Lighting device

Abstract

The invention relates to the technical field of lighting equipment, and discloses a lighting device which comprises a shell, a light source assembly and a light reflecting part, the shell is provided with a mounting groove, and the mounting groove is provided with a first reflecting wall and a groove opening; the light source assembly is accommodated in the mounting groove; the reflecting part is accommodated in the mounting groove, is positioned between the light source assembly and the notch, and is separated from the first reflecting wall; and the light reflecting part and the first reflecting wall are both used for carrying out diffuse reflection on light, so that at least part of light rays emitted by the light source assembly penetrate through a gap between the first reflecting wall and the light reflecting part after being mixed in the mounting groove, and are emitted to the outside through the groove opening. In this way, the light uniformity can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of lighting equipment, and in particular, to a lighting device. Background Art

[0002] Existing lighting devices usually include a shell, a cover plate and LED lamp beads. The shell is provided with a mounting groove, the LED lamp beads are arranged in the mounting groove, and the cover plate covers the notch of the mounting groove. The cover plate is usually made of transparent material, and the shell is made of opaque material so that the light emitted by the lamp beads can be irradiated from the cover plate, thereby forming the desired lighting effect.

[0003] However, the inventors have found that in the related art, the light emitted by the lamp beads is usually distributed in a scattered manner, and the closer to the center, the higher the brightness, that is, the light distribution is uneven, resulting in poor lighting effects of the lighting device. Summary of the invention

[0004] The main technical problem solved by the embodiments of the present application is to provide a lighting device that can improve the uniformity of light.

[0005] In order to solve the above technical problems, a technical solution adopted in an embodiment of the present application is: to provide a lighting device, including a shell, a light source assembly and a reflector, the shell is provided with a mounting groove, the mounting groove has a first reflective wall and a notch; the light source assembly is accommodated in the mounting groove; the reflector is accommodated in the mounting groove, the reflector is located between the light source assembly and the notch, and the reflector and the first reflective wall are spaced apart from each other; wherein the reflector and the first reflective wall are both used to diffusely reflect light, so that at least part of the light emitted by the light source assembly is mixed in the mounting groove, passes through the gap between the first reflective wall and the reflector, and is emitted from the notch to the outside.

[0006] In some embodiments, the mounting groove has a second reflecting wall, the first reflecting wall and the second reflecting wall are opposite to each other, and the reflecting element and the second reflecting wall are spaced apart from each other, so that at least part of the light emitted by the light source assembly is mixed in the mounting groove, passes through the gap between the second reflecting wall and the reflecting element, and is emitted to the outside from the groove, and the second reflecting wall is used to diffusely reflect the light.

[0007] In some embodiments, the mounting groove has a bottom wall away from the groove opening; the first reflective wall includes a first wall surface and a first inclined surface, one end of the first wall surface is connected to the bottom wall, and one end of the first inclined surface is connected to the other end of the first wall surface, and from one end to the other end of the first inclined surface, the first inclined surface is inclined toward the side close to the reflective element.

[0008] In some embodiments, the first inclined surface is an inclined plane; or The first inclined surface is a curved surface; or The first inclined surface includes a plurality of first curved surface segments, and the plurality of first curved surface segments are sequentially connected end to end from an end of the first inclined surface contacting the first wall surface to an end away from the first wall surface.

[0009] In some embodiments, the mounting groove has a bottom wall away from the groove opening; the second reflective wall includes a second wall surface and a second inclined surface, one end of the second wall surface is connected to the bottom wall, and one end of the second inclined surface is connected to the other end of the second wall surface, and from one end to the other end of the second inclined surface, the second inclined surface is inclined toward the side close to the reflective element.

[0010] In some embodiments, the lighting device includes a light-transmitting mounting component, which is received in a mounting groove, the light-transmitting mounting component blocks the groove, and the reflective component is embedded in the light-transmitting mounting component.

[0011] In some embodiments, the light source group and the light-transmitting mounting member are spaced apart along a specified direction to form a first light-mixing groove, and the first light-mixing groove is used for mixing light.

[0012] In some embodiments, the lighting device includes a diffusion cover, which is disposed at one end of the housing and covers the slot.

[0013] In some embodiments, the diffusion cover and the light-transmitting mounting member are spaced apart along a specified direction to form a second light-mixing groove, and the second light-mixing groove is used for mixing light.

[0014] In some embodiments, a first concave surface is disposed at one end of the reflective element facing the light source assembly, and the first concave surface can diffusely reflect light.

[0015] The beneficial effect of the present application is: different from the prior art, the lighting device of the present application arranges the reflector between the light source assembly and the notch of the mounting groove, and through the diffuse reflection effect of the reflector and the first reflecting wall, at least part of the light emitted by the light source assembly is mixed in the mounting groove under the reflection effect of the first reflecting wall and the reflector, and then emitted from the notch to the outside through the light-transmitting mounting part, which is beneficial to improve the uniformity of light, reduce the brightness difference of the lighting device, and help reduce the exposure points of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1 is a schematic diagram of the structure of the lighting device provided in the embodiment of the present application when the lighting device does not include a diffusion cover; Figure 2 yes Figure 1A magnified view of the area shown in middle A; Figure 3 yes Figure 1 A magnified view of the area shown in part B; Figure 4 is a structural schematic diagram of the lighting device when the first inclined surface is a curved surface; Figure 5 is a schematic structural diagram of a lighting device provided in an embodiment of the present application including a diffusion cover; Figure 6 It is a schematic diagram of a portion of the light trajectories of the lighting device provided in an embodiment of the present application.

[0018] Description of symbols 100. Lighting devices; 1. Shell; 11. Mounting groove; 12. Notch; 13. First reflecting wall; 131. First wall surface; 132. First inclined surface; 1321. First curved surface; 14. Second reflecting wall; 141. Second wall surface; 142. Second inclined surface; 1421. Second curved surface; 15. Bottom wall; 2. Light source assembly; 21. Circuit board; 22. Lamp beads; 3. light-transmitting mounting member; 31. second inner concave surface; 4. Reflective element; 41. First inner concave surface; 5. The first light mixing slot; 6. Diffuser cover; 7. The second light mixing slot; 8. The first light avoidance space; 9. Second light avoidance space; X. Specify direction. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0021] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0022] In the related art, in order to improve the uniformity of light on the light-emitting surface of the lighting device 100 and reduce the exposure points of the light source on the light-emitting surface, one method is to extend the distance between the light source assembly 2 and the light-emitting surface so that the light emitted by the light source assembly 2 can be better mixed before being emitted from the light-emitting surface. This method is not conducive to the miniaturized design of the lighting device 100; another method is to increase the number of lamp beads, and supplement the light to the area with less light by the increased lamp beads, so as to achieve the purpose of improving the uniformity of light. In this method, a large number of lamp beads are required, resulting in high cost.

[0023] In order to at least partially solve the above-mentioned problems, the present application provides a lighting device that can improve the uniformity of the light output of the lighting device and reduce the exposure points of the light source. There is no need to extend the distance between the light source assembly and the light output surface, and there is no need to increase the number of lamp beads, which is conducive to the miniaturization design of the lighting device and reduces costs.

[0024] Among them, the lighting device 100 of the embodiment of the present application can be a device with lighting function such as a light belt, a light bar, a light pole, a floor lamp, etc.

[0025] See also Figure 1The lighting device 100 includes a housing 1, a light source assembly 2 and a reflector 4. The housing 1 is provided with a mounting groove 11. The mounting groove 11 has a first reflective wall 13, a notch 12 and a bottom wall 15. The bottom wall 15 is arranged opposite to the notch 12. One end of the first reflective wall 13 is butted against the bottom wall 15, and the other end of the first reflective wall 13 is butted against the notch 12. The light source assembly 2 is received in the mounting groove 11, and the light source assembly 2 is mounted on the bottom wall 15 of the mounting groove 11. The reflector 4 is received in the mounting groove 11, and the reflector 4 is located between the light source assembly 2 and the notch 12. The reflector 4 can diffusely reflect light, and the reflector 4 can reduce the risk of light emitted by the light source assembly 2 passing through the light-transmitting mounting member 3 and directly emitting from the notch 12 to the outside, thereby reducing the risk of excessive brightness in some areas, which is conducive to reducing the light source exposure point of the lighting device 100. The reflector 4 and the first reflective wall 13 are spaced apart from each other, so that a first light avoidance space 8 for light to pass through is formed between the reflector 4 and the first reflective wall 13. Among them, the reflector 4 and the first reflective wall 13 are both used to diffusely reflect light, so that at least part of the light emitted by the light source assembly 2 is mixed in the mounting groove 11 under the diffuse reflection action of the first reflective wall 13 and the reflector 4, and then passes through the first light avoiding space 8 between the first reflective wall 13 and the reflector 4, and is emitted to the outside from the slot 12. In this embodiment, by arranging the reflector 4 between the light source assembly 2 and the slot 12 of the mounting slot 11, through the reflection effect of the reflector 4 and the first reflection wall 13, at least part of the light emitted by the light source assembly 2 is mixed in the mounting slot 11 under the reflection effect of the first reflection wall 13 and the reflector 4, and then emitted from the slot 12 to the outside after passing through the gap between the first reflection wall 13 and the reflector 4, which is beneficial to improve the uniformity of light, reduce the exposure point of the light source, and reduce the brightness difference of the light emitting surface; in addition, by mixing the light through the reflection of the reflector 4 and the first reflection wall 13, there is no need to extend the distance between the light source assembly 2 and the light emitting surface, which is beneficial to reducing the volume of the lighting device 100, and there is no need to increase the number of light source assemblies 2, which is beneficial to reducing the cost of the lighting device 100.

[0026] It is worth noting that the gap between the first reflective wall 13 and the reflector 4 is the above-mentioned first light avoidance space 8. In some embodiments, the lighting device 100 also includes a light-transmitting mounting member 3, which is received in the mounting groove 11, the light-transmitting mounting member 3 blocks the notch 12, and the light-transmitting mounting member 3 is fixed to the first reflective wall 13, the above-mentioned reflector 4 is embedded in the light-transmitting mounting member 3, the light-transmitting mounting member 3 is used to fix the reflector 4, and light can pass through the light-transmitting mounting member 3, so that the light emitted by the light source assembly 2 can pass through the light-transmitting mounting member 3, and then be reflected by the reflector 4 and the first reflective wall 13, so as to be mixed in the mounting groove 11, and finally emitted from the notch 12 to the outside.

[0027] It is worth noting that in Figure 1In the illustrated embodiment, the light emitting surface is the surface of the light-transmitting mounting member 3 exposed to the outside.

[0028] Please note that Figure 1 The reflective member 4 is embedded in the light-transmitting mounting member 3 , that is, the reflective member 4 is accommodated and fixed in the light-transmitting mounting member 3 .

[0029] For the light source assembly 2 above, see Figure 1 The light source assembly 2 includes a circuit board 21 and a lamp bead 22. The circuit board 21 is fixed to the bottom wall 15 of the mounting groove 11. The lamp bead 22 is arranged on the surface of the circuit board 21 facing the groove 12. The circuit board 21 is used to control the light emission of the lamp bead 22, and the lamp bead 22 is used to emit light.

[0030] In some embodiments, the housing 1 and the reflective element 4 are made of white highly reflective material, such as white opaque plastic or white opaque silicone.

[0031] In some embodiments, the light-transmitting mounting member 3 is made of a material with high light transmittance, such as optical-grade transparent PC (Polycarbonate), transparent PMMA (Poly methyl methacrylate), or transparent silicone.

[0032] In some embodiments, the mounting groove 11 further has a second reflective wall 14, one end of the second reflective wall 14 is butted against the bottom wall 15 of the mounting groove 11, the other end of the second reflective wall 14 is butted against the slot 12, and the first reflective wall 13 and the second reflective wall 14 are opposite. The reflector 4 and the second reflective wall 14 are spaced apart from each other, so that a second light avoidance space 9 for light to pass through is formed between the reflector 4 and the second reflective wall 14, so that at least part of the light emitted by the light source assembly 2 can pass through the gap between the second reflective wall 14 and the reflector 4 (i.e., the second light avoidance space 9) after being mixed in the mounting groove 11, and then be emitted from the slot 12 to the outside. The reflector 4, the first reflective wall 13 and the second reflective wall 14 are all used to diffusely reflect the light, so that the light is mixed more evenly in the mounting groove 11, and then the light emitted to the outside through the slot 12 is more even, thereby further reducing the exposure point of the light source and reducing the brightness difference of the light emitting surface.

[0033] In some embodiments, the first reflective wall 13 includes a first wall surface 131 and a first inclined surface 132, one end of the first wall surface 131 is connected to the bottom wall 15 of the mounting groove 11, one end of the first inclined surface 132 is connected to the other end of the first reflective wall 13, and the other end of the first inclined surface 132 is connected to the slot 12. From the end where the first inclined surface 132 is connected to the first wall surface 131 to the end where the first inclined surface 132 is connected to the slot 12, the first inclined surface 132 is inclined toward the side close to the reflector 4, that is, the slot 12 is gradually narrowed. The first wall surface 131 and the first inclined surface 132 are both used to diffusely reflect the light, so that at least part of the light is mixed in the mounting groove 11, thereby improving the uniformity of the light. In addition, from the end where the first bevel 132 is connected to the first wall 131 to the end where the first bevel 132 is connected to the groove 12, the first bevel 132 is inclined toward the side close to the reflector 4, so that the first bevel 132 can receive more light, thereby reflecting more light, and can reduce the risk of light directly emitting from the first light avoidance space 8 between the reflector 4 and the first bevel 132 to the outside, thereby improving the uniformity of the light, reducing the exposure points of the light source, and reducing the brightness difference of the light emitting surface.

[0034] In some embodiments, not shown, the first inclined surface 132 may be an inclined plane, which can simplify the structure of the housing 1.

[0035] In some embodiments, see Figure 4 The first inclined surface 132 may be a curved surface. This configuration can increase the area of ​​the first inclined surface 132 receiving light, so that the first inclined surface 132 can reflect more light, which is beneficial to improving the uniformity of the light.

[0036] In some embodiments, see Figure 2 The first inclined surface 132 includes a plurality of first curved surfaces 1321, and the first curved surfaces 1321 are connected end to end in sequence from the end where the first inclined surface 132 is connected to the first wall surface 131 to the end away from the first wall surface 131. Compared with setting the first inclined surface 132 as a straight inclined surface, by setting a plurality of first curved surfaces 1321, the area of ​​the first inclined surface 132 receiving light can be further increased, so that the first inclined surface 132 can reflect more light, which is conducive to further improving the uniformity of light and reducing the light source exposure points on the light emitting surface.

[0037] In some embodiments, see Figure 1The second reflective wall 14 includes a second wall surface 141 and a second inclined surface 142. One end of the second wall surface 141 is connected to the bottom wall 15 of the mounting groove 11, and one end of the second inclined surface 142 is connected to the other end of the second reflective wall 14. The first wall surface 131 is opposite to the second wall surface 141, and the first inclined surface 132 is opposite to the second inclined surface 142. From the end where the second inclined surface 142 is connected to the second wall surface 141 to the end where the second inclined surface 142 is connected to the slot 12, the second inclined surface 142 is inclined toward the side close to the reflector 4, that is, the slot 12 is gradually narrowed. The second wall surface 141 and the second inclined surface 142 are both used to diffusely reflect the light, so that at least part of the light is mixed in the mounting groove 11, thereby improving the uniformity of the light. In addition, from the end where the second bevel 142 is connected to the second wall 141 to the end where the second bevel 142 is connected to the groove 12, the second bevel 142 is inclined toward the side close to the reflector 4, so that the second bevel 142 can receive more light, thereby reflecting more light, and can reduce the risk of light directly emitting from the second light avoidance space 9 between the reflector 4 and the second bevel 142 to the outside, thereby further improving the uniformity of the light, reducing the exposure points of the light source, and narrowing the brightness difference of the light emitting surface.

[0038] In some embodiments, not shown, the second inclined surface 142 may be an inclined plane, which can simplify the structure of the housing 1.

[0039] In some embodiments, see Figure 4 The second inclined surface 142 may be a curved surface. This configuration can increase the area of ​​the second inclined surface 142 receiving light, so that the second inclined surface 142 can reflect more light, which is beneficial to improving the uniformity of the light.

[0040] In some embodiments, see Figure 2 The second inclined surface 142 includes a plurality of second curved surfaces 1421, and the second curved surfaces 1421 are connected end to end in sequence from the end where the second inclined surface 142 is connected to the second wall surface 141 to the end away from the second wall surface 141. Compared with setting the second inclined surface 142 as a straight inclined surface, by setting a plurality of second curved surfaces 1421, it is beneficial to further increase the area of ​​the second inclined surface 142 receiving light, so that the second inclined surface 142 can reflect more light, which is beneficial to further improve the uniformity of light and reduce the light source exposure points on the light emitting surface.

[0041] In some embodiments, see Figure 1, along the specified direction X, the lamp bead 22 and the light-transmitting mounting member 3 are spaced apart from each other, so that a first light-mixing groove 5 is formed between the light-transmitting mounting member 3 and the light source assembly 2, and at least part of the light emitted by the lamp bead 22 can be mixed in the first light-mixing groove 5, and then after being refracted by the light-transmitting mounting member 3, and reflected by the first reflecting wall 13, the second reflecting wall 14 and the reflector 4, the light is further mixed and emitted from the slot 12 to the outside, wherein, taking the lighting device of the embodiment of the present application as a light strip as an example, the specified direction X can be the direction in which the length of the light strip extends. Exemplarily, the specified direction X can be a direction parallel to the direction of the slot 12. In this embodiment, by forming a first light-mixing groove 5 between the light source assembly 2 and the light-transmitting mounting member 3, the light can be mixed in the first light-mixing groove 5, which is beneficial to improving the uniformity of the light, further reducing the exposure point of the light source, and reducing the brightness difference of the light-emitting surface.

[0042] In some embodiments, see Figure 1 The end of the light-transmitting mounting member 3 facing the light source assembly 2 is provided with a second inner concave surface 31, the second inner concave surface 31 is recessed in a direction away from the light source assembly 2, and in the specified direction X, the projection of the lamp bead 22 is accommodated in the second inner concave surface 31. In this embodiment, the light-transmitting mounting member 3 can refract light, and by providing the second inner concave surface 31, the direction of the light can be adjusted to make the light in the mounting groove 11 more uniform.

[0043] In some embodiments, the second inner concave surface 31 is substantially spherical, which helps to make the light in the mounting slot 11 more uniform.

[0044] In some embodiments, see Figure 5 , the reflector 4 is provided with a first concave surface 41 at one end facing the light source assembly 2, and in the specified direction X, the projection of the lamp bead 22 is contained in the first concave surface 41. In this embodiment, by providing the first concave surface 41, the reflection area of ​​the reflector 4 to the light can be increased, which is conducive to improving the uniformity of the light. It is worth noting that the reflector 4 is made of silicone. During the processing, the silicone material needs to be injected into the mold. After molding, the reflector 4 needs to be extruded from the mold. By providing the first concave surface 41, the reflector 4 can be easily extruded, making the reflector 4 easier to process.

[0045] In some embodiments, the first inner concave surface 41 is substantially spherical, which helps to make the light in the mounting slot 11 more uniform.

[0046] Understandably, see Figure 1 The surface of the reflector 4 facing the light source assembly 2 can be a plane.

[0047] In some embodiments, not shown in the figure, the surface of the reflector 4 facing the light source assembly 2 may also be provided with a convex surface or a flat surface, and the surface of the convex surface or the flat surface is used to diffusely reflect the light, so that after the light is diffusely reflected by the convex surface or the flat surface, the light is more uniform, which is beneficial to improve the uniformity of the light on the light-emitting surface and reduce the exposure points of the light source.

[0048] Furthermore, when the surface of the reflector 4 is set to be a convex surface, the convex surface is roughly spherical, which is beneficial to further improve the uniformity of light.

[0049] In some embodiments, see Figure 5 The lighting device 100 also includes a diffusion cover 6, which is arranged at one end of the shell 1 and covers the notch 12 of the mounting groove 11. The diffusion cover 6 is used to diffuse light, which is beneficial to increase the uniformity of light, reduce the exposure point of the light source, and reduce the brightness difference of the light emitting surface.

[0050] It is worth noting that in Figure 5 In the illustrated embodiment, the light emitting surface is the surface of the diffusion cover 6 facing away from the housing 1 .

[0051] In some embodiments, see Figure 5 Along the specified direction X, the diffusion cover 6 and the light-transmitting mounting member 3 are spaced apart so that a second light-mixing groove 7 is formed between the diffusion cover 6 and the light-transmitting mounting member 3. The second light-mixing groove 7 is used for mixing light, thereby further improving the uniformity of light, reducing light source exposure points, and narrowing the brightness difference of the light-emitting surface.

[0052] In order to enable users to better understand the concept of the present application, the movement trajectory of part of the light of the lighting device 100 provided in the present application is described below.

[0053] Please refer to Figure 6, a, b, c, d represent the movement trajectories of four different light rays respectively. Part of the light a emitted by the lamp bead 22 is refracted to the first wall surface 131 through the light-transmitting mounting member 3. The first wall surface 131 reflects the light, so that the light passes through the curved surface of the reflector 4 away from the lamp bead 22 and is reflected again. Then, after being refracted through the light-transmitting mounting member 3, the light enters the second light-mixing groove 7 to mix with other light rays, and then is diffused through the diffuser 6 and emitted to the outside. Part of the light b emitted by the lamp bead 22 is refracted through the light-transmitting mounting member 3 and irradiates the surface of the reflector 4 facing the lamp bead 22. The reflector 4 reflects the light b, and then part of the light b is totally reflected when passing through the boundary of the light-transmitting mounting member 3. The totally reflected light passes through the first wall surface 131 and is reflected to the surface of the reflector 4 away from the lamp bead 22. Then, after being refracted through the light-transmitting mounting member 3, the light enters the second light-mixing groove 7, and finally is diffused through the diffuser 6 and emitted to the outside. Part of the light c is refracted by the light-transmitting mounting part 3 to the surface of the reflective member 4 facing the lamp bead 22. The reflective member 4 reflects the light and irradiates it through the light-transmitting mounting part 3 to the circuit board 21 at the bottom of the mounting groove 11. The circuit board 21 reflects the light and irradiates it through the light-transmitting mounting part 3 to the first wall 131. The first wall 131 reflects the light and enters the second light-mixing groove 7 through the light-transmitting mounting part 3. Finally, it is diffused by the diffuser 6 and emitted to the outside. Part of the light d is refracted by the light-transmitting mounting part 3 and irradiates to the first inclined surface 132. The first inclined surface 132 reflects the light and refracts it through the light-transmitting mounting part 3 to the surface of the reflective member 4 facing away from the lamp bead 22. The reflective member 4 reflects the light and enters the second light-mixing groove 7 through the light-transmitting mounting part 3. Finally, it is diffused by the diffuser 6 and emitted to the outside. It should be noted that please refer to Figure 6 The lighting device 100 is roughly symmetrically arranged on the left and right. Therefore, regarding the trajectory of part of the light on the right side, you can refer to the above-mentioned a, b, c, d trajectories, which are symmetrical to the right side, that is, the trajectory of part of the light on the right side, which will not be described in detail here.

[0054] In the embodiment of the present application, the reflector 4 is arranged between the light source assembly 2 and the slot 12 of the mounting slot 11, and through the diffuse reflection effect of the reflector 4 and the first reflecting wall 13, at least part of the light emitted by the light source assembly 2 is mixed in the mounting slot 11 under the reflection and scattering effect of the first reflecting wall 13 and the reflector 4, and then emitted from the slot 12 to the outside through the light-transmitting mounting member 3, which is beneficial to improving the uniformity of the light and reducing the brightness difference of the light-emitting surface; in addition, by mixing the light through reflection by the reflector 4 and the first reflecting wall 13, there is no need to extend the distance between the light source assembly 2 and the light-emitting surface, which is beneficial to reducing the volume of the lighting device 100, and there is no need to increase the number of light source assemblies 2, which is beneficial to reducing the cost of the lighting device 100.

[0055] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A lighting device, characterized in that: include: The housing is provided with a mounting groove, wherein the mounting groove has a first reflecting wall and a notch; A light source assembly is received in the mounting groove; A reflector, received in the mounting groove, the reflector is located between the light source assembly and the notch, and the reflector and the first reflective wall are spaced apart from each other; Wherein, the reflector and the first reflective wall are both used to diffusely reflect light, so that at least part of the light emitted by the light source assembly is mixed in the installation groove, passes through the gap between the first reflective wall and the reflector, and is emitted to the outside from the groove.

2. The lighting device according to claim 1, characterized in that: The mounting groove has a second reflecting wall, the first reflecting wall and the second reflecting wall are opposite to each other, and the reflecting element and the second reflecting wall are spaced apart from each other, so that at least part of the light emitted by the light source assembly is mixed in the mounting groove, passes through the gap between the second reflecting wall and the reflecting element, and is emitted to the outside from the groove, and the second reflecting wall is used to diffusely reflect the light.

3. The lighting device according to claim 1, characterized in that: The mounting slot has a bottom wall away from the slot opening; The first reflecting wall includes a first wall surface and a first inclined surface, one end of the first wall surface is connected to the bottom wall, and one end of the first inclined surface is connected to the other end of the first wall surface. From one end to the other end of the first inclined surface, the first inclined surface is inclined toward the side close to the reflective element.

4. The lighting device according to claim 3, characterized in that: The first inclined surface is an inclined plane; or The first inclined surface is a curved surface; or The first inclined surface includes a plurality of first curved surface segments, and the plurality of first curved surface segments are sequentially connected end to end from an end of the first inclined surface contacting the first wall surface to an end away from the first wall surface.

5. The lighting device according to claim 2, characterized in that: The mounting slot has a bottom wall away from the slot opening; The second reflecting wall includes a second wall surface and a second inclined surface, one end of the second wall surface is connected to the bottom wall, and one end of the second inclined surface is connected to the other end of the second wall surface. From one end to the other end of the second inclined surface, the second inclined surface is inclined toward the side close to the reflective element.

6. The lighting device according to claim 1, characterized in that: The lighting device comprises a light-transmitting mounting member, the light-transmitting mounting member is received in the mounting groove, the light-transmitting mounting member blocks the groove opening, and the reflective member is embedded in the light-transmitting mounting member.

7. The lighting device according to claim 6, characterized in that: The light source group and the light-transmitting mounting member are spaced apart along a specified direction to form a first light-mixing groove, and the first light-mixing groove is used for mixing light.

8. The lighting device according to claim 6, characterized in that: The lighting device comprises a diffusion cover, which is arranged at one end of the shell and covers the notch.

9. The lighting device according to claim 8, characterized in that: The diffusion cover and the light-transmitting mounting member are spaced apart along a specified direction to form a second light-mixing groove, and the second light-mixing groove is used for mixing light.

10. The lighting device according to any one of claims 1 to 9, characterized in that: The reflector is provided with a first concave surface at one end facing the light source assembly, and the first concave surface is used for diffusely reflecting light; or The reflector is provided with a convex surface at one end facing the light source assembly, and the surface of the convex surface is used for diffusely reflecting light; or A plane is disposed at one end of the reflector facing the light source assembly, and the surface of the plane is used for diffusely reflecting light.

Images