A lighting fixture

Abstract

The application discloses a lighting lamp, comprising a panel lamp and a mounting accessory, the panel lamp comprises a lamp shell, a diffuser and an LED light source, the lamp shell is provided with a plurality of mounting portions on the outer side, the LED light source is mounted on the inner side of the lamp shell, the LED light source emits light to the diffuser, the mounting portion comprises a mounting groove and a plurality of mounting rib structures, the mounting groove is arranged on the straight side wall of the lamp shell, and the plurality of mounting rib structures are arranged on the top wall of the lamp shell; the mounting accessory comprises a first accessory and a second accessory, the first accessory is detachably connected to the mounting groove in one-to-one correspondence, the plurality of mounting rib structures are detachably connected with the second accessory in one-to-one correspondence, and the first accessory and the second accessory can be selectively used. When a plurality of panel lamps are assembled to fixed mounting portions to form a surface light emitting illumination system, a certain panel lamp in the surface light emitting illumination system can be individually disassembled without disassembling other panel lamps. The technical scheme is applied to the purpose of making the assembly mode of the panel lamp diverse and improving the maintenance efficiency of the panel lamp with faults in the surface light emitting illumination system through the improvement of the mounting structure.

Description

Technical Field

[0001] This application belongs to the field of lighting equipment technology, and in particular relates to a lighting fixture. Background Technology

[0002] Panel lights can be installed in several ways, including hanging, recessed, and integrated into the ceiling. Currently, only one of these installation methods can be used on a single panel light. Individual panel lights on the market need to be customized to suit different usage scenarios, which can affect the performance of the lights.

[0003] Furthermore, when using commercially available panel lights to assemble a surface-emitting lighting system, if one panel light malfunctions, workers must disassemble all adjacent panel lights sequentially from the outside in until the faulty light is reached for repair. After repair, the disassembled panel lights must be reinstalled one by one in the correct order. Clearly, repairing faulty panel lights in a surface-emitting lighting system is labor-intensive and inefficient. Utility Model Content

[0004] The purpose of this application is to provide a lighting fixture that aims to diversify the assembly methods of panel lights and improve the maintenance efficiency of panel lights that fail in a panel light-emitting lighting system through improvements in the installation structure.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a lighting fixture, including a panel light and mounting accessories. The panel light includes a lamp housing, a diffuser, and an LED light source. Multiple mounting portions are provided on the outer side of the lamp housing. The diffuser and the lamp housing cover are combined to form an accommodating space. The LED light source is installed on the inner side of the lamp housing and located within the accommodating space. The LED light source emits light towards the diffuser and transmits light through the diffuser. The lamp housing has a top wall and two opposing straight side walls. The mounting portions include mounting grooves and multiple mounting rib structures. The mounting grooves are located on the side of the straight side walls away from the accommodating space, and the multiple mounting rib structures are located on the side of the top wall away from the accommodating space. The mounting accessories include a first accessory and a second accessory. The two straight side walls are connected to the first accessory in a one-to-one correspondence. The first accessory is detachably connected to the mounting groove. The multiple mounting rib structures are detachably connected to the second accessory in a one-to-one correspondence. The first accessory and the second accessory can be selected to install a single panel light to a fixed mounting portion for illumination, or to assemble multiple panel lights to a fixed mounting portion to form a surface-emitting lighting system. Furthermore, a certain panel light in the surface-emitting lighting system can be individually disassembled without disassembling other panel lights.

[0006] In some embodiments, the first accessory includes a first connecting plate and a second connecting plate that are bent and connected together. The first connecting plate is snapped into the mounting groove, and the second connecting plate is used to install to the fixed mounting part.

[0007] In some embodiments, the wall of the mounting groove is provided with a limiting protrusion, which limits the mounting of the first connecting plate to prevent the first connecting plate from coming out of the mounting groove.

[0008] In some embodiments, the second accessory includes a spring clip member and a mounting rail assembly. The spring clip member has a connecting end and two clips connected to the connecting end. The connecting end is detachably connected to the mounting rib structure. The mounting rail assembly is used to mount to the fixed mounting portion, and the two clips are clamped and mounted on the mounting rail assembly.

[0009] In some embodiments, the mounting portion includes four mounting rib structures, which are respectively located at the four corners of the top wall near the four ends of the two straight sidewalls, and the mounting rail assembly includes at least two parallel first type rails.

[0010] In some embodiments, the second accessory further includes a hanger and a tension member. The first rail is suspended to the fixed mounting part by a plurality of hangers. In two adjacent panel lights of the surface-emitting lighting system, the first end of the tension member is connected to the top wall of one of the panel lights, the second end of the tension member is formed with a hook, and the top wall of the other panel light is provided with a protrusion, the hook being hooked onto the protrusion.

[0011] In some embodiments, the mounting portion includes four mounting rib structures, the top wall has two first edge regions corresponding to two straight sidewalls and two second edge regions located between and opposite to the two straight sidewalls, wherein two mounting rib structures are respectively located at the middle position of the two first edge regions, and two other mounting rib structures are respectively located at the middle position of the two second edge regions, and the mounting rail assembly includes a plurality of second type rails and a plurality of third type rails, the second type rails and the third type rails being arranged perpendicularly to form at least one cross node, and the panel light covering one cross node.

[0012] In some embodiments, the mounting part includes four mounting rib structures, which are respectively located at the four corners of the top wall near the four ends of the two straight side walls. The second accessory includes an adapter, a magnetic connector, and a rail. The adapter is detachably connected to the mounting rib structure, the magnetic connector is detachably connected to the adapter, the rail is used to install to the fixed mounting part, and the magnetic connector is magnetically fixed to the rail.

[0013] In some embodiments, the diffuser has a light-emitting panel and a circumferential sidewall connected to the circumferential edge of the light-emitting panel. Along the direction from the lamp housing to the diffuser, the outer surface of the circumferential sidewall is inclined toward the receiving space. In a surface-emitting lighting system, when the lamp housings of two adjacent panel lamps are in close contact, there is a gap between two adjacent diffusers.

[0014] In some embodiments, the LED light source includes a substrate and multiple LED groups mounted on the substrate. The substrate is mounted on a top wall, and the multiple LED groups face the light-emitting panel. The multiple LED groups are arranged in an array along the longitudinal and transverse directions on the substrate. Each LED group includes a cool white LED and a warm white LED. In the multiple columns of LED groups along the longitudinal direction, the cool white LEDs and warm white LEDs in the LED groups located at both ends of each column are arranged laterally, and the cool white LEDs and warm white LEDs in the remaining LED groups are arranged longitudinally.

[0015] This application has at least the following beneficial effects: The lighting fixture provided by the embodiments of this application allows the panel light to be installed onto a fixed mounting part at the lighting site using mounting accessories. The mounting accessories include a first accessory and a second accessory. The lamp housing of the panel light has a mounting part composed of a mounting groove and multiple mounting ribs. The mounting groove is adapted to the first accessory, and the multiple mounting ribs are adapted to the second accessory. When installing the lighting fixture at the lighting site, either the first accessory or the second accessory can be selected. Thus, the lighting fixture provided by the embodiments of this application integrates multiple installation methods on a single panel light, allowing for adaptation and selection according to the assembly requirements of the lighting site. This diversifies the assembly methods of the panel light, enabling flexible assembly and improving installation efficiency. Furthermore, this lighting fixture assembles multiple panel lights into a fixed mounting section to form a surface-emitting lighting system, thus creating a larger illumination area. Multiple panel lights are installed using a first component in conjunction with a mounting slot or a second component in conjunction with multiple mounting ribs. This allows a single panel light in the surface-emitting lighting system to be individually removed without disassembling other panel lights. In other words, if a panel light in the surface-emitting lighting system malfunctions, that panel light can be disassembled, repaired, and reinstalled specifically, without needing to disassemble other working panel lights. This simplifies the maintenance process and improves the efficiency of repairing malfunctioning panel lights in the surface-emitting lighting system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of a panel light of a lighting fixture according to an embodiment of this application. Figure 1 ; Figure 2 for Figure 1 An exploded view of the panel light is shown; Figure 3 A schematic diagram of the structure of a panel light of a lighting fixture according to an embodiment of this application. Figure 2 ; Figure 4 For this Figure 3 An exploded view of the panel light is shown; Figure 5 This is a front view schematic diagram of the LED light source of the panel light of the lighting fixture according to an embodiment of this application; Figure 6 This is a schematic diagram of the assembly structure of a panel light of a lighting fixture according to an embodiment of this application, which is mounted to a fixed mounting part via a first accessory. Figure 7 for Figure 6 An exploded view of the lighting fixtures is shown. Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 An exploded view of a panel light of a lighting fixture according to an embodiment of this application, which is mounted to a fixed mounting part via a spring clip member and a first type of rail ceiling mount; Figure 10 for Figure 9 Enlarged view of point B in the middle; Figure 11 This is a schematic diagram of the structure of the spring clip member and the first rail of the lighting fixture according to an embodiment of this application; Figure 12 This is a schematic diagram of the assembly structure of the panel light, spring clip component and first rail of the lighting fixture according to an embodiment of this application; Figure 13 An exploded view of a panel light of a lighting fixture according to an embodiment of this application, which is suspended to a fixed mounting part by a spring clamp member, a first type rail and a hanging rod; Figure 14 This is a schematic diagram of the structure of a lighting fixture according to an embodiment of this application, in which two adjacent panel lights are connected by a tension member; Figure 15 An exploded view of a panel light of a lighting lamp according to an embodiment of this application, which is ceiling-mounted to a fixed mounting part via a spring clip member, a second type rail, and a third type rail; Figure 16 This is a schematic diagram of a ceiling-mounted structure for a lighting fixture according to an embodiment of this application, used to replace... Figure 15 The ceiling-mounted installation method of the lighting fixture is shown; Figure 17 for Figure 16 Enlarged view of point S in the middle; Figure 18 An exploded view of a panel light of a lighting fixture according to an embodiment of this application, which is mounted to a fixed mounting part via an adapter, a magnetic connector, and a steel rail wall mount. Figure 19 This is an assembly diagram of the panel light, adapter, and magnetic component of a lighting fixture according to an embodiment of this application; Figure 20 for Figure 19 Enlarged view of point C in the middle; Figure 21 This is a front view of the lighting fixture according to an embodiment of this application, after it has been installed on the fixed mounting part. Figure 22 for Figure 21 Enlarged diagram of point D in the middle.

[0018] The figures in the diagram are labeled as follows: 10. Lamp housing; 11. Mounting part; 111. Mounting groove; 112. Mounting rib structure; 1120. Limiting block; 113. Limiting protrusion; 12. Top wall; 121. First edge area; 122. Second edge area; 13. Straight side wall; 14. Indicator arrow; 20. Diffuser; 21. Accommodation space; 22. Light-emitting panel; 23. Circumferential sidewall; 30. LED light source; 31. Substrate; 32. LED assembly; 321. Cool white LED; 322. Warm white LED; 40. Installation accessories; 41. First accessory; 411. First connecting plate; 412. Second connecting plate; 42. Second accessory; 421. Spring clamp component; 422. Connecting end; 4221. Limiting notch; 4222. Snap-fit ​​spring piece; 423. Clamp piece; 424. Mounting rail assembly; 425. First type rail; 426. Second type rail; 4260. Elastic clamping plate; 427. Third type rail; 428. Cross node; 429. Hanging rod; 430. Pulling component; 431. Hook; 432. Protruding column; 433. Adapter; 4331. Hook structure; 4332. Anti-detachment clamping arm; 434. Magnetic component; 435. Rail; 51. Driver; X, horizontal; Y, vertical; H, gap. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] The lighting fixtures provided in the embodiments of this application include panel lights and mounting accessories 40. For example... Figures 1 to 4 As shown, the panel light includes a lamp housing 10, a diffuser 20, and an LED light source 30. Multiple mounting portions 11 are provided on the outer side of the lamp housing 10. The diffuser 20, together with the lamp housing 10, forms a receiving space 21. The LED light source 30 is mounted inside the lamp housing 10 and located within the receiving space 21. A driver 51, electrically connected to the LED light source 30, is mounted on the side of the lamp housing 10 facing away from the receiving space 21. The LED light source 30 emits light that illuminates the diffuser 20 and is transmitted through the diffuser 20. Furthermore, as... Figure 1 and Figure 2As shown, the lamp housing 10 has a top wall 12 and two opposing straight side walls 13. The mounting part 11 includes a mounting groove 111 and multiple mounting rib structures 112. The mounting groove 111 is located on the side of the straight side wall 13 away from the receiving space 21, and the multiple mounting rib structures 112 are located on the side of the top wall 12 away from the receiving space 21. In this lighting fixture, the mounting accessory 40 includes a first accessory 41 and a second accessory 42. The two straight side walls 13 are connected to the first accessory 41 in a one-to-one correspondence. The first accessory 41 is detachably connected to the mounting groove 111, and the multiple mounting rib structures 112 are detachably connected to the second accessory 42 in a one-to-one correspondence. The first accessory 41 and the second accessory 42 can be selected to install a single panel light to the fixed mounting part for illumination, or to assemble multiple panel lights to the fixed mounting part to form a surface-emitting lighting system. Furthermore, a certain panel light in the surface-emitting lighting system can be individually removed without removing the other panel lights.

[0024] The lighting fixture provided by the embodiments of this application allows the panel light to be installed onto a fixed mounting part at the lighting site via mounting accessories 40. The fixed mounting part can be a ceiling, wall, steel frame ceiling, etc. Mounting accessories 40 include a first accessory 41 and a second accessory 42. The lamp housing 10 of the panel light has a mounting part 11 composed of a mounting groove 111 and multiple mounting rib structures 112. The mounting groove 111 is adapted to the first accessory 41, and the multiple mounting rib structures 112 are adapted to the second accessory 42. When installing the lighting fixture at the lighting site, either the first accessory 41 or the second accessory 42 can be selected. Thus, the lighting fixture provided by the embodiments of this application integrates multiple installation methods on a single panel light, allowing for adaptation and selection according to the assembly requirements of the lighting site. This diversifies the assembly methods of the panel light, enabling flexible assembly and improving installation efficiency. Furthermore, this lighting fixture assembles multiple panel lights into a fixed mounting part to form a surface-emitting lighting system, thus creating a larger lighting area. Multiple panel lights are installed using the first accessory 41 in conjunction with the mounting slot 111 or the second accessory 42 in conjunction with multiple mounting rib structures 112. This allows a single panel light in the surface-emitting lighting system to be individually removed without disassembling other panel lights. In other words, if a panel light in the surface-emitting lighting system malfunctions, that panel light can be disassembled, repaired, and reinstalled specifically, without needing to disassemble other working panel lights. This simplifies the maintenance process and improves the efficiency of repairing malfunctioning panel lights in the surface-emitting lighting system.

[0025] In some embodiments of the lighting fixture, the first accessory 41 is a strip-shaped accessory, which is fitted and assembled into the mounting groove 111. Specifically, as shown... Figures 6 to 8As shown, the first accessory 41 includes a first connecting plate 411 and a second connecting plate 412 that are bent and connected together. The first connecting plate 411 and the second connecting plate 412 can be integrally formed components obtained by bending strip-shaped plates, or components formed by welding two plates together. During assembly, the first connecting plate 411 is snapped into the mounting groove 111, and the second connecting plate 412 is used to install onto the fixed mounting part, thereby mounting the panel light onto the fixed mounting part. In this embodiment, the fixed mounting part takes a suspended ceiling as an example. The suspended ceiling has pre-set matching mounting joists. The distance between two parallel and adjacent mounting joists is basically equal to the distance between the two second connecting plates 412 of the two first accessories 41 on the panel light (actually slightly larger by 1mm-5mm). Furthermore, the edge area of ​​the second connecting plate 412 away from the first connecting plate 411 has an inverted flange facing the panel light. After the first connecting plates 411 of the two first accessories 41 are respectively inserted into the two mounting slots 111 of the panel light, the two second connecting plates 412 are aligned with the two mounting joists and pushed forcefully, so that the inverted flanges of the second connecting plates 412 hook onto the mounting joists, thereby completing the installation of the panel light into the suspended ceiling. At this time, the panel light is embedded in the suspended ceiling. When multiple panel lights are embedded in the suspended ceiling in a rectangular array, the multiple panel lights are assembled to form a surface-emitting lighting system. When one of the panel lights malfunctions, the worker only needs to apply vertical downward force to the malfunctioning panel light to make the inverted flanges of the second connecting plates 412 detach from the mounting joists, so that the malfunctioning panel light can be removed and repaired individually without disassembling other fault-free panel lights. After the repair work is completed, the panel light can be reinstalled in its original position to restore the surface-emitting lighting system, thus improving the repair efficiency of malfunctioning panel lights in the surface-emitting lighting system.

[0026] In order for the first connecting plate 411 of the first accessory 41 to be stably snapped into the mounting slot 111, such as Figure 8 As shown, the mounting groove 111 has a limiting protrusion 113 on its groove wall. The limiting protrusion 113 is fitted onto the first connecting plate 411 to prevent the first connecting plate 411 from coming out of the mounting groove 111. Thus, after the first connecting plate 411 is engaged with the mounting groove 111, the limiting protrusion 113 ensures a stable connection between the first accessory 41 and the lamp housing 10. Therefore, when the second connecting plate 412 is hooked onto the mounting keel, the first accessory 41 will not wobble or shift relative to the lamp housing 10, allowing for accurate and quick hooking of the inverted flange of the second connecting plate 412 onto the mounting keel, thereby improving installation efficiency.

[0027] In other embodiments of the lighting fixtures, such as Figures 9 to 13 , Figure 15As shown, the second accessory 42 includes a spring clip member 421 and a mounting rail assembly 424, with the panel light detachably connected to the mounting rail assembly 424 via the spring clip member 421. Wherein, as Figure 10 As shown, the mounting rib structure 112 consists of two opposing ribs, each with an internal slot, and, as... Figure 11 The spring clip component 421 has a connecting end 422 and two clips 423 connected to the connecting end 422. The connecting end 422 is provided with snap-fit ​​spring pieces 4222 that correspond one-to-one with the inner slots of the two ribs. By snapping the two snap-fit ​​spring pieces 4222 into the two inner slots respectively, the spring clip component 421 is stably connected to the mounting rib structure 112. That is to say, the connecting end 422 is detachably connected to the mounting rib structure 112. The mounting rail assembly 424 is used to install it to the fixed mounting part. After connecting the connecting end 422 to the mounting rib structure 112, the two clips 423 are clamped and installed onto the mounting rail assembly 424, thereby completing the installation of the panel light onto the fixed mounting part, resulting in high installation efficiency. When multiple panel lights are embedded in a rectangular array in the suspended ceiling, they form a surface-emitting lighting system. When one of the panel lights malfunctions, the worker only needs to apply vertical downward force to the malfunctioning panel light to disengage the two clips 423 from the mounting rail assembly 424. This allows the malfunctioning panel light to be removed and repaired individually without needing to disassemble other working panel lights. After the repair is completed, the panel light can be reinstalled in its original position to restore the surface-emitting lighting system, thus improving the repair efficiency of malfunctioning panel lights in the surface-emitting lighting system.

[0028] like Figure 10 and Figure 11 As shown, in order to ensure that the two snap-fit ​​spring pieces 4222 of the snap-fit ​​insertion into the inner slot of the mounting rib structure 112 remain stable within the inner slot, the rib plate of the mounting rib structure 112 is provided with a limiting snap block 1120, and the snap-fit ​​spring piece 4222 is provided with a limiting notch 4221 that matches the limiting snap block 1120. When the snap-fit ​​spring piece 4222 is snapped into the inner slot, the limiting snap block 1120 is engaged within the limiting notch 4221, thereby preventing the snap-fit ​​spring piece 4222 from sliding relative to each other within the inner slot, that is, the snap-fit ​​spring piece 4222 remains stable within the inner slot.

[0029] In the first embodiment where the panel light is installed to the fixed mounting part using the second accessory 42, such as Figures 9 to 12 As shown, the mounting part 11 includes four mounting rib structures 112, which are respectively located at the four corners of the top wall 12 near the four ends of the two straight side walls 13. Furthermore, the mounting rail assembly 424 includes at least two parallel first-type rails 425, which are laid parallel to each other on the ceiling (i.e., the fixed mounting part in this embodiment is the ceiling). Figure 9and Figure 12 As shown, spring clamping members 421 are installed on the four mounting ribs 112 at the four corners of the top wall 12. The light panels are then clamped onto the first rails 425 by the two clamping pieces 423 of the spring clamping members 421, thus ceiling-mounting the panel lights onto the ceiling with high installation efficiency. Furthermore, multiple first rails 425 are laid on the ceiling in pairs, and multiple panel lights are connected to the corresponding first rails 425 in a rectangular array via the spring clamping members 421, thereby assembling a surface-emitting lighting system.

[0030] In the second embodiment where the panel light is installed to the fixed mounting part using the second accessory 42, such as Figure 13 and Figure 14 As shown, the second accessory 42 also includes a suspension rod 429 and a tension member 430. The first rail 425 is suspended and connected to the fixed mounting part by multiple suspension rods 429. Then, the panel light is clamped and installed onto the first rail 425 by two clips 423 of the spring clip member 421, thereby suspending the panel light onto the fixed mounting part (in this embodiment, the fixed mounting part can be a ceiling or a steel frame ceiling). Furthermore, multiple first rails 425 suspended and connected to the fixed mounting part by suspension rods 429 are grouped in pairs, and multiple panel lights are connected to the corresponding first rails 425 in a rectangular array by the spring clip member 421, thereby assembling a surface-emitting lighting system. In two adjacent panel lights of the surface-emitting lighting system, the first end of the tension member 430 is connected to the top wall 12 of one of the panel lights, and the second end of the tension member 430 is formed with a hook 431. The top wall 12 of the other panel light is provided with a protrusion 432, and the hook 431 is hooked onto the protrusion 432. Thus, by applying tension to two adjacent panel lights through the tensioning member 430, the two adjacent panel lights are brought into close contact with each other, ensuring the stability of the entire luminous surface of the surface-emitting lighting system and improving the lighting effect of the surface-emitting lighting system. Alternatively, an alternative installation method can be provided: the spring clip member 421 is omitted, and two elastic locking tabs are integrated into the first rail 425. These two elastic locking tabs have two opposing inverted flanges. The inverted flanges of the two elastic locking tabs are engaged with the two inner slots of the mounting rib structure 112, thereby installing the panel lights onto the fixed mounting part.

[0031] Of course, in the first embodiment described above where the second accessory 42 is used to install the panel light to the fixed mounting part, adjacent panel lights can also be connected by the tension member 430 to make the adjacent panel lights stick to each other.

[0032] In the third embodiment where the second accessory 42 is used to install the panel light to the fixed mounting part, such as Figure 15As shown, the mounting part 11 includes four mounting rib structures 112. The top wall 12 has two first edge regions 121 corresponding to two straight side walls 13 and two second edge regions 122 located between the two straight side walls 13 and opposite to each other. Two mounting rib structures 112 are respectively located at the middle position of the two first edge regions 121, and the other two mounting rib structures 112 are respectively located at the middle position of the two second edge regions 122. All four mounting rib structures 112 are connected to spring clamp members 421. The mounting rail assembly 424 includes a plurality of second type rails 426 and a plurality of third type rails 427. The second type rails 426 and third type rails 427 are laid on the ceiling and are arranged vertically to form a cross node 428. When the panel light is detachably connected to the second type rails 426 and third type rails 427 through the spring clamp members 421, the panel light mounted to the ceiling covers a cross node 428. Furthermore, multiple panel lights are connected in a rectangular array to corresponding second-type rails 426 and third-type rails 427 via spring clamp members 421, thereby assembling a surface-emitting lighting system. At this point, multiple panel lights correspond one-to-one with multiple cross nodes 428. In this embodiment, adjacent panel lights can also be connected by a tension member 430, making them fit tightly together. Additionally, an alternative installation method to this embodiment is provided, such as... Figure 16 and Figure 17 As shown, the spring clip component 421 is omitted, and two elastic clamping plates 4260 are integrated on both the second type rail 426 and the third type rail 427. The two elastic clamping plates 4260 are provided with two oppositely opposed inverted hook structures 4261. When the inverted hook structures 4261 of the two elastic clamping plates 4260 are engaged into the two inner slots of the mounting rib structure 112, the panel light is installed on the fixed mounting part.

[0033] In the fourth embodiment where the second accessory 42 is used to install the panel light to the fixed mounting part, such as Figures 18 to 20 As shown, the mounting part 11 includes four mounting rib structures 112, which are respectively located at the four corners of the top wall 12 near the four ends of the two straight side walls 13. The second accessory 42 includes an adapter 433, a magnetic connector 434, and a rail 435. Figure 20As shown, the mounting rib structure 112 consists of two opposing ribs, each with an inner slot. The adapter 433 includes two snap-fit ​​plates, each with a hook structure 4331 adapted to the inner slot. The hook structures of the two snap-fit ​​plates engage with the inner slot, thus detachably connecting the adapter 433 to the mounting rib structure 112. Furthermore, the snap-fit ​​plates have anti-detachment clamping arms 4332. When the hook structure engages with the inner slot, the anti-detachment clamping arms 4332 cooperate with the snap-fit ​​plates to clamp the ribs of the mounting rib structure 112, preventing the adapter 433 from detaching from the mounting rib structure 112. A magnetic suction component 434 is detachably connected to the adapter 433. A steel rail 435 is used to install onto a fixed mounting part (in this embodiment, the fixed mounting part can be a ceiling or a wall), and the magnetic suction component 434 is magnetically fixed to the steel rail 435. The magnetic locator 434 and the adapter 433 are connected by a bolt and nut joint. After the magnetic locator 434 is assembled onto the mounting rib structure 112 via the adapter 433, its relative height to the top wall 12 can be adjusted by screwing it, thus leveling the panel light. Multiple panel lights are magnetically attracted to corresponding rails 435 in a rectangular array using the magnetic locators 434, thus forming a surface-emitting lighting system. In this embodiment, to prevent injury from sudden drops of the panel lights, a safety cable, such as a steel wire rope or a chain, can be connected between the panel lights and the rails 435. The safety cable can hold the panel light in place when the magnetic locator 434 detaches from the rails 435, preventing sudden drops and protecting personnel safety. Furthermore, in this embodiment, two adjacent panel lights can also be connected by a pulling member 430 to make the two adjacent panel lights stick together. When the magnetic part 434 of a certain panel light is detached from the rail 435, the adjacent panel light can be pulled by the pulling member 430 to prevent the panel light from falling suddenly, together with the safety rope.

[0034] Of course, in the other embodiments described above, the panel light can also be connected to a safety cable to prevent the panel light from suddenly falling, which helps protect personnel safety.

[0035] like Figures 2 to 4 , Figure 21 and Figure 22 As shown, the diffuser 20 of the panel light of this lighting fixture has a light-emitting panel 22 and a circumferential sidewall 23 connected to the circumferential edge of the light-emitting panel 22. Along the direction from the lamp housing 10 to the diffuser 20, the outer surface of the circumferential sidewall 23 is inclined towards the receiving space 21. That is, the circumferential sidewall 23 of the diffuser 20 has a draft angle, which facilitates demolding during injection molding (or injection molding) of the diffuser 20, improving manufacturing efficiency. Furthermore, in a surface-emitting lighting system composed of multiple panel lights assembled together, such as... Figure 21 and Figure 22 As shown, since the outer surface of the circumferential sidewall 23 is inclined toward the receiving space 21, when the lamp housings 10 of two adjacent panel lights are close together, there is a gap H between the two adjacent diffusers 20. The gap H is 1mm-3mm in size, so that the brightness at the connection between the two adjacent panel lights is uniform, and the brightness of the entire light-emitting surface of the surface-emitting lighting system is uniform, thus improving the lighting effect.

[0036] In the LED light source 30 of the panel light of this lighting fixture, such as Figure 5As shown, the LED light source 30 includes a substrate 31 and multiple LED groups 32 mounted on the substrate 31. The substrate 31 is mounted on the top wall 12, and the multiple LED groups 32 face the light-emitting panel 22. The multiple LED groups 32 are arranged in an array along the longitudinal and transverse directions on the substrate 31, with columns along the longitudinal direction Y and rows along the transverse direction X. Each LED group 32 includes a cool white LED 321 and a warm white LED 322. In the multiple rows of LED groups 32 along the longitudinal direction Y, the cool white LED 321 and warm white LED 322 in the LED groups 32 located at both ends of each column are arranged along the transverse direction X, and the cool white LED 321 and warm white LED 322 in the remaining LED groups 32 are arranged along the longitudinal direction Y. The spacing between the cool white LED 321 and warm white LED 322 in each LED group 32 is 15 mm. In the same column of LED groups 32, the cool white LEDs 321 and warm white LEDs 322 of the two LED groups 32 at both ends are distributed in the same horizontal direction (X), while the cool white LEDs 321 and warm white LEDs 322 of the remaining LED groups 32 are distributed in the same vertical direction (Y). Furthermore, in the same row of LED groups 32, the cool white LEDs 321 and warm white LEDs 322 of adjacent LED groups 32 are arranged in opposite directions. In this embodiment, the LED light source 30 can achieve color difference-free CCT adjustment (CCT is an abbreviation for Correlated Color Temperature, i.e., relative color temperature; CCT adjustment is relative color temperature adjustment) from 2700K to 6500K, and maintain the uniformity of light output across the entire light-emitting panel 22 of the panel light, thereby improving the lighting effect. Furthermore, in each column of LED groups 32 along the longitudinal direction Y, the distance between the LED groups 32 located at both ends of each column (i.e., the LED groups 32 with cool white LEDs 321 and warm white LEDs 322 arranged along the transverse direction X) and the adjacent LED groups 32 (i.e., the LED groups 32 with cool white LEDs 321 and warm white LEDs 322 arranged along the longitudinal direction Y) is 36mm-38mm, preferably 36.8mm. In the remaining LED groups 32 with cool white LEDs 321 and warm white LEDs 322 arranged along the longitudinal direction Y, the distance between two adjacent LED groups 32 is 46mm-56mm. Among them, the distance between the two LED groups 32 with cool white LEDs 321 and warm white LEDs 322 arranged along the longitudinal direction Y near the end of each column is 48mm, and the distance between the remaining LED groups 32 with cool white LEDs 321 and warm white LEDs 322 arranged along the longitudinal direction Y and the adjacent LED groups 32 is 54mm. Along the transverse direction X, the spacing between two adjacent LED groups 32 is 48mm-50mm, preferably 49mm (i.e., the spacing between columns is 49mm). Furthermore, the spacing between the circumferential sidewall 23 of the diffuser 20 and the adjacent LED group 32 is 35mm-37mm, preferably 36mm.

[0037] Of course, in other embodiments of the panel light of the lighting fixture, the LED light source 30 may also employ multiple single-color temperature LED chips arranged in a rectangular array on the substrate 31. For example, the multiple LED chips used in the LED light source 30 may all be cool white LEDs 321, or the multiple LED chips used in the LED light source 30 may all be warm white LEDs 322. Similarly, the LED light source 30 may also be a neutral color temperature LED chip, and this is not a unique limitation.

[0038] When multiple panel lights are assembled to form a surface-emitting lighting system, the longitudinal and transverse directions of the LED light sources 30 of each panel light must be consistent. For example, the indicator arrow 14 on the top wall 12 can be used as a reference; the direction indicated by the indicator arrow 14 can be the transverse X direction.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lighting fixture, comprising a panel light, the panel light comprising: The lamp housing (10) has multiple mounting parts (11) on its outer side. The diffuser (20) and the lamp housing (10) cover together form a receiving space (21). An LED light source (30) is installed inside the lamp housing (10) and located in the receiving space (21). The LED light source (30) emits light and illuminates the diffuser (20) and transmits light from the diffuser (20). Its features are, The lamp housing (10) has a top wall (12) and two opposing straight side walls (13). The mounting part (11) includes a mounting groove (111) and a plurality of mounting rib structures (112). The mounting groove (111) is located on the side of the straight side wall (13) away from the receiving space (21), and the plurality of mounting rib structures (112) are located on the side of the top wall (12) away from the receiving space (21). The lighting fixture also includes mounting accessories (40), which include a first accessory (41) and a second accessory (42). The two straight sidewalls (13) are connected to the first accessory (41) in a one-to-one correspondence. The first accessory (41) is detachably connected to the mounting groove (111). The multiple mounting rib structures (112) are detachably connected to the second accessory (42) in a one-to-one correspondence. The first accessory (41) and the second accessory (42) can be selected to install a single panel light to the fixed mounting part for lighting, or to assemble multiple panel lights to the fixed mounting part to form a surface-emitting lighting system. In this surface-emitting lighting system, a certain panel light can be disassembled individually without disassembling the other panel lights.

2. The lighting fixture according to claim 1, characterized in that, The first accessory (41) includes a first connecting plate (411) and a second connecting plate (412) that are bent and connected together. The first connecting plate (411) is snapped into the mounting groove (111), and the second connecting plate (412) is used to install to the fixed mounting part.

3. The lighting fixture according to claim 2, characterized in that, The mounting groove (111) has a limiting protrusion (113) on its groove wall. The limiting protrusion (113) is fitted to the first connecting plate (411) to limit the first connecting plate (411) from coming out of the mounting groove (111).

4. The lighting fixture according to claim 1, characterized in that, The second accessory (42) includes a spring clip member (421) and a mounting rail assembly (424). The spring clip member (421) has a connecting end (422) and two clips (423) connected to the connecting end (422). The connecting end (422) is detachably connected to the mounting rib structure (112). The mounting rail assembly (424) is used to install to the fixed mounting part. The two clips (423) are clamped and installed on the mounting rail assembly (424).

5. The lighting fixture according to claim 4, characterized in that, The mounting part (11) includes four mounting rib structures (112), which are respectively located at the four corners of the top wall (12) near the four ends of the two straight side walls (13). The mounting rail assembly (424) includes at least two parallel first rails (425).

6. The lighting fixture according to claim 5, characterized in that, The second accessory (42) also includes a hanger (429) and a tension member (430). The first rail (425) is suspended and connected to the fixed mounting part by a plurality of the hangers (429). In two adjacent panel lights of the surface-emitting lighting system, the first end of the tension member (430) is connected to the top wall (12) of one of the panel lights. The second end of the tension member (430) is formed with a hook (431). The top wall (12) of the other panel light is provided with a protrusion (432). The hook (431) is hooked to the protrusion (432).

7. The lighting fixture according to claim 4, characterized in that, The mounting part (11) includes four mounting rib structures (112). The top wall (12) has two first edge regions (121) corresponding to the two straight side walls (13) and two second edge regions (122) located between and opposite the two straight side walls (13). Two mounting rib structures (112) are respectively located at the middle position of the two first edge regions (121), and two other mounting rib structures (112) are respectively located at the middle position of the two second edge regions (122). The mounting rail assembly (424) includes a plurality of second type rails (426) and a plurality of third type rails (427). The second type rails (426) and the third type rails (427) are arranged perpendicularly to form at least one cross node (428). The panel light covers one of the cross nodes (428).

8. The lighting fixture according to claim 1, characterized in that, The mounting part (11) includes four mounting rib structures (112), which are respectively located at the four corners of the top wall (12) near the four ends of the two straight side walls (13). The second accessory (42) includes a connector (433), a magnetic connector (434), and a rail (435). The connector (433) is detachably connected to the mounting rib structure (112), and the magnetic connector (434) is detachably connected to the connector (433). The rail (435) is used to install to the fixed mounting part, and the magnetic connector (434) is magnetically fixed to the rail (435).

9. The lighting fixture according to any one of claims 1-8, characterized in that, The diffuser (20) has a light-emitting panel (22) and a circumferential sidewall (23) connected to the circumferential edge of the light-emitting panel (22). Along the direction from the lamp housing (10) to the diffuser (20), the outer surface of the circumferential sidewall (23) is inclined toward the receiving space (21). In the surface-emitting lighting system, when the lamp housings (10) of two adjacent panel lamps are pressed together, there is a gap (H) between the two adjacent diffusers (20).

10. The lighting fixture according to claim 9, characterized in that, The LED light source (30) includes a substrate (31) and multiple LED groups (32) mounted on the substrate (31). The substrate (31) is mounted on the top wall (12). The multiple LED groups (32) face the light-emitting panel (22). The multiple LED groups (32) are arranged in an array along the longitudinal and transverse directions on the substrate (31). Each LED group (32) includes a cool white LED (321) and a warm white LED (322). In the multiple columns of LED groups (32) along the longitudinal direction (Y), the cool white LED (321) and the warm white LED (322) in the LED groups (32) located at both ends of each column are arranged in the transverse direction (X). The cool white LED (321) and the warm white LED (322) in the remaining LED groups (32) are arranged in the longitudinal direction (Y).

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