groove surrounding the light source substrate is further arranged on the rear shell, an annular protrusion matching the annular sealing groove is further arranged on the annular side wall, and curing glue is filled in the annular sealing groove, when the transparent lampshade is arranged on the light source substrate, the annular protrusion is accommodated in the annular sealing groove and is sealed and fixed after curing of the curing glue.

[0018] The transparent lampshade of the vehicle signal lamp of the present application is provided with a plurality of transparent protrusions for light diffusion on the side close to the light source substrate, and the light emitted by the plurality of light sources is diffused by the plurality of transparent protrusions for light diffusion and then emitted, so that the light emission is uniform and the light emission range is large. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0020] Wherein:

[0021] Figure 1 It is a schematic diagram of the structure of a vehicle signal lamp in one direction.

[0022] Figure 2 It is a schematic diagram of the structure of a vehicle signal lamp in one direction. Figure 1

[0023] Figure 3 It is a schematic diagram of the structure of a vehicle signal lamp in one direction. Figure 1

[0024] Figure 4 It is a schematic diagram of the structure of a vehicle signal lamp in one direction. Figure 3 DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0026] In combination with Figure 1 and Figure 2 , the present application discloses a vehicle signal lamp, comprising a rear shell 10, a light source substrate 20 arranged on the rear shell 10, a plurality of light sources 30 arranged on the light source substrate 20, and a transparent lampshade 40 covering the light source substrate 20 and fixed on the rear shell 10.

[0027] ​​​The transparent lampshade 40 and the rear shell 10 form a containing cavity, the light source substrate 20 and the plurality of light sources 30 are arranged in the containing cavity, and the transparent lampshade 40 is provided with a plurality of transparent protrusions 42 for light diffusion on the side close to the light source substrate 20.

[0028] The transparent lampshade 40 of the vehicle signal lamp of the present application is provided with a plurality of transparent protrusions 42 for light diffusion on the side close to the light source substrate 20, and when the vehicle signal lamp is used, the light emitted by the plurality of light sources 30 is diffused by the plurality of transparent protrusions 42 for light diffusion and then emitted, so that the light emission uniformity is better and the light emission range is larger.

[0029] It should be pointed out that the transparent lampshade 40, the transparent protrusions 42 and the like in the present application can be fully transparent or translucent.

[0030] Preferably, in combination with Figure 3 and Figure 4 In the present embodiment, the transparent protrusions 42 are in the shape of triangular pyramids. The transparent protrusions 42 in the shape of triangular pyramids can play a better light diffusion role.

[0031] More preferably, in the present embodiment, the side close to the light source substrate 20 of the transparent lampshade 40 includes, along the length direction of the transparent lampshade 40, a first light inlet region 401, a second light inlet region 402 and a third light inlet region 403 arranged in sequence, the transparent protrusions 42 include a first transparent protrusion 422, a second transparent protrusion 424 and a third transparent protrusion 426, the first transparent protrusion 422 is located in the first light inlet region 401, the second transparent protrusion 424 is located in the second light inlet region 402, and the third transparent protrusion 426 is located in the third light inlet region 403.

[0032] The side surface of the first transparent protrusion 422 is a concave square, and the bottom surface of the groove surrounded by the three first transparent protrusions 422 is a regular triangle. Specifically, the concave side of the side surface of the three first transparent protrusions 422 is the side of the regular triangle of the bottom surface of the groove.

[0033] The side surface of the second transparent protrusion 424 is a triangle, and the bottom surface of the groove surrounded by the three second transparent protrusions 424 is a regular triangle. Specifically, the bottom side of the side surface of the three second transparent protrusions 424 is the side of the regular triangle of the bottom surface of the groove.

[0034] The side surface of the third transparent protrusion 426 is a concave square, and the bottom surface of the groove surrounded by the three third transparent protrusions 426 is a regular triangle. Specifically, the concave side of the side surface of the three third transparent protrusions 426 is the side of the regular triangle of the bottom surface of the groove.

[0035] The first transparent protrusion 422 can internally refract the emitted light and scatter it out, increasing the left and right emission angle to 180°, the upper emission angle to 150°, and the lower emission angle to 90°, thereby increasing the light emission range and enabling pedestrians or drivers to see the light signal to the maximum extent. The second transparent protrusion 424 can concentrate the internally refracted light, and the emission angle is 60°, thereby increasing the light intensity in the central area and enabling pedestrians or drivers to see the light signal at a distance of about 200 meters in the rear. The third transparent protrusion 426 can internally refract the emitted light and concentrate it out, and the left and right emission angle is increased to 180°, the upper emission angle is 90°, and the lower emission angle is 60°. The upper emission angle of 90° can supplement the light in the central area 424 and increase the light intensity, and the lower emission angle of 60° can constrain the light type, avoid irradiating the ground, cause light loss, and enable pedestrians or drivers to see the light signal to the maximum extent.

[0036] In summary, the above structure of the first transparent protrusion 422, the second transparent protrusion 424, and the third transparent protrusion 426 can greatly improve the light emission uniformity and light emission range of the vehicle signal lamp.

[0037] Specifically, in the present embodiment, the shape, size, and arrangement of the first transparent protrusion 422 and the third transparent protrusion 426 are completely the same.

[0038] In combination Figure 4 In the present embodiment, the second light entry area 402 is also provided with a separation strip 4021 extending along the width direction of the transparent lampshade 40, and the separation strip 4021 is provided with a plurality of fourth transparent protrusions 44 arranged at intervals along the width direction of the transparent lampshade 40. The fourth transparent protrusions 44 are in the shape of a four-sided pyramid, and the fourth transparent protrusions 44 also have a light diffusion effect.

[0039] In combination Figure 4 The separation strip 4021 divides the second light entry area 402 into two areas.

[0040] The separation strip 4021 can cut off the light, and the strongest light intensity line is irradiated upward, thereby avoiding affecting the drivers of the rear vehicles. The fourth transparent protrusions 44 in the shape of a four-sided pyramid have a light collection effect, and can cause the internally irregularly refracted light to be scattered out again.

[0041] Specifically, in the present embodiment, the ratio of the size of the fourth transparent protrusion 44, the width of the separation strip 4021, and the size of the second transparent protrusion 424 is 1:1.2-1.8:2.4-6.

[0042] Such a size setting allows only one fourth transparent protrusion 44 to be arranged in the width direction of the separation strip 4021.

[0043] Preferably, in the embodiment, the transparent lampshade 40 has one side close to the light source substrate 20, one side away from the light source substrate 20, and the light source substrate 20 is parallel to each other.

[0044] It should be noted that, in the embodiment, the light source substrate 20 is an aluminum substrate, and the light source 30 is a plurality of LEDs arranged on the light source substrate 20.

[0045] Specifically, in the embodiment, the rear shell 10 is a metal piece (preferably a cast aluminum piece), and the light source substrate 20 and the rear shell 10 are coated with a heat dissipation silicone grease, thereby increasing the contact area between the light source substrate 20 and the rear shell 10, and further improving the heat conduction effect between the light source substrate 20 and the rear shell 10.

[0046] In combination with the drawings, in the embodiment, the transparent lampshade 40 has a top wall 46 and an annular side wall 48, and the inner side of the annular side wall 48 is provided with a plurality of reinforcing ribs 482, which are long strip-shaped protrusions.

[0047] The reinforcing ribs 482 can improve the overall mechanical strength of the transparent lampshade 40, and also have the function of light guiding.

[0048] Specifically, in the embodiment, the length direction of the reinforcing ribs 482 is perpendicular to the top wall 46, and in other embodiments, the length direction of the reinforcing ribs 482 can also form an angle with the top wall 46.

[0049] In combination with the drawings, in the embodiment, the transparent lampshade 40 further includes a plurality of mounting portions 49 arranged at the connection between the top wall 46 and the annular side wall 48, and the mounting portions 49 are provided with mounting grooves 492, and an embedded nut (not shown in the figure) is fixed in the mounting grooves 492. A screw (not shown in the figure) penetrates the rear shell 10 and the light source substrate 20 in turn and is screwed into the embedded nut, thereby fixing the rear shell 10, the light source substrate 20 and the transparent lampshade 40 together.

[0050] The embedded nut is fixed in the mounting groove 492 of the transparent lampshade 40, so that the transparent lampshade 40 can be directly fixed on the rear shell 10, without the need for other auxiliary components to fix the transparent piece, thereby reducing the overall thickness of the lamp.

[0051] Further, during assembly of the transparent lampshade 40, the bottom end of the embedded nut contacts the light source substrate 20, thereby offsetting and buffering the stress of the transparent lampshade 40, greatly enhancing the structural strength of the vehicle signal lamp, and the bottom end of the embedded nut also contacts the front surface of the light source substrate 20, thereby also having the function of heat conduction.

[0052] In addition, the embedded nut also has the functions of anti-dropping and anti-rotation, thereby increasing the overall connection strength.

[0053] Specifically, in the embodiment, the transparent lampshade 40 and the embedded nut are integrally formed.

[0054] Specifically, in the embodiment, the transparent lampshade 40 is cuboid, and the mounting portions 49 are four, and the four mounting portions 49 are respectively located at four corners of the transparent lampshade 40.

[0055] Specifically, in the embodiment, the transparent lampshade 40 adopts PC9330 material, which has high strength, can resist 40g vibration and impact requirements, and can be used in a low temperature environment of-43℃.

[0056] Preferably, in the embodiment, the mounting portions 49 are further provided with a plurality of positioning structures 494, and the light source substrate 20 is provided with a plurality of positioning matching structures 22 matched with the positioning structures 494.

[0057] The positioning structure 494 and the positioning matching structure 22 can be a protrusion and a groove respectively, and cooperation of the two can guarantee the foolproof and positioning functions of the installation.

[0058] Generally, in order to realize the foolproof function, the positioning structure 494 and the positioning matching structure 22 are asymmetrically arranged.

[0059] Preferably, in the embodiment, the rear shell 10 is further provided with an annular sealing groove 12 surrounding the light source substrate 20, the annular side wall 48 is further provided with an annular protrusion 484 matched with the annular sealing groove 12, and the annular sealing groove 12 is filled with curing glue (not shown in the figure). When the transparent lampshade 40 is covered on the light source substrate 20, the annular protrusion 484 is accommodated in the annular sealing groove 12 and is sealed and fixed after curing of the curing glue.

[0060] Through the curing sealing of the curing glue, the sealing property between the transparent lampshade 40 and the rear shell 10 can be greatly improved, so that the vehicle signal lamp can realize underwater sealing.

[0061] Generally, the curing glue can be 907 glue.

[0062] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0063] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0064] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle signal light, characterized by, The application relates to a light source, which comprises a rear shell, a light source substrate arranged on the rear shell, a plurality of light sources arranged on the light source substrate, and a transparent lampshade covering the light source substrate and fixed on the rear shell. The transparent lampshade and the rear shell form a containing cavity, the light source substrate and the plurality of light sources are arranged in the containing cavity, and the transparent lampshade is provided with a plurality of transparent protrusions for light diffusion on the side close to the light source substrate.

2. The vehicle signal lamp of claim 1, wherein The transparent protrusions are in the shape of triangular pyramids.

3. The vehicle signal lamp of claim 2, wherein The side close to the light source substrate of the transparent lampshade comprises a first light inlet area, a second light inlet area and a third light inlet area arranged in sequence along the length direction of the transparent lampshade, the transparent protrusions comprise first transparent protrusions, second transparent protrusions and third transparent protrusions, the first transparent protrusions are arranged in the first light inlet area, the second transparent protrusions are arranged in the second light inlet area, and the third transparent protrusions are arranged in the third light inlet area. The side of the first transparent protrusions is in the shape of a regular quadrangle with a missing corner, the bottom of the groove surrounded by three first transparent protrusions is in the shape of an equilateral triangle, the side of the second transparent protrusions is in the shape of a triangle, the bottom of the groove surrounded by three second transparent protrusions is in the shape of an equilateral triangle, the side of the third transparent protrusions is in the shape of a regular quadrangle with a missing corner, and the bottom of the groove surrounded by three third transparent protrusions is in the shape of an equilateral triangle.

4. The vehicle signal lamp of claim 3, wherein The second light inlet area is further provided with a separation strip extending along the width direction of the transparent lampshade, the separation strip is provided with a plurality of fourth transparent protrusions arranged in the width direction of the transparent lampshade, the fourth transparent protrusions are in the shape of quadrangular pyramids, and the fourth transparent protrusions have the function of light diffusion.

5. The vehicle signal lamp of claim 4, wherein The ratio of the size of the fourth transparent protrusions, the width of the separation strip and the size of the second transparent protrusions is 1:1.2-1.8:2.4-6.

6. The vehicle signaling lamp according to any one of claims 1 to 5, characterized in that The side close to the light source substrate of the transparent lampshade, the side away from the light source substrate of the transparent lampshade and the light source substrate are parallel to each other.

7. The vehicle signal lamp of claim 6, wherein The transparent lampshade has a top wall and an annular side wall, the inner side of the annular side wall is provided with a plurality of reinforcing ribs in the shape of long strip protrusions.

8. The vehicle signal lamp of claim 7, wherein The transparent lampshade further comprises a plurality of mounting portions arranged at the connection between the top wall and the annular side wall, the mounting portions are provided with mounting grooves, the mounting grooves are fixed with embedded nuts, and screws are screwed into the embedded nuts in sequence after penetrating the rear shell and the light source substrate, so that the rear shell, the light source substrate and the transparent lampshade are fixed together.

9. The vehicle signal lamp of claim 8, wherein The mounting portions are further provided with a plurality of positioning structures, and the light source substrate is provided with positioning matching structures matched with the positioning structures.

10. The vehicle signal lamp of claim 7, wherein The rear shell is further provided with an annular sealing groove surrounding the light source substrate, the annular side wall is further provided with an annular protrusion matched with the annular sealing groove, the annular sealing groove is filled with solidified glue, and when the transparent lampshade covers the light source substrate, the annular protrusion is accommodated in the annular sealing groove and is sealed and fixed after solidification of the solidified glue.

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