Lamp

Abstract

The invention provides a lamp which comprises a face ring and a light-transmitting plate, and a containing cavity is formed between the face ring and the light-transmitting plate. The lamp further comprises a light source assembly, a light guide plate, a shading ring and a first reflecting part, the light source assembly is arranged along the inner side wall of the face ring, and the light-emitting face of the light source assembly deviates from the inner side wall. The light guide plate is arranged on one side of the light source assembly with the light-emitting surface; the shading ring is arranged between the light guide plate and the light transmitting plate, and the distance between the outer edge of the shading ring and the inner side wall is smaller than the distance between the light emitting face and the inner side wall. The first reflecting part is arranged between the shading ring and the light guide plate and is used for reflecting the received light to the light guide plate; the shading ring blocks light rays of the light guide plate near the inner side wall, so that light leakage at the inner side wall of the surface ring is reduced, and the lighting quality of the lamp is improved; the first light reflecting part can reflect the light rays at the light shielding part, so that the light ray uniformity in the lamp and the illumination quality of the lamp are improved.

Description

Technical Field

[0001] This application belongs to the field of lighting technology, and particularly relates to a lighting fixture. Background Art

[0002] In narrow-bezel lighting fixtures, the light source is usually arranged on the inner side wall of the lighting fixture, and then cooperates with a light guide structure to achieve the light output and illumination of the lighting fixture. This is beneficial to the miniaturization and narrow-bezel design of the lighting fixture.

[0003] However, in the related art, due to the small size of the bezel of the narrow-bezel lighting fixture, the bezel blocks less light inside the lighting fixture, so light leakage is likely to occur, and even poor phenomena such as "piano spots" are likely to occur. Summary of the Invention

[0004] The purpose of this application is to provide a lighting fixture, aiming to solve the problem of poor illumination caused by light leakage in the lighting fixture in the traditional technology.

[0005] In the first aspect of the embodiments of this application, a lighting fixture is proposed. The lighting fixture includes a face ring and a light-transmitting plate. The light-transmitting plate covers the face ring, and a receiving cavity is formed between the face ring and the light-transmitting plate. The lighting fixture further includes:

[0006] A light source assembly, arranged in the receiving cavity, and the light source assembly is arranged along the inner side wall of the face ring, and the light-emitting surface of the light source assembly faces away from the inner side wall;

[0007] A light guide plate, arranged in the receiving cavity and arranged on the side of the light source assembly where the light-emitting surface is located; the light guide plate is used to guide the light in the lighting fixture to the light-transmitting plate;

[0008] A light-shielding ring, arranged between the light guide plate and the light-transmitting plate, and the distance between the outer edge of the light-shielding ring and the inner side wall is less than the distance between the light-emitting surface and the inner side wall;

[0009] A first reflector, arranged between the light-shielding ring and the light guide plate, and the first reflector is used to reflect the received light to the light guide plate.

[0010] In some embodiments of this application, a second reflector is arranged on the side of the light guide plate facing away from the light-transmitting plate, and the second reflector is used to guide the light from the light source assembly and the first reflector to the light-transmitting plate.

[0011] In some embodiments of this application, the first reflector is annular, the first reflector is attached to the light-shielding ring, and the distance between the outer edge of the first reflector and the inner side wall is less than the distance between the light-emitting surface and the inner side wall.

[0012] In some embodiments of the present application, the covering area of the first reflecting member on the light-shielding ring is at least 1 / 3 of the area of the light-shielding ring.

[0013] In some embodiments of the present application, the light-transmitting plate has a light-emitting surface disposed away from the light-shielding ring, and the ratio a of the ring width to the light-shielding height of the light-shielding ring satisfies: 0.8 ≤ a ≤ 1.2; the light-shielding height is equal to the distance between the light-shielding ring and the light-emitting surface.

[0014] In some embodiments of the present application, the light-shielding ring is attached to the non-light-emitting surface of the light source assembly.

[0015] In some embodiments of the present application, the light-transmitting plate includes: a light-transmitting portion and a surrounding wall surrounding the light-transmitting portion, and a protruding portion is provided on the surrounding wall, and the protruding portion is used to abut against the light-shielding ring when the light-transmitting plate is assembled with the face ring.

[0016] In some embodiments of the present application, the number of the protruding portions is multiple, and the multiple protruding portions are spaced apart.

[0017] In some embodiments of the present application, the light-transmitting plate includes: a light-transmitting portion and a surrounding wall surrounding the light-transmitting portion, a card slot is provided in the face ring, and a buckle adapted to the card slot is provided on the surrounding wall.

[0018] In some embodiments of the present application, the lamp further includes a driving device, and the driving device is connected to the light source assembly through a conductive structure; the face ring has a bottom wall, the driving device is fixed to the bottom wall and partially or completely covers the hollow area of the bottom wall, and a groove is provided on the inner side of the bottom wall, and the conductive structure is disposed in the groove.

[0019] In some embodiments of the present application, a welding portion is provided on the light source assembly, and the welding portion extends toward the surrounding center of the light source assembly, and the welding portion is used to weld and fix the light source assembly to the bottom wall.

[0020] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows: In the above-mentioned lamp, the lamp includes a face ring and a light-transmitting plate. The light-transmitting plate is covered on the face ring, and a receiving cavity is formed between the face ring and the light-transmitting plate. The lamp further includes a light source assembly, a light guide plate, a light-shielding ring, and a first reflector. The light source assembly is arranged in the receiving cavity, and the light source assembly is arranged along the inner side wall of the face ring, and the light-emitting surface of the light source assembly faces away from the inner side wall. The light guide plate is arranged in the receiving cavity and is arranged on the side of the light source assembly where the light-emitting surface is provided. The light guide plate is used to guide the light in the lamp to the light-transmitting plate. The light-shielding ring is arranged between the light guide plate and the light-transmitting plate, and the distance between the outer edge of the light-shielding ring and the inner side wall is less than the distance between the light-emitting surface and the inner side wall. The first reflector is arranged between the light-shielding ring and the light guide plate, and the first reflector is used to reflect the received light to the light guide plate. In this application, the light-shielding ring blocks the light near the inner side wall of the light guide plate to reduce the light leakage at the inner side wall of the face ring, which is beneficial to improving the lighting quality of the lamp. And the first reflector can reflect the light at the light-shielding member to improve the light uniformity inside the lamp, which is also beneficial to improving the lighting quality of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a lamp provided by an embodiment of the present application;

[0022] Figure 2 provided by an embodiment of the present application Figure 1 is a schematic cross-sectional structural diagram taken along the A-A direction;

[0023] Figure 3 provided by an embodiment of the present application Figure 2 is a schematic enlarged structural diagram of a partial A;

[0024] Figure 4 is an exploded structural diagram of a lamp provided by an embodiment of the present application;

[0025] Figure 5 is a schematic optical path diagram of a lamp provided by an embodiment of the present application;

[0026] Figure 6 is a schematic structural diagram of a light-transmitting plate provided by an embodiment of the present application;

[0027] Figure 7 is a schematic structural diagram of a lamp provided by another embodiment of the present application.

[0028] Specific element symbol descriptions: 10 - accommodating cavity, 100 - driving device, 110 - main driving board, 120 - auxiliary driving board, 200 - face ring, 210 - groove, 300 - light-transmitting plate, 310 - light-transmitting part, 320 - surrounding wall, 321 - protruding part, 322 - buckle, 323 - notch, 400 - light guide plate, 500 - light source assembly, 510 - light-emitting surface, 520 - double-sided adhesive structure, 530 - welding part, 600 - first reflector, 700 - light-shielding ring, 800 - second reflector. Specific implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 should not be construed as a limitation to the present application.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0033] It should be known that in the field of lighting fixtures, with the continuous improvement of consumers' requirements for the aesthetics and lighting effects of fixtures, fixtures have gradually gained market favor due to their simple and fashionable appearance designs. Currently, some fixtures have switched to a narrow frame structure, which can achieve a thinner and lighter appearance, and have a higher degree of integration with the surrounding environment after installation, meeting the aesthetic requirements of modern interior decoration for fixtures.

[0034] In the related art, narrow - bezel lamps have serious light - leakage problems. In such lamps, the light source is located on the side of the lamp, and the light is evenly distributed through a light - guide plate and a diffuser plate. However, due to the light - propagation characteristics, at the edge part of the lamp, the light is prone to uncontrolled lateral leakage. When the lamp bezel becomes narrower or even designed as a borderless bezel, the light - leakage phenomenon becomes more serious, resulting in an obvious "piano - spot" phenomenon on the light - emitting surface of the lamp. The "piano - spot" is manifested as uneven bright and dark patches on the light - emitting surface, greatly affecting the lighting effect and visual experience of the lamp, making the lamp unable to meet the usage requirements in places with high requirements for lighting uniformity, such as museums, art galleries, high - end commercial spaces, etc.

[0035] Therefore, such lamps still need to be designed with a bezel of sufficient width to block the light. However, this approach not only increases the overall size and weight of the lamp, destroying the original intention of the lamp's thin, light, and beautiful design, but also cannot fundamentally solve the light - leakage problem. In addition, the light - leakage problem may also lead to energy waste and reduce the light efficiency of the lamp.

[0036] This application has improved the related lamps based on this.

[0037] Please refer to Figures 1 to 3 , Figure 1 which shows the structural schematic diagram of the lamp provided in this embodiment, Figure 2 shows the Figure 2 A - A cross - sectional structural schematic diagram of this embodiment, Figure 3 shows the Figure 2 magnified structural schematic diagram of the partial structure A of this embodiment. The lamp of this embodiment includes a face ring 200 and a light - transmissive plate 300. The light - transmissive plate 300 is covered on the face ring 200, and an accommodating cavity 10 is formed between the face ring 200 and the light - transmissive plate 300.

[0038] In the lamp of this application, the face ring 200 is an annular structure that can play a role in supporting and fixing other components; the light - transmissive plate 300 is made of a light - transmissive or semi - light - transmissive material, and its main function is to block the line of sight of the internal structure of the lamp while allowing the illumination light inside the lamp to pass through to play a lighting role. The accommodating cavity 10 can be used to accommodate other components inside the lamp and can play a protective role for other components.

[0039] The lamp of the embodiment of the present application further includes a light source assembly 500, a light guide plate 400, a light shielding ring 700, and a first reflector 600. The light source assembly 500 is disposed in the accommodation cavity 10, the light source assembly 500 is disposed along the inner side wall of the surface ring 200, and the light emitting surface 510 of the light source assembly 500 faces away from the inner side wall; the light guide plate 400 is disposed in the accommodation cavity 10 and is disposed on the side of the light source assembly 500 where the light emitting surface 510 is provided, and the light guide plate 400 is used to direct the light in the lamp to the light transmissive plate 300; the light shielding ring 700 is disposed between the light guide plate 400 and the light transmissive plate 300, and the distance between the outer edge of the light shielding ring 700 and the inner side wall is less than the distance between the light emitting surface 510 and the inner side wall; the first reflector 600 is disposed between the light shielding ring 700 and the light guide plate 400, and the first reflector 600 is used to reflect the received light to the light guide plate 400.

[0040] It should be noted that the light source assembly 500 is a component in the lamp that provides light, and a light emitting element (such as an LED lamp bead) is disposed thereon. The light guide plate 400 can change the propagation direction of light and make the light more evenly distributed. The light source assembly 500 in the embodiment of the present application can be disposed around and attached to the inner side wall of the surface ring 200. The main function of the light shielding ring 700 is to block light, and the light passes through the light guide plate 400 and then irradiates from the inner ring of the light shielding ring 700 to the light transmissive plate 300. The first reflector 600 can reflect some of the light emitted by the light source assembly 500 into the light guide plate 400, thereby improving the utilization rate and uniformity of light.

[0041] It can be understood that in the embodiment of the present application, the light shielding ring 700 is disposed between the light source assembly 500 and the light transmissive plate 300 and close to the inner wall of the surface ring 200, which can effectively block the light emitted by the light source assembly 500 to the edge of the surface ring 200, is beneficial to avoiding light leakage from the edge of the surface ring 200, thereby reducing light leakage problems such as "piano spots", which is beneficial to improving the uniformity and visual effect of the lamp illumination, making the light output of the lamp softer and more natural, and further beneficial to improving the lighting quality. And the first reflector 600 reflects some of the light emitted by the light source assembly 500, so that this part of the light that may have been blocked or wasted originally may irradiate to the light transmissive plate 300 along the light guide plate 400, increasing the amount of light reaching the light transmissive plate 300, improving the optical efficiency of the lamp, and achieving a brighter lighting effect at the same power, reducing energy consumption. After the light acts on these components, the distribution of the light on the light transmissive plate 300 is more uniform, avoiding local over-bright or over-dark situations, and providing a more comfortable lighting environment.

[0042] In some embodiments, the first reflector 600 is a reflective paper.

[0043] In some embodiments of the present application, please continue to refer to FIG. 3 and refer to Figure 4 and Figure 5 ,Figure 4 The exploded structural schematic diagram of the lamp provided in this embodiment is shown, Figure 5 and the optical path diagram of the lamp provided in this embodiment is shown. On the side of the light guide plate 400 facing away from the light transmissive plate 300, a second reflector 800 is provided, and the second reflector 800 is used to direct the light from the light source assembly 500 and the first reflector 600 towards the light transmissive plate 300.

[0044] It can be understood that the second reflector 800 in the embodiment of the present application can reflect the light passing through the light guide plate 400 and the light of the light source assembly 500. The reflection effect of the second reflector 800 can reflect the light that should originally be emitted from the side of the light guide plate 400 facing away from the light transmissive plate 300 back into the light guide plate 400 and emit it along the light transmissive plate 300, thereby increasing the total amount of light at the light transmissive plate 300 and further facilitating the improvement of the optical efficiency.

[0045] Specifically, as Figure 5 shown, a path of light emitted from the light emitting surface 510 of the light source assembly 500 enters the light guide plate 400 and is incident on the first reflector 600. The light after being reflected by the first reflector 600 enters the light guide plate 400 and is directed towards the second reflector 800. After the light is incident on the second reflector 800, it is reflected back into the light guide plate 400 and finally is directed by the light guide plate 400 towards the light transmissive plate 300. Another path of light emitted from the light emitting surface 510 of the light source assembly 500 enters the light guide plate 400 and is incident on the second reflector 800. The light after being reflected by the second reflector 800 enters the light guide plate 400 and finally is directed by the light guide plate 400 towards the light transmissive plate 300.

[0046] In some embodiments, the second reflector 800 is a reflective paper.

[0047] In some embodiments, the light source assembly 500 is an FPC (Flexible Printed Circuit) light source assembly 500.

[0048] In some embodiments, the light source assembly 500 is adhered to the inner wall of the face ring 200 through a double-sided adhesive structure 520.

[0049] In some embodiments, the light emitting elements on the light source assembly 500 are encapsulated in 2835 (length * width is 2.8 mm * 3.5 mm). In the related art, in order to reduce the appearance of piano spots, a smaller package size (such as 3014, length * width is 3.0 mm * 1.4 mm) is usually required. However, in the embodiment of the present application, the appearance of piano spots can be reduced through the light shielding ring 700 and the first reflector 600. Therefore, a larger size of lamp bead package can be selected, which is beneficial to reducing the number of lamp beads and further reducing the cost.

[0050] In some embodiments of the present application, please continue to refer to Figure 3 In this embodiment, the first light reflector 600 is annular, the first light reflector 600 is attached to the light shielding ring 700, and the distance between the outer edge and the inner side wall of the first light reflector 600 is less than the distance between the light emitting surface 510 and the inner side wall.

[0051] It should be noted that the outer edge of the first light reflector 600 refers to the outer ring edge of the first light reflector 600.

[0052] It can be understood that by setting the distance between the outer edge and the inner side wall of the first light reflector 600 to be less than the distance between the light emitting surface 510 and the inner side wall, the first light reflector 600 can reflect the light emitted from the light emitting surface 510 towards the inner side wall, which is beneficial to improving the optical efficiency and reducing the light leakage at the inner side wall of the surface ring 200.

[0053] In some embodiments, the first light reflector 600 can be adhered to the light shielding ring 700; or the first light reflector 600 can be pressed against the light shielding ring 700 through the light guide plate 400.

[0054] In some embodiments of the present application, please continue to refer to Figure 3 A junction region is formed between the light source assembly 500 and the light guide plate 400 in this embodiment, and the first light reflector 600 shields the junction region.

[0055] It should be noted that the junction region refers to a partial region where the light source assembly 500 and the light guide plate 400 are close to and connected to each other.

[0056] It can be understood that the first light reflector 600 shields the junction region, and can reflect the light that may leak or scatter at the junction of the light source assembly 500 and the light guide plate 400 back into the light guide plate 400. If this part of the light is not reflected, it may be lost inside the lamp or cause local light non-uniformity.

[0057] In some embodiments of the present application, please continue to refer to Figure 3 In this embodiment, the light transmissive plate 300 has a light emitting surface disposed away from the light shielding ring 700, and the ratio a of the ring width L1 to the light shielding height H1 of the light shielding ring 700 satisfies: 0.8 ≤ a ≤ 1.2; the light shielding height is equal to the distance between the light shielding ring 700 and the light emitting surface.

[0058] It should be noted that the ring width of the light shielding ring 700 refers to the distance from the inner edge to the outer edge of the light shielding ring 700.

[0059] It can be understood that when the ratio a of the ring width to the light-shielding height of the light-shielding ring 700 satisfies 0.8 ≤ a ≤ 1.2, it can ensure that while the light-shielding ring 700 effectively blocks the side leakage light, no dark area will appear at the edge of the lamp due to unreasonable light-shielding area and height. And if the ring width is too large or the distance from the light-emitting surface is too close, although the light-shielding effect is enhanced, too much light will be blocked, reducing the optical efficiency; on the contrary, the light-shielding effect cannot be guaranteed.

[0060] In some embodiments, the ring width L1 of the light-shielding ring 700 is greater than 2 mm. This is beneficial to ensuring the light-shielding effect of the light-shielding ring 700.

[0061] In some embodiments, the distance H1 from the light-shielding ring 700 to the light-emitting surface is greater than 2 mm, which is beneficial to ensuring the optical effect of the lamp.

[0062] In some embodiments, the maximum outer diameter of the light-transmitting plate 300 is not less than the maximum outer diameter of the light-shielding ring 700, and the orthographic projection of the light-shielding ring 700 on the light-transmitting plate 300 falls within the light-transmitting plate 300.

[0063] In some embodiments of the present application, please continue to refer to Figure 3 , in this embodiment, the coverage area of the first reflector 600 on the light-shielding ring 700 is at least 1 / 3 of the area of the light-shielding ring 700.

[0064] It can be understood that the coverage area of the first reflector 600 on the light-shielding ring 700 is at least 1 / 3 of the area of the light-shielding ring 700, which ensures that the first reflector 600 can cover a relatively large proportion of the area on the light-shielding ring 700. In this way, when the light propagates to the vicinity of the light-shielding ring 700, more light that may leak will be reflected by the first reflector 600, reducing the light leakage from the periphery of the light-shielding ring 700. At the same time, it also improves the secondary utilization efficiency of the light blocked by the light-shielding ring 700, further enhancing the light-shielding effect of the lamp, reducing light leakage phenomena such as "piano spots", and improving the lighting quality.

[0065] In some embodiments of the present application, please continue to refer to Figure 3 , in this embodiment, the light-shielding ring 700 is attached to the non-light-emitting surface 510 of the light source assembly 500.

[0066] It can be understood that the light-shielding ring 700 is attached to the non-light-emitting surface 510 of the light source assembly 500, which can effectively block the light leakage at the light-emitting surface 510 of the light source assembly 500. Because the light at the light-emitting surface 510 of the light source assembly 500 is likely to scatter uncontrollably towards the inner side wall, and the tight fitting of the light-shielding ring 700 can block these possible leakage lights, reducing light leakage phenomena such as "piano spots", making the lighting area of the lamp more uniform, and improving the lighting quality.

[0067] In some embodiments of the present application, please refer toFigure 6 , Figure 6 shows a schematic structural diagram of the light-transmitting plate 300 provided in this embodiment; the light-transmitting plate 300 of this embodiment includes a light-transmitting portion 310 and a surrounding wall 320 disposed around the light-transmitting portion 310; a protruding portion 321 is provided on the surrounding wall 320, and the protruding portion 321 is used to abut against the light-shielding ring 700 when the light-transmitting plate 300 is assembled with the face ring 200.

[0068] It can be understood that during the assembly process, the operator can more accurately install the light-transmitting plate 300 onto the face ring 200 according to the abutting situation between the protruding portion 321 and the light-shielding ring 700, reducing the assembly error, improving the overall assembly accuracy of the lamp, ensuring the accurate relative positions of the components of the lamp, and thus enhancing the stability and reliability of the lamp. And the protruding portion 321 abuts against the light-shielding ring 700, which can further seal the gap between the two. When the lamp is working, this can effectively block the light that may leak between the light-shielding ring 700 and the light-transmitting plate 300, avoiding the light leakage phenomenon and reducing the occurrence of "piano spots".

[0069] In some embodiments of the present application, please continue to refer to Figure 6 , the number of the protruding portions 321 in this embodiment is multiple, and the multiple protruding portions 321 are arranged at intervals.

[0070] It can be understood that compared with a single protruding portion 321, the multiple protruding portions 321 can more effectively disperse the stress during assembly, prevent the light-transmitting plate 300 from tilting or displacing during the assembly process, make the assembly of the light-transmitting plate 300 and the face ring 200 more stable, ensure the stability of the overall structure of the lamp, and reduce the loosening or damage of components caused by insecure assembly. Since the multiple protruding portions 321 are arranged at intervals, after they abut against the light-shielding ring 700, they can more evenly seal the gap between the two in the entire circumferential direction of the light-shielding ring 700. This effectively blocks the light from leaking between the light-shielding ring 700 and the light-transmitting plate 300, avoiding the concentrated occurrence of the light leakage phenomenon in some local areas, and is beneficial to improving the lighting quality of the lamp.

[0071] In some embodiments, the multiple protruding portions 321 are evenly spaced along the circumferential direction of the light-transmitting plate 300. Since the multiple protruding portions 321 are evenly spaced, after they abut against the light-shielding ring 700, they can more evenly seal the gap between the two in the entire circumferential direction of the light-shielding ring 700. This effectively blocks the light from leaking between the light-shielding ring 700 and the light-transmitting plate 300, avoiding the concentrated occurrence of the light leakage phenomenon in some local areas, and is beneficial to improving the lighting quality of the lamp.

[0072] In some embodiments, the protruding portion 321 has a protruding surface facing away from the light-transmitting plate 300, and the protruding surface is a curved surface.

[0073] In some embodiments of the present application, please continue to refer toFigure 6 , a clamping groove is provided inside the surface ring 200 of this embodiment, and a buckle 322 adapted to the clamping groove is provided on the surrounding wall 320. In this way, the buckle 322 on the surrounding wall 320 can be engaged with the clamping groove on the surface ring 200 to realize the assembly of the surface ring 200 and the light-transmitting plate 300.

[0074] In some embodiments, a notch 323 is provided on the surrounding wall 320, the buckle 322 is arranged in the notch 323, the buckle 322 is connected to the bottom wall of the notch 323, and the buckle 322 is spaced from the side wall of the notch 323.

[0075] It can be understood that when installing the light-transmitting plate 300, the buckle 322 can be easily buckled with corresponding components such as the surface ring 200. Since the buckle 322 is spaced from the side wall of the notch 323, the buckle 322 has a certain cantilever elasticity and can adapt to dimensional deviations within a certain range during assembly, which is beneficial to reducing the assembly difficulty, improving the production efficiency, and reducing product damage caused by difficult assembly.

[0076] In some embodiments of the present application, please continue to refer to Figure 2 and refer to Figure 7 , Figure 7 shows a schematic structural diagram of the lamp provided in this embodiment. The lamp of this embodiment further includes a driving device 100, and the driving device 100 is connected to the light source assembly 500 through a conductive structure; the surface ring 200 has a bottom wall, the driving device 100 is fixed to the bottom wall and partially or completely covers the hollowed area of the bottom wall, and a groove 210 is provided on the inner side of the bottom wall, and the conductive structure is arranged in the groove 210.

[0077] It can be understood that the conductive structure is arranged in the groove 210, and the groove 210 can play a certain protective role for the conductive structure. During the assembly and use of the lamp, the groove 210 can prevent the conductive structure from being damaged by external force extrusion, friction, etc., prolong the service life of the conductive structure, ensure the stable and reliable electrical connection between the driving device 100 and the light source assembly 500, avoid lamp failures caused by damage to the conductive structure, and improve the stability and reliability of the lamp.

[0078] In some embodiments, the driving device 100 includes a driving housing, a main driving board 110 and an auxiliary driving board 120. The main driving board 110 and the auxiliary driving board 120 are both arranged in the driving housing and are electrically connected to the light source assembly 500.

[0079] In some embodiments, the main driving board 110 and the auxiliary driving board 120 are connected by terminals or power lines, and a dip switch is provided on the auxiliary driving board 120 for realizing switching control of functions such as power and color temperature.

[0080] In some embodiments of the present application, please continue to refer toFigure 7 In this embodiment, a welding portion 530 is provided on the light source assembly 500. The welding portion 530 extends towards the circumferential center of the light source assembly 500 and is used to weld and fix the light source assembly 500 to the bottom wall.

[0081] It can be understood that the welding portion 530 extends towards the circumferential center of the light source assembly 500, which facilitates welding it to the bottom wall. After the welding portion 530 is welded to the bottom wall, the light source assembly 500 and the face ring 200 can be fixed.

[0082] Furthermore, in order to better implement the lamps in any of the above embodiments, based on the above lamps, the embodiment of the present application further provides an illumination device, including the above lamps.

[0083] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to the present application. Such modifications, improvements, and corrections are proposed in the present application, so such modifications, improvements, and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0085] At the same time, the present application uses specific terms to describe the embodiments of the present application. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the present application can be appropriately combined.

[0086] Similarly, it should be noted that, in order to simplify the expression of the present application disclosure and thus help the understanding of one or more invention embodiments, in the previous description of the embodiments of the present application, sometimes multiple features are merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the object of the present application are more than those mentioned in the claims. In fact, the features of the embodiment are less than all the features of the single embodiment disclosed above.

[0087] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A lighting fixture, characterized in that, The lamp includes a face ring and a light-transmitting plate. The light-transmitting plate covers the face ring, and a receiving cavity is formed between the face ring and the light-transmitting plate. The lamp further includes: a light source assembly disposed in the receiving cavity. The light source assembly is disposed along the inner sidewall of the face ring, and the light-emitting surface of the light source assembly faces away from the inner sidewall. a light guide plate disposed in the receiving cavity and on a side of the light source assembly where the light-emitting surface is located. The light guide plate is configured to guide the light in the lamp to the light-transmitting plate. a light-shielding ring disposed between the light guide plate and the light-transmitting plate, and the distance between the outer edge of the light-shielding ring and the inner sidewall is less than the distance between the light-emitting surface and the inner sidewall. a first reflector disposed between the light-shielding ring and the light guide plate. The first reflector is configured to reflect the received light to the light guide plate.

2. The luminaire according to claim 1, wherein, A second reflector is disposed on a side of the light guide plate facing away from the light-transmitting plate. The second reflector is configured to guide the light from the light source assembly and the first reflector to the light-transmitting plate.

3. The luminaire according to claim 1, characterized in that, The first reflector is annular, the first reflector is attached to the light-shielding ring, and the distance between the outer edge of the first reflector and the inner sidewall is less than the distance between the light-emitting surface and the inner sidewall.

4. The luminaire according to claim 3, characterized in that, The coverage area of the first reflector on the light-shielding ring is at least 1 / 3 of the area of the light-shielding ring.

5. The luminaire according to any one of claims 1 to 4, characterized in that The light-transmitting plate has a light-emitting surface disposed away from the light-shielding ring. The ratio a of the ring width to the light-shielding height of the light-shielding ring satisfies: 0.8 ≤ a ≤ 1.2; the light-shielding height is equal to the distance between the light-shielding ring and the light-emitting surface.

6. The luminaire according to any one of claims 1 to 4, characterized in that, The light-shielding ring is attached to the non-light-emitting surface of the light source assembly.

7. The luminaire according to any one of claims 1 to 4, characterized in that, The light-transmitting plate includes a light-transmitting portion and a surrounding wall surrounding the light-transmitting portion. A protruding portion is disposed on the surrounding wall. The protruding portion is configured to abut against the light-shielding ring when the light-transmitting plate is assembled with the face ring.

8. The luminaire according to claim 7, characterized in that, The number of the protruding portions is multiple, and the multiple protruding portions are spaced apart.

9. The luminaire according to any one of claims 1 to 4, characterized in that, The light-transmitting plate includes a light-transmitting portion and a surrounding wall surrounding the light-transmitting portion. A clamping groove is disposed in the face ring, and the surrounding wall is provided with a clamping buckle adapted to the clamping groove.

10. The luminaire according to any one of claims 1 to 4, characterized in that, The lamp further includes a driving device. The driving device is connected to the light source assembly through a conductive structure. The face ring has a bottom wall. The driving device is fixed to the bottom wall and partially or completely shields the hollowed area of the bottom wall. A groove is disposed on the inner side of the bottom wall, and the conductive structure is disposed in the groove.

11. The luminaire according to claim 10, characterized in that, A welding portion is disposed on the light source assembly and extends towards the surrounding center of the light source assembly. The welding portion is configured to weld and fix the light source assembly to the bottom wall.

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