Ultrathin ceiling lamp

Abstract

The utility model relates to the technical field of lighting equipment, in particular to an ultrathin ceiling lamp which comprises a cover plate, a transparent cover, a base plate assembly, a first light source, a second light source and a third light source. A mounting groove is formed in the cover plate; the transparent cover is fixed to the outer edge of the cover plate in a surrounding mode. The chassis assembly is fixedly connected with the transparent cover through the outer frame; the light emitting direction of the first light source faces the transparent cover; the light emitting direction of the second light source faces the inner side of the mounting groove; the light emitting direction of the third light source faces the inner frame. According to the ultrathin ceiling lamp provided by the utility model, the overall thickness of the ceiling lamp is reduced; the first light source, the second light source and the third light source can be independently controlled, multiple illumination modes are achieved, the second light source forms face type light emitting, and the light source has the advantages of being soft in emitted light, free of hurting eyes and large in illumination. And the first light source and the third light source can realize linear light emitting, and have the advantages of uniform lines and fine light emitting.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting equipment, in particular to an ultra-thin ceiling lamp. Background Art

[0002] Ceiling lights are a type of lighting fixtures. As the name implies, they are called ceiling lights because the top of the lamp is relatively flat and the bottom is completely attached to the roof when installed. They are widely used in home decoration. However, the requirements for the size of ceiling lights are getting higher and higher. The thinner the ceiling lights are, the more popular they are among consumers. However, the existing ceiling lights are generally thicker and have a larger distance from the ceiling.

[0003] A common method for ultra-thin ceiling lamps is to reduce the overall thickness of the ceiling lamps by installing side-emitting light sources. However, due to the characteristics of the side-emitting light sources, the light-emitting areas of ceiling lamps in the prior art are mostly planar structures. They have the advantages of soft light, no harm to the eyes, and high illumination, but their lighting methods are single and cannot meet the lighting needs of existing consumers. Therefore, how to enrich the lighting methods while ensuring that the thickness of the ceiling lamp is relatively thin to meet the lighting needs of consumers in various application environments. Utility Model Content

[0004] The utility model provides an ultra-thin ceiling lamp, which is used to solve the defect of single lighting mode of ceiling lamps using side-emitting light sources in the prior art, and adopts a line-surface combined lighting mode to meet consumers' lighting needs for various application environments.

[0005] The utility model provides an ultra-thin ceiling lamp, comprising:

[0006] A cover plate, wherein the cover plate is formed with a mounting groove;

[0007] A transparent cover, the transparent cover is fixed around the outer edge of the cover plate;

[0008] A chassis assembly, wherein the chassis assembly is fixedly connected to the transparent cover via an outer frame;

[0009] A first light source, the first light source is disposed on the transparent cover, and a light emitting direction is toward the transparent cover;

[0010] A second light source, the second light source is fixed in the mounting groove through an inner frame, and the light emitting direction is toward the inner side of the mounting groove, and a light guide plate and a diffuser plate are arranged in the light emitting direction of the second light source;

[0011] A third light source is fixed on the cover plate and is located outside the inner frame, with a light emitting direction toward the inner frame, and an optical medium is formed between the third light source and the inner frame.

[0012] Optionally, the transparent cover is a first groove-shaped structure formed by sequentially connecting a first side panel, a first bottom panel and a second side panel, and the first light source is overlapped on the first side panel and the second side panel and embedded in an open end of the first groove-shaped structure.

[0013] Optionally, it also includes: a diffusion cover, which is a second groove-shaped structure formed by connecting a third side plate, a second bottom plate and a fourth side plate in sequence, and the second groove-shaped structure is suitable for being embedded in the first groove-shaped structure and is located on the propagation light path between the first light source and the transparent cover.

[0014] Optionally, the plane where the first light source is located is parallel to the first bottom plate and the second bottom plate, and the light emitting direction of the first light source is perpendicular to the plane where the first bottom plate and the second bottom plate are located.

[0015] Optionally, it also includes: reflective paper, wherein the reflective paper is arranged on the side of the light guide plate opposite to the diffusion plate.

[0016] Optionally, it also includes: a pressing plate, which is pressed between the reflective paper and the chassis assembly; the pressing plate, the reflective paper, the light guide plate and the diffusion plate are all arranged in parallel, and the second light source is arranged on the outside of the light guide plate, and the light output direction is parallel to the plane where the light guide plate is located.

[0017] Optionally, the end of the inner frame is connected to the chassis assembly, and the chassis assembly is at least partially exposed through the mounting groove, and the third light source is provided with a silicone strip on a side close to the inner frame, and the light emitting direction of the third light source is perpendicular to the outer wall surface of the inner frame.

[0018] Optionally, it also includes: a hanging plate assembly, which is detachably connected to the chassis assembly.

[0019] Optionally, a first fastener is formed on the hanging plate assembly, and a second fastener is provided on the chassis assembly, and the second fastener is suitable for plugging and matching with the first fastener.

[0020] Optionally, the first light source, the second light source and the third light source respectively include light strips composed of a plurality of lamp beads arranged along their extension directions.

[0021] The utility model provides an ultra-thin ceiling lamp, which comprises: a cover plate, a transparent cover, a chassis assembly, a first light source, a second light source and a third light source; the cover plate is formed with a mounting groove; the transparent cover is arranged and fixed at the outer edge of the cover plate; the chassis assembly is fixedly connected to the transparent cover through an outer frame; the first light source is arranged on the transparent cover, and the light emitting direction is toward the transparent cover; the second light source is fixed in the mounting groove through an inner frame, and the light emitting direction is toward the inner side of the mounting groove, and a light guide plate and a diffusion plate are arranged in the light emitting direction of the second light source; the third light source is fixed on the cover plate and is located on the outer side of the inner frame, and the light emitting direction is toward the inner frame, and an optical medium is formed between the third light source and the inner frame. The utility model provides an ultra-thin ceiling lamp. Since the second light source and the third light source are both side light sources, the overall thickness of the ceiling lamp is reduced, thereby forming an ultra-thin ceiling lamp. In addition, since the first light source, the second light source and the third light source are independent light sources, they can be controlled individually, thereby realizing a variety of lighting modes. Among them, the second light source forms a surface light emission due to the presence of a light guide plate and a diffusion plate on its light path, and it has the advantages of soft light emission, no harm to the eyes and high illumination. The first light source and the third light source can realize linear light emission according to the arrangement of their lamp beads (for example: light strips), and it has the advantages of uniform lines and delicate light emission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of an ultra-thin ceiling lamp provided in one embodiment of the utility model from a first viewing angle;

[0024] Figure 2 It is a schematic diagram of the overall structure of the ultra-thin ceiling lamp provided in one embodiment of the utility model from a second viewing angle;

[0025] Figure 3 It is a schematic diagram of the relative positions of the first light source, the second light source and the third light source provided in one embodiment of the utility model;

[0026] Figure 4 is a cross-sectional schematic diagram of an ultra-thin ceiling lamp provided in one embodiment of the utility model;

[0027] Figure 5 It is a partial structural schematic diagram of a first light source part provided in one embodiment of the utility model;

[0028] Figure 6It is a partial structural schematic diagram of a second light source part provided in one embodiment of the utility model;

[0029] Figure 7 It is a partial structural schematic diagram of a third light source part provided in one embodiment of the utility model;

[0030] Figure 8 It is a partial structural schematic diagram of a hanging plate assembly and a chassis assembly provided in one embodiment of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of a cover plate provided in one embodiment of the utility model;

[0032] Fig.10 It is a structural schematic diagram of a hanging plate assembly provided in one embodiment of the utility model;

[0033] Fig.11 It is a structural schematic diagram of a chassis assembly provided in one embodiment of the utility model.

[0034] Reference numerals:

[0035] 1: Cover plate; 2: Transparent cover; 3: Diffuser cover; 4: First light source; 5: Outer frame; 6: Silicone strip; 7: Third light source; 8: Inner frame; 9: Second light source; 10: Diffuser plate; 11: Light guide plate; 12: Reflective paper; 13: Chassis assembly; 14: Screws; 15: Hanging plate assembly; 16: Pressing plate; 17: Mounting slot; 18: First fastener; 19: Second fastener. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of this embodiment clearer, the technical solution of this utility model will be described clearly and completely in conjunction with the drawings in this utility model. Obviously, the described embodiment is a part of the embodiment of this utility model, not all the embodiments. Based on the embodiment of this utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this utility model.

[0037] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model 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 limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] Combine the following Figure 1-Figure 11The ultra-thin ceiling lamp of this embodiment is described, and includes: a cover plate 1, a transparent cover 2, a chassis assembly 13, a first light source 4, a second light source 9, a third light source 7, and a control module.

[0042] Among them, the cover plate 1 is formed with a mounting groove 17; the transparent cover 2 is arranged and fixed at the outer edge of the cover plate 1; the chassis assembly 13 is fixedly connected to the transparent cover 2 through the outer frame 5; the first light source 4 is arranged on the transparent cover 2, and the light emitting direction is toward the transparent cover 2; the second light source 9 is fixed in the mounting groove 17 through the inner frame 8, and the light emitting direction is toward the inner side of the mounting groove 17, and a light guide plate 11 and a diffuser plate 10 are arranged in the light emitting direction of the second light source 9; the third light source 7 is fixed on the cover plate 1 and is located on the outer side of the inner frame 8, and the light emitting direction is toward the inner frame 8, and an optical medium is formed between the third light source 7 and the inner frame 8.

[0043] The present embodiment provides an ultra-thin ceiling lamp, which includes: a cover plate 1, a transparent cover 2, a chassis assembly 13, a first light source 4, a second light source 9, a third light source 7, an inner frame 8 and an outer frame 5, etc.; the cover plate 1, the chassis assembly 13, the inner frame 8, the outer frame 5 and the transparent cover 2, etc. form an external supporting structure of the ceiling lamp, which can be fastened by screws 14 and / or connected in a snap-fit ​​manner. The inner frame 8 is fixed inside the mounting groove 17 formed on the cover plate 1, and the second light source 9 is fixed inside the ceiling lamp through the inner frame 8, and its light emitting direction is toward the inner side of the mounting groove 17, that is, the second light source 9 is a side-emitting form, that is, its light-emitting surface is sideways relative to the plane where the ceiling lamp is located (that is, parallel to the plane where the ceiling lamp is located). Similarly, the third light source 7 also adopts a side-emitting form; in contrast, the first light source 4 adopts a straight downward light-emitting form, that is, its light-emitting surface is vertically arranged relative to the plane where the ceiling lamp is located. It should be understood that the light emission directions of the first light source 4, the second light source 9 and the third light source 7 described above can be fine-tuned according to actual conditions, and a parallel or vertical arrangement is preferred.

[0044] Regarding the illumination of the first light source 4, the first light source 4 is arranged straight downward, and its light-emitting surface is illuminated at a straight downward angle through the transparent cover 2. According to the form of the first light source 4, it can realize a linear illumination mode; Regarding the illumination of the second light source 9, since the second light source 9 is side-mounted, in order to ensure its illumination effect, a light guide plate 11 and a diffuser plate 10 are sequentially arranged in the propagation direction of its light path, and the light is refracted by the light guide plate 11 to change the propagation direction of the light path, and the diffuser plate 10 is used to diffuse the light evenly, thereby realizing the effect of side-mounted light source and surface illumination; Regarding the illumination of the third light source 7, the light emitting direction of the third light source 7 is toward the inner frame 8, that is, the third light source 7 is also side-mounted. The difference between it and the second light source 9 is that only an optical medium for light propagation is arranged in the propagation direction of its light path, and the light emitting direction of its side emission can be unchanged, and even light diffusion is not performed, and only side emission is performed toward the inner frame 8. According to the form of the third light source 7, it can realize a linear illumination mode.

[0045] The first light source 4, the second light source 9 and the third light source 7 can be in the form of a light strip, that is, the three light sources respectively include a light strip composed of a plurality of lamp beads arranged along the extension direction thereof. The control module is electrically connected to the first light source 4, the second light source 9 and the third light source 7 respectively, and the working mode of the first light source 4, the second light source 9 and the third light source 7 can be controlled by the control module, and the corresponding light source can be controlled to be turned on or off.

[0046] Since the second light source 9 and the third light source 7 are both side light sources and do not occupy the thickness of the ceiling lamp, the overall thickness of the ceiling lamp is reduced, thereby forming an ultra-thin ceiling lamp; in addition, because the first light source 4, the second light source 9 and the third light source 7 are independent light sources, they can be controlled individually, realizing a variety of lighting methods, among which the second light source 9 forms a surface light emission due to the presence of the light guide plate 11 and the diffuser plate 10 in its light path; and the first light source 4 and the third light source 7 can realize linear light emission according to the arrangement of their lamp beads (for example: light strip). In addition, the mounting groove 17 in this embodiment is a hollow structure, so that the light guide plate 11 is exposed from the mounting groove 17, which can also further reduce the overall thickness of the ceiling lamp. According to the thickness measurement of the actual product, its thickness is only 36mm.

[0047] The utility model provides an ultra-thin ceiling lamp, which comprises: a cover plate 1, a transparent cover 2, a chassis assembly 13, a first light source 4, a second light source 9 and a third light source 7; the cover plate 1 is formed with a mounting groove 17; the transparent cover 2 is fixedly arranged at the outer edge of the cover plate 1; the chassis assembly 13 is fixedly connected to the transparent cover 2 through an outer frame 5; the first light source 4 is arranged on the transparent cover 2, and the light emitting direction is toward the transparent cover 2; the second light source 9 is fixed in the mounting groove 17 through an inner frame 8, and the light emitting direction is toward the inner side of the mounting groove 17, and a light guide plate 11 and a diffusion plate 10 are arranged in the light emitting direction of the second light source 9; the third light source 7 is fixed on the cover plate 1, and is located on the outer side of the inner frame 8, and the light emitting direction is toward the inner frame 8, and an optical medium is formed between the third light source 7 and the inner frame 8. The utility model provides an ultra-thin ceiling lamp. Since the second light source 9 and the third light source 7 are both side light sources, the overall thickness of the ceiling lamp is reduced, thereby forming an ultra-thin ceiling lamp. In addition, since the first light source 4, the second light source 9 and the third light source 7 are independent light sources, they can be controlled individually to achieve a variety of lighting methods. Among them, the second light source 9 forms a surface light emission due to the presence of the light guide plate 11 and the diffuser plate 10 on its light path, which has the advantages of soft light, no harm to the eyes and high illumination. The first light source 4 and the third light source 7 can achieve linear light emission according to the arrangement of their lamp beads (for example: light strips), which has the advantages of uniform lines and delicate light emission.

[0048] In one embodiment, the transparent cover 2 is a first groove-shaped structure formed by sequentially connecting a first side panel, a first bottom panel, and a second side panel, and the first light source 4 is overlapped on the first side panel and the second side panel, and is embedded in the open end of the first groove-shaped structure. In this embodiment, the transparent cover 2 is a U-shaped groove-shaped structure, which is composed of two side panels and a bottom panel, and the first light source 4 is installed between the two side panels. Since both the side panels and the bottom panel are light-transmissive, the first light source 4 can emit light through the first side panel, the second side panel, and the first bottom panel, which realizes light emission from three sides and improves the lighting range.

[0049] In one embodiment, the ultra-thin ceiling lamp further includes: a diffusion cover 3, which is a second groove-shaped structure formed by sequentially connecting a third side panel, a second bottom panel, and a fourth side panel, and the second groove-shaped structure is suitable for being embedded in the first groove-shaped structure, and is located on the propagation light path between the first light source 4 and the transparent cover 2. In this embodiment, the diffusion cover 3 also adopts a U-shaped groove-shaped structure, which can be adapted to be embedded in the inner side of the transparent cover 2, and when the first light source 4 irradiates the diffusion cover 3, it is evenly diffused so that it can irradiate the first side panel, the second side panel, and the first bottom panel of the transparent cover 2.

[0050] In one embodiment, the plane where the first light source 4 is located is parallel to the first bottom plate and the second bottom plate, and the light emitting direction of the first light source 4 is perpendicular to the plane where the first bottom plate and the second bottom plate are located. In this embodiment, the first light source 4 directly irradiates the first bottom plate and the second bottom plate downward, and the light intensity irradiated by the first bottom plate is the largest; and because the first light source 4 is not directly irradiated with the first side plate and the second side plate, the light intensity irradiated by the first side plate and the second side plate is relatively weak. Through the above arrangement, the first light source 4 forms a lighting method with linear direct irradiation as the main and side irradiation as the auxiliary.

[0051] In one embodiment, the ultra-thin ceiling lamp further includes: reflective paper, which is arranged on the side of the light guide plate 11 opposite to the diffuser plate 10. In this embodiment, by arranging the reflective paper 12, the reflective paper 12 can adjust the outgoing beam angle through its good reflection performance of light, so as to ensure that the light is emitted from one side of the diffuser plate 10.

[0052] In one embodiment, the ultra-thin ceiling lamp further includes: a pressing plate 16, which is pressed between the reflective paper and the chassis assembly 13. In this embodiment, by setting the pressing plate 16 below the chassis assembly 13, the reflective paper 12, the light guide plate 11 and the diffuser plate 10 are pressed and set between the chassis assembly 13 and the cover plate 1 in sequence, ensuring that there is no gap between them to avoid light leakage. Preferably, the pressing plate 16 can be a panel made of ethylene-vinyl acetate copolymer material (full name: Ethylene VinylAcetate; abbreviated: EVA).

[0053] In one embodiment, the pressing plate 16, the reflective paper, the light guide plate 11 and the diffusion plate 10 are all arranged in parallel, the second light source 9 is arranged on the outside of the light guide plate 11, and the light emitting direction is parallel to the plane where the light guide plate 11 is located. In this embodiment, the second light source 9 is side-mounted, arranged on the outer edge of the light guide plate 11, and irradiates horizontally toward the light guide plate 11. The light enters from the outer wall of the light guide plate 11, and the light is diffused to form a surface-type emitted light through the high refractive index and non-light-absorbing characteristics of the light guide plate 11. In addition, because the second light source 9 irradiates in parallel with the light guide plate 11, it reduces the overall thickness of the ceiling lamp. Of course, according to the actual irradiation needs, the second light source 9 can also be placed at an appropriate angle. In this embodiment, it is preferably arranged vertically on the outside of the light guide plate 11, and the height of the second light source 9 is less than or equal to the thickness of the light guide plate 11. Such an arrangement ensures that the second light source 9 does not exceed the thickness of the light guide plate 11, and can minimize the overall thickness of the ceiling lamp.

[0054] In one of the embodiments, the end of the inner frame 8 is connected to the chassis assembly 13, and the chassis assembly 13 is at least partially exposed through the mounting groove 17. The third light source 7 is provided with a silicone strip 6 on the side close to the inner frame 8, and the light emitting direction of the third light source 7 is perpendicular to the outer wall surface of the inner frame 8. In this embodiment, since the third light source 7 is arranged laterally, and the emitted light is also emitted laterally, the third light source 7 is arranged vertically between the cover plate 1 and the chassis assembly 13, which reduces the overall thickness of the ceiling lamp. The silicone strip 6 can encapsulate the third light source 7 inside the ceiling lamp on the one hand, and can also play a role in even light diffusion on the other hand. In this embodiment, the third light source 7 irradiates toward the outer wall surface of the inner frame 8, and its emitted light is side-emitting, and the light is evenly diffused by the silicone strip 6, and the light irradiates the concave surface formed by the chassis assembly 13 and the inner frame 8. The light intensity is weak, and it can be used as an atmosphere lamp or a night light.

[0055] In one embodiment, the ultra-thin ceiling lamp further includes: a hanging plate assembly 15, and the hanging plate assembly 15 is detachably connected to the chassis assembly 13. The hanging plate assembly 15 can be pre-installed and fixed to the ceiling, and then the chassis assembly 13 is installed on the hanging plate assembly 15, so as to achieve the installation of the lamp. In this embodiment, the hanging plate assembly 15 and the chassis assembly 13 are detachably connected to facilitate installation and disassembly. Preferably, the hanging plate assembly 15 has a mounting hole, and the hanging plate assembly 15 is fixed to the ceiling by fasteners such as screws 14 or expansion bolts passing through the mounting hole.

[0056] In one embodiment, a first fastener 18 is formed on the hanging plate assembly 15, and a second fastener 19 is provided on the chassis assembly 13, and the second fastener 19 is suitable for plugging and matching with the first fastener 18. In this embodiment, the plug-in matching mode of the first fastener 18 and the second fastener 19 is adopted to achieve the quick connection installation of the hanging plate assembly 15 and the chassis assembly 13. Specifically, the first fastener 18 is in the form of a tongue, and the second fastener 19 is in the form of a slot. During the assembly process, an external force is applied to the chassis assembly 13 so that the tongue is pressed into the slot, and the chassis assembly 13 is installed in place.

[0057] In one embodiment, the first light source 4, the second light source 9 and the third light source 7 respectively include a light strip composed of a plurality of lamp beads arranged along the extension direction thereof, preferably a light strip composed of LED lamp beads. Therefore, the first light source 4 irradiates through the transparent cover 2 to form a linear lighting mode; the second light source 9 forms a surface lighting mode due to the presence of the light guide plate 11 and the diffuser plate 10; the third light source 7 forms a linear lighting mode, thereby realizing a lighting mode combining line and surface, and a controller can be used to control the opening and closing of the first light source 4, the second light source 9 and the third light source 7, thereby realizing the switching of multiple lighting modes.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An ultra-thin ceiling lamp, characterized in that: include: A cover plate (1), wherein the cover plate (1) is formed with a mounting groove (17); A transparent cover (2), the transparent cover (2) being arranged and fixed around the outer edge of the cover plate (1); A chassis assembly (13), wherein the chassis assembly (13) is fixedly connected to the transparent cover (2) via an outer frame (5); a first light source (4), the first light source (4) being arranged on the transparent cover (2) and emitting light in a direction toward the transparent cover (2); a second light source (9), the second light source (9) being fixed in the mounting groove (17) via an inner frame (8), with a light emitting direction facing the inner side of the mounting groove (17), and a light guide plate (11) and a diffusion plate (10) being arranged in the light emitting direction of the second light source (9); A third light source (7), the third light source (7) being fixed on the cover plate (1) and being located outside the inner frame (8), with the light emitting direction being towards the inner frame (8), and an optical medium being formed between the third light source (7) and the inner frame (8).

2. The ultra-thin ceiling lamp according to claim 1, characterized in that: The transparent cover (2) is a first groove-shaped structure formed by sequentially connecting a first side plate, a first bottom plate and a second side plate; the first light source (4) is overlapped on the first side plate and the second side plate and embedded in the open end of the first groove-shaped structure.

3. The ultra-thin ceiling lamp according to claim 2, characterized in that: Also includes: A diffusion cover (3), wherein the diffusion cover (3) is a second groove-shaped structure formed by sequentially connecting a third side plate, a second bottom plate and a fourth side plate, wherein the second groove-shaped structure is suitable for being embedded in the first groove-shaped structure and is located on a propagation light path between the first light source (4) and the transparent cover (2).

4. The ultra-thin ceiling lamp according to claim 3, characterized in that: The plane where the first light source (4) is located is parallel to the first bottom plate and the second bottom plate, and the light emitting direction of the first light source (4) is perpendicular to the plane where the first bottom plate and the second bottom plate are located.

5. The ultra-thin ceiling lamp according to claim 1, characterized in that: Also includes: Reflective paper, the reflective paper being arranged on the side of the light guide plate (11) opposite to the diffusion plate (10).

6. The ultra-thin ceiling lamp according to claim 5, characterized in that: Also includes: A pressing plate (16), the pressing plate (16) is pressed between the reflective paper and the chassis assembly (13); the pressing plate (16), the reflective paper, the light guide plate (11) and the diffuser plate (10) are all arranged in parallel, the second light source (9) is arranged on the outside of the light guide plate (11), and the light emitting direction is parallel to the plane where the light guide plate (11) is located.

7. The ultra-thin ceiling lamp according to claim 1, characterized in that: The end of the inner frame (8) is connected to the chassis assembly (13), and the chassis assembly (13) is at least partially exposed through the mounting groove (17); the third light source (7) is provided with a silicone strip (6) on a side close to the inner frame (8); and the light emitting direction of the third light source (7) is perpendicular to the outer wall surface of the inner frame (8).

8. The ultra-thin ceiling lamp according to claim 1, characterized in that: Also includes: A hanging plate assembly (15), wherein the hanging plate assembly (15) is detachably connected to the chassis assembly (13).

9. The ultra-thin ceiling lamp according to claim 8, characterized in that: The hanging plate assembly (15) is formed with a first fastener (18), and the chassis assembly (13) is provided with a second fastener (19), wherein the second fastener (19) is suitable for plugging and matching with the first fastener (18).

10. The ultra-thin ceiling lamp according to any one of claims 1 to 9, characterized in that: The first light source (4), the second light source (9) and the third light source (7) respectively comprise light strips composed of a plurality of light beads arranged along their extension direction.

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