LED lighting fixture

Abstract

The application discloses a lighting lamp, which comprises a supporting unit, a photoelectric module and a power module. The supporting unit comprises a base, a back plate and a side wall. The base comprises a bottom plate. The back plate is connected with the base and two side edges of the base. The back plate is inclined to the base by an angle of 0-90 degrees. The side wall is connected with the side edges of the base and the back plate. The side wall, the base and the back plate are connected and form a containing space. The photoelectric module is arranged on the base. The power module is arranged outside the containing space. An outer frame is arranged on the supporting unit and is fixed with the side wall and the back plate. A hanging support is arranged on the back plate and / or the side wall. The photoelectric module comprises a light-emitting unit and a light processing unit. The light processing unit comprises a diffusion piece and a diffusion piece end cover. The diffusion piece is in an arc structure and is arranged on the light-emitting unit in a light-emitting direction. Light emitted by the photoelectric module at least partially penetrates the diffusion piece and is projected to the back plate. The light-emitting unit comprises a light-emitting assembly which is arranged on the bottom plate in a parallel mode.

Description

[0001] This utility model application is a divisional application filed with the Chinese Patent Office on September 20, 2024, with application number 2024223063108 and the utility model title "LED Lighting Fixture". Technical Field

[0002] This application relates to the technical field of LED lighting devices, and more specifically to an LED lighting fixture. Background Technology

[0003] LED lighting fixtures are lamps that use light-emitting diodes (LEDs) as their light source. They are widely used due to their advantages such as energy saving and long lifespan. Flat panel lights, a type of LED lighting fixture, can be embedded in the ceiling and are favored for their thinness, lightness, and large illumination area.

[0004] In existing flat panel lights, the light source is usually placed in the middle area of ​​the flat panel light, and the light is emitted into the indoor environment through the light-emitting surface corresponding to the middle area. The disadvantage of this type of flat panel light is that there is only one light-emitting surface, and the light in the illuminated indoor environment is uneven. For example, the indoor environment may have a situation where the middle area is too bright and the surrounding areas are relatively dark.

[0005] To address the aforementioned issue of uneven light distribution, commercially available solutions utilize batwing diffuser films to achieve a batwing-shaped light pattern. These batwing diffuser films, with their unique microprismatic structure, are expensive and have a less appealing appearance. Furthermore, due to their double-sided microstructure, they require a transparent support plate for fixation. To achieve the desired batwing light pattern, the position and curvature of the batwing diffuser film must be designed according to the light-emitting surface of the light source, making the lamp's structural design quite complex.

[0006] Furthermore, existing flat panel lights, by placing the light source in the central area, suffer from uneven illumination due to the limited beam angle of the LEDs. This results in dark areas, particularly around the edges, where some areas on the base of the flat panel light are not illuminated. To address this issue, lenses are typically added to change the light emission direction of the LEDs. However, this method adds an extra layer of complexity to the flat panel light's design and makes it aesthetically unappealing.

[0007] In existing technologies, the lampshade is often attached to the lamp body after the main structure of the lamp body has been assembled, which results in an unstable connection.

[0008] In summary, given the shortcomings and defects of existing flat panel lights, how to design flat panel lights to form a uniform light pattern and / or avoid dark areas, thereby improving the reliability of the lights, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0009] This abstract describes many embodiments of this application. However, the terminology used herein is only used to describe certain embodiments disclosed in this specification (whether or not they are included in the claims), and not a complete description of all possible embodiments. Some embodiments of the various features or aspects of this application described above may be combined in different ways to form an LED luminaire or a part thereof.

[0010] The purpose of this application embodiment one is to provide an LED lighting fixture, characterized in that it includes:

[0011] A support unit includes a base, two back plates, and two side walls. The base includes a bottom plate. The two back plates are respectively connected to two opposite sides of the base. The two side walls are respectively connected to another opposite side of the base. The back plates are inclined at 0 to 90 degrees relative to the base. The side of the side wall connected to the base is connected to the two back plates. The two side walls, the base, and the two back plates are connected to form an accommodating space.

[0012] An optoelectronic module is disposed on the base and at least partially disposed within the accommodating space;

[0013] A power module, wherein the power module is disposed outside the accommodating space and is attached to the support unit;

[0014] The outer frame is disposed at one end of the support unit along the light emission direction of the LED lighting fixture, and is connected and fixed to the two side walls and the two back plates;

[0015] Hanging support, the hanging support is disposed on the back plate and / or the side wall;

[0016] The optoelectronic module includes a light-emitting unit and a light-processing unit. The light-processing unit includes a diffuser and diffuser end caps disposed at both ends of the diffuser. The diffuser has an arc-shaped structure and is positioned in the light-emitting direction of the light-emitting unit, completely covering the light-emitting unit. The light emitted by the optoelectronic module at least partially penetrates the diffuser and is projected onto the back plate.

[0017] The light-emitting unit includes multiple sets of light-emitting components, which are arranged in parallel on the base plate.

[0018] The diffuser end caps are disposed at both ends of the diffuser, the diffuser is fixed to the support unit by the diffuser end caps, and a sensing device is disposed on the diffuser end caps.

[0019] In one embodiment of this application, the light-emitting component includes multiple sets of first light-emitting components. Each first light-emitting component includes a first circuit board and multiple first light-emitting elements disposed on the first circuit board. The first light-emitting elements are evenly distributed on the first circuit board.

[0020] In one embodiment of this application, the center line of the light beam of the first light-emitting component is perpendicular to the base.

[0021] In one embodiment of this application, the power module includes a power circuit board and an emergency power module disposed on the power circuit board. The emergency power module includes an emergency power supply and an energy storage battery disposed on the power circuit board, and the emergency power supply is electrically connected to the energy storage battery.

[0022] In one embodiment of this application, the shortest distance from the light-emitting unit to the long side of the diffuser is La, and the vertical distance from the long side of the diffuser to the edge of the back plate is Lb, where 0.5≤Lb / La≤2.

[0023] In one embodiment of this application, the distance from the bottom plate to the highest point of the back plate is Lc, then 1≤La / Lc≤2, 1≤La / Lc≤6.

[0024] In one embodiment of this application, the diffuser extends along the length of the LED lighting fixture, and a micro-array optical structure is provided on the inner or outer wall of the diffuser.

[0025] In one embodiment of this application, the light-emitting unit includes a first light-emitting component and a second light-emitting component, and the power module controls the first light-emitting component and the second light-emitting component respectively to achieve dimming and color adjustment.

[0026] In one embodiment of this application, the light-emitting unit includes a first light-emitting component and a second light-emitting component, and the power module simultaneously controls the first light-emitting component and the second light-emitting component to achieve dimming and color adjustment.

[0027] In one embodiment of this application, the light emitted by the first light-emitting component, after the diffusion treatment, is at least partially emitted directly from the diffuser to the outside of the LED lighting fixture, and at least partially projected onto the back plate, and finally emitted from the LED lighting fixture after being reflected by the back plate.

[0028] In one embodiment of this application, the light emitted by the first light-emitting component, after being processed by the diffuser, is at least partially emitted directly from the diffuser to the outside of the LED lighting fixture, at least partially projected from the diffuser to the back plate, reflected again by the back plate to the diffuser, and finally emitted from the LED lighting fixture after being reflected by the diffuser.

[0029] In one embodiment of this application, at least a portion of the light emitted by the first light-emitting component is directly emitted after being processed by the diffuser.

[0030] In one embodiment of this application, the light emitted by the second light-emitting component, after being processed by the diffuser, is at least partially emitted directly from the diffuser to the outside of the LED lighting fixture, at least partially projected from the diffuser to the back plate, reflected again by the back plate to the diffuser, and finally emitted from the LED lighting fixture after being reflected by the diffuser.

[0031] In one embodiment of this application, the base plate has a base plate mounting portion, the base plate mounting portion has a top surface parallel to the base plate and a side surface inclined relative to the base plate, and the first light-emitting component is disposed on the top surface.

[0032] In one embodiment of this application, a second light-emitting component is further included, which is disposed on the side; at least a portion of the light emitted by the second light-emitting component is emitted from the diffuser and projected onto the back plate.

[0033] In one embodiment of this application, the second light-emitting component and the first light-emitting component are inclined to each other, and the included angle between them is greater than or equal to 90 degrees.

[0034] In summary, the LED lighting fixture disclosed in this application is provided with a third light-emitting component whose beam center line is oriented toward the support unit of the LED lighting fixture, thereby illuminating the area on the support unit that cannot be illuminated by the first light-emitting component, increasing the light uniformity on the surface of the support unit and avoiding dark areas.

[0035] Other aspects and advantages of this application will readily be apparent to those skilled in the art from the detailed description below. Only exemplary embodiments of this application are shown and described in the following detailed description. As will be appreciated by those skilled in the art, the content of this application enables them to make modifications to the disclosed specific embodiments without departing from the spirit and scope of the invention to which this application pertains. Accordingly, the descriptions in the accompanying drawings and specification of this application are merely exemplary and not restrictive. Attached Figure Description

[0036] The specific features involved in this application are shown in the appended claims. A better understanding of the features and advantages of this application can be achieved by referring to the exemplary embodiments and accompanying drawings described in detail below. A brief description of the drawings is as follows:

[0037] Figure 1 The image shown is a front view schematic diagram of an LED lighting fixture in one embodiment of this application;

[0038] Figure 2The diagram shown is a left-side view of an LED lighting fixture according to one embodiment of this application;

[0039] Figure 3 The diagram shown is a three-dimensional structural schematic of an LED lighting fixture according to one embodiment of this application;

[0040] Figure 4 The diagram shown is a three-dimensional structural schematic of the support unit in one embodiment of this application;

[0041] Figure 5 The diagram shown is a disassembled structural diagram of an LED lighting fixture in one embodiment of this application.

[0042] Figure 6 The diagram shows a three-dimensional structural schematic of the light-emitting unit and the support unit cooperating in one embodiment of this application;

[0043] Figure 7 The diagram shows a three-dimensional structural schematic of the light-emitting unit in one embodiment of this application;

[0044] Figure 8 The diagram shown is a light pattern diagram of a first light-emitting component in one embodiment of this application.

[0045] Figure 9 The diagram shows a three-dimensional structural schematic of the light-emitting unit and the support unit cooperating in one embodiment of this application;

[0046] Figure 10 This application is displayed. Figure 9 A partial enlarged view of the base and the light-emitting unit in the embodiment shown;

[0047] Figure 11 The diagram shown is a cross-sectional view of an LED lighting fixture along the X-axis in one embodiment of this application.

[0048] Figure 12 This application is displayed as being in Figure 11 A schematic diagram of the light emission from the LED lighting fixture in the illustrated embodiment;

[0049] Figure 13 This application is displayed as being in Figure 11 The light pattern diagram of the LED lighting fixture in the illustrated embodiment;

[0050] Figure 14 The diagram shown is a cross-sectional view of an LED lighting fixture including a beam control component along the X-axis in one embodiment of this application.

[0051] Figure 15 This application is displayed as being in Figure 14 A partial enlarged view of part A in the illustrated embodiment;

[0052] Figure 16This application is displayed as being in Figure 14 The light pattern diagram of the LED lighting fixture in the illustrated embodiment;

[0053] Figure 17 The diagram shown is a schematic representation of the sawtooth lens in one embodiment of this application.

[0054] Figure 18 The diagram shows a partial structural schematic of the sawtooth lens and the second light-emitting unit cooperating in one embodiment of this application.

[0055] Figure 19 This application is displayed as being in Figure 18 The light pattern diagram of the LED lighting fixture in the illustrated embodiment;

[0056] Figure 20 The diagram shown is a cross-sectional view of an LED lighting fixture including a beam control component along the X-axis in one embodiment of this application.

[0057] Figure 21 This application is displayed as being in Figure 20 A partial enlarged view of part B in the illustrated embodiment;

[0058] Figure 22 This application is displayed as being in Figure 20 The light pattern diagram of the LED lighting fixture in the illustrated embodiment;

[0059] Figure 23 The diagram shown is a three-dimensional structural schematic of an LED lighting fixture according to one embodiment of this application;

[0060] Figure 24A The diagram shown is a split structure schematic of an LED lighting fixture in one embodiment of this application;

[0061] Figure 24B The diagram shows a split structure of an LED lighting fixture in another embodiment of this application.

[0062] Figure 25 The diagram shows a three-dimensional structural schematic of the light-emitting unit and beam control component cooperating with the support unit in one embodiment of this application;

[0063] Figure 26 This application is displayed as being in Figure 25 A partial enlarged view of the base and optoelectronic module in the embodiment shown;

[0064] Figure 27 The diagram shown is a cross-sectional view of an LED lighting fixture according to one embodiment of this application.

[0065] Figure 28 This application is displayed as being in Figure 27 A partial enlarged view of part C in the illustrated embodiment;

[0066] Figure 29 This application is displayed as being in Figure 27 The light pattern diagram of the LED lighting fixture in the illustrated embodiment;

[0067] Figure 30 The diagram shows a three-dimensional structural schematic of the reflective structure and the second light-emitting component in one embodiment of this application.

[0068] Figure 31 The diagram shows the light pattern of an LED lighting fixture with reflectors configured at different tilt angles in one embodiment of this application.

[0069] Figure 32 The diagram shows the light pattern of LED lighting fixtures configured with different first tilt angles in one embodiment of this application;

[0070] Figure 33 This application is displayed as being in Figure 6 A schematic diagram of light emission from the first light-emitting component in the illustrated embodiment;

[0071] Figure 34 The diagram shows a three-dimensional structural schematic of the first light-emitting component and the support unit cooperating in one embodiment of this application;

[0072] Figure 35 This application is shown as follows Figure 34 A schematic diagram of light emission from the first light-emitting component in the illustrated embodiment;

[0073] Figure 36 The diagram shown is a three-dimensional structural schematic of an LED lighting fixture according to one embodiment of this application;

[0074] Figure 37 This application is displayed as being in Figure 36 A schematic diagram of the disassembled structure of the LED lighting fixture in the illustrated embodiment;

[0075] Figure 38 The diagram shows a three-dimensional structural schematic of the third light-emitting component and the support unit cooperating in one embodiment of this application;

[0076] Figure 39 This application is displayed as being in Figure 36 A schematic diagram of the light emission of the first and third light-emitting components in the illustrated embodiment;

[0077] Figure 40 The diagram shows a structural schematic of the cooperation between the third light-emitting component and the support structure in one embodiment of this application.

[0078] Figure 41 This application is displayed as being in Figure 36 The light pattern diagram of the LED lighting fixture in the illustrated embodiment;

[0079] Figure 42 This application is displayed as being in Figure 36 Illuminance diagram of the illuminated surface at 2.5m from the LED lighting fixture in the illustrated embodiment;

[0080] Figure 43 This application is displayed as being in Figure 36 Illuminance diagram of each area within the LED lighting fixture in the illustrated embodiment;

[0081] Figure 44 This application is displayed as being in Figure 37 A schematic diagram of the split structure of the light processing unit in the embodiment shown;

[0082] Figure 45 This application is displayed as being in Figure 36 A cross-sectional structural schematic diagram of the LED lighting fixture in the illustrated embodiment;

[0083] Figure 46 This is a three-dimensional structural schematic diagram of an LED lighting fixture according to an embodiment of this application;

[0084] Figure 47A This is an exploded structural diagram of an LED lighting fixture according to one embodiment of this application;

[0085] Figure 47B This is an exploded structural diagram of an LED lighting fixture from another perspective in one embodiment of this application;

[0086] Figure 47C This is an exploded view of the photoelectric unit of an LED lighting fixture according to one embodiment of this application;

[0087] Figure 48 This is a front view of an LED lighting fixture according to an embodiment of this application;

[0088] Figure 49A yes Figure 48 A schematic diagram of a partial cross-sectional structure along AA;

[0089] Figure 49B This is a schematic diagram of the structure of the first support in one embodiment of this application;

[0090] Figure 49C This is a simplified light emission diagram of one embodiment of this application;

[0091] Figure 50 This is a three-dimensional structural schematic diagram of an LED lighting fixture according to another embodiment of this application;

[0092] Figure 51A This is an exploded structural diagram of an LED lighting fixture from one perspective in another embodiment of this application;

[0093] Figure 51B This is an exploded structural diagram of an LED lighting fixture from another perspective in another embodiment of this application;

[0094] Figure 51C This is an exploded view of the LED lighting fixture after the support unit has been removed, according to another embodiment of this application.

[0095] Figure 51D This is an exploded structural diagram of the LED lighting fixture in another embodiment of this application, showing the other components from another perspective after the support unit has been removed;

[0096] Figure 52 This is a front view of an LED lighting fixture according to another embodiment of this application;

[0097] Figure 53 yes Figure 52 A schematic diagram of a partial cross-sectional structure along BB;

[0098] Figure 54 This is a perspective view of an LED lighting fixture according to an embodiment of this application;

[0099] Figure 55 This is an exploded structural diagram of an LED lighting fixture according to an embodiment of this application;

[0100] Figure 56 for Figure 55 A magnified view of a portion of point a;

[0101] Figure 57 for Figure 55 A magnified view of a portion at point b in the middle;

[0102] Figure 58 This is a cross-sectional three-dimensional structural diagram of an LED lighting fixture according to an embodiment of this application;

[0103] Figure 59 for Figure 58 A magnified view of a portion of point c in the middle;

[0104] Figure 60A This is a cross-sectional schematic diagram of an LED lighting fixture according to an embodiment of this application;

[0105] Figure 60B This is a schematic diagram of the light emission angle coverage range in one embodiment of this application;

[0106] Figure 60C This is another schematic diagram of the light emission angle coverage range in one embodiment of this application;

[0107] Figure 60D This is another schematic diagram of the light emission angle coverage range in one embodiment of this application;

[0108] Figure 61 This is a side view of the chassis component in an embodiment of this application;

[0109] Figure 62 This is a three-dimensional structural diagram of another embodiment of this application;

[0110] Figure 63A This is a schematic diagram of the surface brightness of the lampshade in a square lampshade state according to one embodiment of this application;

[0111] Figure 63B This is a schematic diagram of the illuminance of the illuminated surface at 2.5m in the case of a square lampshade in one embodiment of this application;

[0112] Figure 63C This is a schematic diagram of the light distribution curve in the square lampshade state according to an embodiment of this application;

[0113] Figure 64A This is a schematic diagram of the surface brightness of the lampshade in the arc-shaped lampshade state according to one embodiment of this application;

[0114] Figure 64B This is a schematic diagram of the illuminance of the illuminated surface at 2.5m in the case of an arc-shaped lampshade in one embodiment of this application;

[0115] Figure 64C This is a schematic diagram of the light distribution curve in the arc-shaped lampshade state according to an embodiment of this application;

[0116] Figure 65 This is a front view of an LED lighting fixture according to one embodiment of this application;

[0117] Figure 66 This is a schematic diagram of the rear of an LED lighting fixture according to one embodiment of this application;

[0118] Figure 67 This is an exploded view of the front of an LED lighting fixture according to an embodiment of this application;

[0119] Figure 68 This is a schematic diagram of the structure after the base plate and the diffuser 222 are combined in this embodiment of the present application;

[0120] Figure 69 This is a schematic diagram of the structure of the base plate and the diffuser combined in one embodiment of this application from another perspective.

[0121] Figure 70 This is a schematic diagram of the light-emitting unit disposed in the reinforcing structure in one embodiment of this application;

[0122] Figure 71 The diagram shown is a structural schematic of an LED lighting fixture according to an embodiment of this application.

[0123] Figure 72The diagram shown is an exploded view of an LED lighting fixture 100 according to an embodiment of this application.

[0124] Figure 73 The diagram shown is a cross-sectional view of an optical component according to an embodiment of this application.

[0125] Figure 74 The image shown is a schematic diagram of the rear of an LED lighting fixture according to one embodiment of this application;

[0126] Figure 75 The image shown is a front view of an LED lighting fixture according to another embodiment of this application;

[0127] Figure 76 The diagram shown is a rear view of an LED lighting fixture according to another embodiment of this application;

[0128] Figure 77 The diagram shown is a structural schematic of the chassis in one embodiment of this application;

[0129] Figure 78 Shown is an exploded view of an LED lighting fixture according to an embodiment of this application;

[0130] Figure 79 The image shown is a cross-sectional view of an LED lighting fixture along the direction parallel to the sidewall in one embodiment of this application.

[0131] Figure 80 This application is displayed. Figure 79 The image shown is a magnified view of part E in the image.

[0132] Figure 81 The diagram shown is a schematic representation of a second light source in one embodiment of this application.

[0133] Figure 82 This is a front view of an embodiment of an LED lighting fixture according to another embodiment of this application;

[0134] Figure 83 This is a rear view of an embodiment of an LED lighting fixture according to another embodiment of this application;

[0135] Figure 84 This is an exploded view of an LED lighting fixture according to an embodiment of this application;

[0136] Figure 85 for Figure 84 Enlarged view of point F in the image;

[0137] Figure 86 for Figure 84 Enlarged view of point G in the image;

[0138] Figure 87 This is a schematic diagram with the diffuser removed in one embodiment of this application.

[0139] Component designation: 100, LED lighting fixtures;

[0140] 1. Support unit; 11. Base; 111. Base plate; 1111. Base plate mounting part; 112 (112'), first base side wall; 113. Second base side wall; 114. Reinforcing structure; 12. Back plate; 121. Light-emitting curved surface; 122. Joint; 123. Protrusion; 124. Connecting part; 13. Side wall; 14. Support structure; 141. First mounting surface; 142. Second mounting surface; 15. Mounting hole; 16. Reinforcing rib;

[0141] 2. Optoelectronic module; 21. Light-emitting unit; 201. Light source board; 202. Groove; 210. First bracket; 2101. Inner bracket; 2102. Outer bracket; 211. First light-emitting component; 211' (212”), first light-emitting component; 2111 (2111'), first circuit board; 2112. First light-emitting body; 2112', first light-emitting body; 2112”, first light-emitting body; 212. Second light-emitting component; 212' (2 12”), second light-emitting component; 2121, second circuit board; 2122, second light-emitting body; 213, third light-emitting component; 2131, third circuit board; 2132, third light-emitting body; 22, light processing unit; 220, second bracket; 221, beam control component; 2211, sawtooth lens; 22111, base surface; 22112, sawtooth; 2212, TIR lens; 2213, reflective structure; 22131, first reflector Plate; 22132, Second reflector; 222, Diffuser; 2221, First diffuser; 22210, Diffuser end cap; 2222, Second diffuser; 2223, Third diffuser; 2224, Fourth diffuser; 2225, Receiving cavity; 2226, Limiting component; 2227, Striped structure; 22231, Connecting structure; 22232, Cover structure; 223, Light-shielding assembly; 2231, Light-shielding part; 2232, Frame part; 224. First optical component; 225. Second optical component; 2251. Reflector; 22511. Connecting part; 225110. First insertion slot; 226. Third optical component; 23. Light shield; 2311. Lower insertion slot; 24. Suspension part; 25. Strip lens; 250. Lamp strip cavity; 26. Mounting bracket; 261. First mounting base; 262. Second mounting base; 2621. First bending surface; 2622. Second bending surface;

[0142] 3. Power module; 31. Power circuit board; 32. Primary power supply; 33. Junction board; 34. Emergency power module; 341. Emergency power supply; 342. Energy storage battery; 343. Emergency test switch; 344. Emergency indicator light; 35. Power box; 36. Junction box;

[0143] 4. Outer frame;

[0144] 5. Hanging support components;

[0145] 6. Sensing device; Detailed Implementation

[0146] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0147] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in module or unit composition, electrical and operational aspects may be made without departing from the spirit and scope of this disclosure. The following detailed description should not be considered limiting, and the scope of the embodiments of the present application is defined solely by the claims of the published patents. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present application.

[0148] It will be understood that although the terms first, second, etc., may be used herein to describe various elements or parameters in some instances, these elements or parameters should not be limited by these terms. These terms are used only to distinguish one element or parameter from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the various described embodiments. Both the first element and the second element are describing an element, but they are not the same element unless the context otherwise clearly indicates otherwise. The terms “or” and “and / or” as used herein are to be interpreted inclusively, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means any of the following: A; B; C; A and B; A and C; B and C; A, B, and C. Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0149] It will be understood that when an element, such as a layer, region, or substrate, is referred to as being "on" another element or extending "on" another element, the element may be directly on or directly extending onto the other element, or intermediate elements may exist. Conversely, when an element is referred to as being "directly on" another element or "directly extending onto" another element, no intermediate elements exist. It will also be understood that when an element is referred to as being "connected" or "attached" to another element, it may be directly connected or attached to the other element, or intermediate elements may exist. Conversely, when an element is referred to as being "directly connected" or "directly attached" to another element, no intermediate elements exist.

[0150] Relative terms such as “below,” “above,” “upper,” “lower,” “horizontal,” or “vertical” may be used herein to describe the relationship between one element, layer, or region and another element, layer, or region illustrated in the figures. It will be understood that these terms are intended to cover different device orientations other than those depicted in the figures. In this application, “vertical,” “horizontal,” and “parallel” are defined as including cases within ±10% of their standard definitions. For example, vertical typically refers to an angle of 90 degrees relative to a reference line, but in this application, vertical refers to cases including those within 80 to 100 degrees.

[0151] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. When used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that, when used herein, the terms “comprising,” “including,” “containing,” and / or “comprising” designate the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0152] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It will also be understood that terms used herein should be interpreted as having the meaning consistent with their meaning in the context of this specification and the relevant field, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein. For example, the term "support" used in describing some embodiments may also be understood as "support".

[0153] Unless otherwise explicitly stated, comparative quantitative terms (such as “less than” and “greater than”) are intended to encompass the concept of equality. As an example, “less than” can mean not only “less than” in the strictest mathematical sense, but also “less than or equal to”.

[0154] This application discloses an LED lighting fixture in some embodiments, which can be suspended or fixedly installed to a ceiling or suspended ceiling. Depending on the application, the LED lighting fixture disclosed in this application may also be referred to as a flat panel light, pendant light, recessed light, concave light, recessed light, or ceiling light, etc.

[0155] Please see Figures 1 to 3 , Figure 23 ,as well as Figure 36 , Figure 1The image shown is a front view schematic diagram of an LED lighting fixture according to one embodiment of this application. Figure 2 The diagram shown is a left-side view of an LED lighting fixture according to one embodiment of this application. Figure 3 , Figure 23 ,as well as Figure 36 The figures show a three-dimensional structural schematic diagram of an LED lighting fixture 100 according to one embodiment of this application. As shown, the LED lighting fixture includes a support unit 1 and a photoelectric module 2 connected to the support unit 1. In some examples, the photoelectric module 2 is connected to the support unit 1 in a replaceable (detachable) manner, allowing for quick removal and replacement of the LED lighting fixture 100. If the photoelectric module 2 is damaged, only the photoelectric module 2 can be replaced, reducing replacement costs and maintenance time compared to replacing the entire lamp. Alternatively, the photoelectric module 2 can be connected to the support unit 1 in a non-detachable manner, meaning that once fixed to the support unit 1, it cannot be easily removed. In other examples, the photoelectric module 2 can be configured for quick installation with the support unit 1, after which it cannot be easily removed from the support unit 1. Therefore, during packaging and transportation, the photoelectric module 2 and the support unit 1 can be packaged and transported separately, saving packaging and transportation costs, while during sale or use, the photoelectric module 2 and the support unit 1 can be quickly installed.

[0156] Please refer to 1 to Figure 4 , Figure 4 The figure shows a three-dimensional structural schematic diagram of a support unit in one embodiment of this application. As shown, the support unit 1 includes a base 11. Figure 2 and Figure 4 In the illustrated embodiment, the support unit 1 further includes a back plate 12, which is disposed around the base 11. Alternatively, it can be described as the back plate 12 extending outward from the base 11. In some embodiments, this back plate may also be referred to as a sidewall of the LED lighting fixture. The back plate 12 is disposed around the base 11 and forms a receiving space with the base 11. See also Figure 2 , Figure 5 , Figure 9 A rectangular coordinate system is established, with the plane containing the base plate 111 as the XY plane, and the direction perpendicular to the base plate as the Z-axis. In this embodiment, the direction extending along the first light-emitting component 211 is the X-axis, and the direction perpendicular to the first light-emitting component 211 is the Y-axis. The back plate 12 can be tilted or horizontally arranged relative to the base 11. For example, the tilt angle between the back plate 12 and the base 11 (e.g., ...) Figure 2 The angle (in the middle) can be set from 0 degrees to 90 degrees, such as Figure 2As shown, the tilt angle refers to the angle α between the horizontal cross-section X of the back plate 12 and the base 11. In a more specific example, the tilt angle between the back plate 12 and the base 11 can be 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, 20 degrees, 21 degrees, 22 degrees, 23 degrees, 24 degrees, 25 degrees, 26 degrees, 27 degrees, 28 degrees, 29 degrees, or 30 degrees, etc. Preferably, it can be set to 20 degrees.

[0157] In one embodiment, the base 11 is located in the middle region, and the area of ​​the front surface of the support unit 1 covered by the base 11 accounts for 15% to 50% of the front surface area of ​​the support unit 1 (for example, approximately 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 30%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, or 50%). Here, the front surface area refers to the projected area perpendicular to the direction of the support unit 1 (wherein, the direction perpendicular to the support unit 1 is defined as the horizontal direction, such as...). Figure 2 (The mid-section X is the horizontal section). Considering that in some embodiments, the photoelectric module 2 includes at least a light-emitting unit disposed on the base 11, it can also be understood that the front area used for the light-emitting region in the support unit 1 accounts for 15% to 50% of the front area of ​​the support unit 1. More specifically, considering material costs and aesthetics, the area of ​​the base 11 covering the front area of ​​the support unit 1 is set to account for approximately 33.3% of the front area of ​​the support unit 1 (33.3% can be understood as an approximation of 1 / 3).

[0158] Please see Figure 1 , Figure 3 , Figure 5 , Figure 24A ,as well as Figure 37 , Figure 5 , Figure 24A ,as well as Figure 37 The following are schematic diagrams showing the disassembled structure of an LED lighting fixture in one embodiment of this application, as follows: Figure 5As shown, the optoelectronic module 2 includes a light-emitting unit 21 and a light-processing unit 22. The light-emitting unit 21 emits light for illumination, and the light-processing unit 22 processes the light emitted by the light-emitting unit 21 before emitting it. For example, the light-processing unit 22 can change the light emission path of the light-emitting unit 21, i.e., the light-processing unit 22 is disposed on the light emission path of the light-emitting unit 21. The base 11 of the support unit 1 provides at least a mounting position for the light-emitting unit 21; in other words, at least a portion of the light-emitting unit 21 is disposed on the base 11 or in the receiving space formed by the base 11. In this application, the side of the support unit 1 used to house the light-emitting unit 21 is defined as the front side, and the other side opposite the front side is defined as the back side. The base 11 can also provide a mounting position for the light-processing unit 22; in other words, the light-processing unit 22 can also be disposed on the base 11 or in the receiving space formed by the base 11. Of course, in other embodiments, the base 11 can also provide mounting positions or receiving spaces for other components, units, modules, assemblies, or components in the optoelectronic module 2. It should be understood that... Figure 5 As just one example of a split structure, in some embodiments, the photoelectric module 2 may not have a light processing unit 22.

[0159] Please see Figure 6 and Figure 7 , Figure 6 The diagram shown is a three-dimensional structural schematic of the cooperation between the light-emitting unit and the support unit in one embodiment of this application. Figure 7 The figure shows a three-dimensional structural schematic diagram of the light-emitting unit in one embodiment of this application. As shown, the base 11 of the support unit 1 has a base plate 111. The light-emitting unit 21 includes at least one first light-emitting component 211, which is disposed on the base plate 111. The first light-emitting component 211 may include a first circuit board 2111 and at least one first light-emitting element 2112 disposed on the first circuit board. The first light-emitting element 2112 may be an LED bead or other types of LED light-emitting units. The first circuit board 2111 is attached (e.g., directly attached or attached through an intermediate medium) to the base plate 111. Multiple first light-emitting elements 2112 may be provided, and these multiple first light-emitting elements 2112 are evenly or partially distributed on the first circuit board 2111. The 2112 on adjacent first light-emitting components 211 may be aligned or staggered. Figure 6 and Figure 7 In this example, 24 first light-emitting elements 2112 are used. Those skilled in the art can also set any number of first light-emitting elements 2112 according to actual needs. In some embodiments, the first light-emitting component 211 can be configured as at least two groups, that is, the light-emitting unit 21 has at least two groups of light-emitting components. "At least two groups" can be understood as two or more groups, each group arranged in parallel on the base plate 111. For example, the first light-emitting component 211 can be configured as 2 groups, 3 groups, 4 groups, 5 groups, or 6 groups, etc. Figure 6 and Figure 7 In the illustrated embodiment, the first light-emitting component 211 is configured as four groups. Of course, in other embodiments, such as under the constraints of certain installation environments or lamp structures, the first light-emitting component 211 may be configured as only one group. In other words, those skilled in the art can select any number of groups to configure on the base plate 111 according to actual needs, inspired by the above embodiments of this application. In another embodiment, the spacing between the first light-emitting elements 2112 is at least two different types.

[0160] In another embodiment, the first light-emitting components 211 may be configured as at least two groups, and the adjacent first light-emitting components 211 are not parallel, that is, the extension lines of the side lengths of the adjacent first light-emitting components 211 intersect, or in other words, there are at least two types of spacing between the adjacent first light-emitting components 211.

[0161] Please see Figure 6 and Figure 8 , Figure 8 The figure shows the light pattern of the first light-emitting component in one embodiment of this application. As shown, the light pattern of the first light-emitting component 211 is characterized by the strongest light intensity at a 0-degree emission angle, and the light intensity decreases as the emission angle increases. For example, the light pattern distribution of the first light-emitting component 211 is a Lambertian light pattern or a near-Lambertian light pattern. In the example where the light-emitting unit 21 only includes the first light-emitting component 211, the light pattern distribution of the LED lighting fixture is also the light pattern distribution of the first light-emitting component 211. This will result in uneven illumination of the LED lighting fixture, with higher luminous intensity in the area directly below the first light-emitting component 211. When applied to a space that needs illumination, this will cause a phenomenon in the space where the central area of ​​the LED lighting fixture is brighter and the surrounding area is darker, resulting in a central light spot phenomenon.

[0162] The area directly below the first light-emitting component 211, as mentioned here and thereafter, can be understood as the area of ​​the preset beam angle of the first light-emitting component 211. In some examples, the preset beam angle can be set from 10 degrees to 60 degrees (for example, approximately 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 degrees). The preset beam angle can be 40 degrees, 41 degrees, 42 degrees, 43 degrees, 44 degrees, 45 degrees, 46 degrees, 47 degrees, 48 ​​degrees, 49 degrees, 50 degrees, 51 degrees, 52 degrees, 53 degrees, 54 degrees, 55 degrees, 56 degrees, 57 degrees, 58 degrees, 59 degrees, or 20 degrees. Taking a preset beam angle of 10 degrees as an example, the area directly below the first light-emitting component 211 refers to the area ranging from -5 degrees to 5 degrees with the beam centerline (i.e., the main axis of maximum light intensity) as the 0-degree angle. In some examples, the preset beam angle can also be set with light intensity as a reference. The preset beam angle can be set to the angle between 20% and 60% of the maximum light intensity. Taking an angle of 20% of the maximum light intensity as an example, the area directly below the first light-emitting component 211 refers to the angle area between two beams with light intensity equal to 20% of the maximum light intensity. It should be understood that in the embodiment where the first light-emitting component 211 is disposed in the middle area of ​​the LED lighting fixture, the area directly below the first light-emitting component 211 can also be referred to as the middle area of ​​the LED lighting fixture or the area directly below the LED lighting fixture, which will not be described further hereafter.

[0163] The peripheral area (e.g., left, right, front, and rear sides, also referred to as the surrounding area) of the first light-emitting component 211 mentioned herein and subsequently can be understood as the area surrounding the area directly below the first light-emitting component 211. In this application, the peripheral area and the area directly below are allowed to overlap within a certain range at their junctions. Relative to the position of the first light-emitting component 211, the peripheral area of ​​the first light-emitting component 211 includes: a front area, a rear area, a left area, a right area, etc. When referring to a specific location within the peripheral area, this application uses directional terms (e.g., front, rear, left, and right sides) in some embodiments. When not specifically indicating a particular location, this application may directly use the term "peripheral area" in some embodiments. It should be understood that in embodiments where the first light-emitting component 211 is disposed in the middle area of ​​an LED lighting fixture, the peripheral area of ​​the first light-emitting component 211 can also be referred to as the peripheral area of ​​the LED lighting fixture, which will not be elaborated further hereafter.

[0164] Given that Figure 8As described above, regarding the central light spot situation, in some embodiments, the light-emitting unit 21 may further include a second light-emitting component 212, aiming to design the structure and / or parameters of the support unit and / or photoelectric module in the LED lighting fixture so that the light pattern distribution of the first light-emitting component 211 and the second light-emitting component 212 is combined to jointly form the light pattern distribution of the LED lighting fixture, thereby eliminating the situation described above. Figure 6 , Figure 8 The central light spot phenomenon described herein greatly improves the illumination uniformity of LED lighting fixtures. More specifically, in some embodiments, the relative positions of the first and second light-emitting components can also diversify the light emission angles. That is, by setting at least two light-emitting components, and at least two light-emitting components having at least two light emission angles, the light-emitting unit 21 can have at least two light emission angles, making the light pattern distribution of the LED lighting fixture formed by the combination of the two light pattern distributions more uniform, for example, a batwing light pattern or a near-batwing light pattern. Among them, the batwing light pattern refers to the light pattern distribution spreading out to both sides like a bat's wing, showing that the light intensity in the middle area (i.e., the area with a smaller emission angle) is slightly lower, and the light intensity in the two side areas (i.e., the area with a larger emission angle) is slightly higher. The near-batwing light pattern refers to a non-ideal batwing light pattern distribution. Although its light pattern distribution does not show the standard situation of slightly higher light intensity on both sides, the overall light pattern distribution shows that the difference in light intensity between the middle and the sides is not large, or in other words, the difference is within the acceptable range of uniformity. Batwing or near-batwing light patterns can help luminaires achieve highly uniform lighting and allow for greater spacing between two luminaires.

[0165] In one embodiment, please refer to Figure 5 , Figure 7 ,and Figure 9 , Figure 9This is a three-dimensional structural diagram of the cooperation between the light-emitting unit and the support unit in one embodiment of this application. The second light-emitting component 212 is disposed on the base 11 and is disposed around the periphery of the first light-emitting component 211, and is inclined relative to the first light-emitting component 211. Here, the periphery of the first light-emitting component 211 refers to the periphery of the area occupied by the first light-emitting component 211. When multiple sets of first light-emitting components 211 are configured, the periphery refers to the periphery of the area occupied by each first light-emitting component 211 as a whole, such as the periphery of the base plate 111. With reference to the light emission direction, the inclined arrangement of the second light-emitting component 212 relative to the first light-emitting component 211 means that the light-emitting side of the second light-emitting component 212 is tilted towards the light-emitting side of the first light-emitting component 211, or in other words, the optical axes (or extensions of the optical axes) of the first and second light-emitting components 211 intersect. In other words, the light emitted by the second light-emitting component 212 is mainly distributed in the periphery of the first light-emitting component 211. That is, if the first light-emitting component 211 contributes to the light intensity of the central area of ​​the LED lighting fixture, then the second light-emitting component 212 mainly contributes to the light intensity of the peripheral area of ​​the LED lighting fixture, thereby greatly improving the uniformity of the light intensity distribution of the LED lighting fixture and avoiding the phenomenon of a central light spot. Of course, in other embodiments, the first light-emitting component 211 and the second light-emitting component 212 can also be arranged vertically spaced or closely attached.

[0166] like Figure 7 As shown, the second light-emitting component 212 may include a second circuit board 2121 and at least one second light-emitting element 2122 disposed on the second circuit board 2121. The second light-emitting element 2122 may be an LED bead or other type of LED light-emitting unit. The second circuit board 2121 is mounted (e.g., directly mounted or mounted through an intermediate medium) on the base 11. Multiple second light-emitting elements 2122 may be provided, and the multiple second light-emitting elements 2122 are evenly distributed on the second circuit board 2121. Figure 7 and Figure 9 In this example, 24 first light-emitting elements 2122 are used. Those skilled in the art can also set any number of second light-emitting elements 2122 according to actual needs. In some embodiments, the second light-emitting components 212 can also be set as multiple groups, with each group surrounding and inclined relative to the first light-emitting component 211 on the periphery of the first light-emitting component 211.

[0167] In another embodiment, the second light emitter 2122 may be non-uniformly disposed on the second circuit board 2121. The second light emitters on adjacent second light emitter components 212 are staggered.

[0168] In some embodiments, the second light-emitting component 212 can be tilted relative to the first light-emitting component 211 by making the mounting surface of the second light-emitting component 212 form a certain angle with the mounting surface of the first light-emitting component 211.

[0169] Please see Figure 2 , Figures 9 to 11 , Figure 10 This application is displayed. Figure 9 A partial enlarged view of the base and light-emitting unit in the illustrated embodiment. Figure 11 The figure shows a cross-sectional view of the LED lighting fixture along the X-axis in one embodiment of this application. As shown, the base 11 further includes a first base sidewall 112. That is, the base 11 has a base plate 111 and a first base sidewall 112. The first base sidewall 112 extends from the edge of the base plate 111 toward the light-emitting direction (i.e., the front direction of the support unit 1). The first base sidewall 112 has a first tilt angle β relative to the base plate 111 and is disposed around the base plate 111. A first light-emitting component 211 is disposed on the base plate 111 (i.e., the base plate 111 can be understood as the mounting surface of the first light-emitting component 211), and a second light-emitting component 212 is disposed on the first base sidewall 112 (i.e., the first base sidewall 112 can be understood as the mounting surface of the second light-emitting component 212), such that the tilt angle of the second light-emitting component 212 relative to the first light-emitting component is the first tilt angle β. The first base sidewall 112 can be configured in multiple groups, and the second light-emitting component 212 can also be configured in multiple groups corresponding to the number of first base sidewalls 112, so as to emit light in different directions. For example, the base plate 111 of the base 11 is configured as a polygon, and the base 11 has multiple groups of first base sidewalls 112 corresponding to the number of sides of the polygon, with a second light-emitting component 212 correspondingly disposed on each group of first base sidewalls 112. Figures 9 to 11 In the embodiment shown, the base plate 111 of the base 11 is quadrilateral, and the base 11 has 4 sets of first base sidewalls 112. A second light-emitting component 212 is correspondingly arranged on each set of first base sidewalls 112. The base plate 111 and the first base sidewalls 112 form a base plate accommodating space, and at least a portion of the optoelectronic module 2 is disposed in the accommodating space.

[0170] To ensure the uniformity of light intensity distribution in the LED lighting fixture 100, the first tilt angle β of the first base sidewall 112 relative to the base plate 111 is set to 15 to 45 degrees (e.g., approximately 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, or 45 degrees). If it is less than 15 degrees, the first light-emitting component 211 and the second light-emitting component 212 are approximately on the same plane (e.g., Figure 11 If the light is emitted in a horizontal cross-section (X), the light emitted by the second light-emitting component 212 and the first light-emitting component 211 will be relatively dispersed. For example, the light emitted by the second light-emitting component 212 may be mainly distributed on one side that is a certain distance away from the light emitted by the first light-emitting component 211. This not only fails to improve the uniformity of illumination of the LED lighting fixture, but may even cause multiple light spots to appear in the LED lighting fixture during illumination, exacerbating the unevenness of illumination. If the first tilt angle β is greater than 45 degrees, then in one case (the difference between the first tilt angle β and 45 degrees is too large, such as greater than 60 degrees), most of the light emitted by the second light-emitting component 212 will be directed towards the receiving space formed by the support unit 1. In this case, it is easily blocked by some parts, units, modules, components, etc. set on the support unit 1. For example, in such cases... Figure 5 As shown in the example where a light processing unit 22 is provided on the light-emitting unit 21, most of the light emitted by the second light-emitting component 212 is blocked by a portion of the components in the light processing unit 22 and emitted after processing by the light processing unit 22. In another case (where the first tilt angle β is not significantly different from 45 degrees, for example, less than 60 degrees), most of the light emitted by the two light-emitting components (211, 212) will be concentrated in the same area, which will fail to enhance the illumination uniformity of the LED lighting fixture and make it difficult to form a batwing-shaped or near-batwing-shaped light pattern. In this embodiment, more preferably, the first tilt angle β can be set to 30 to 45 degrees. Setting the first tilt angle β within this range allows the LED lighting fixture to present a batwing-shaped or near-batwing-shaped light pattern. Furthermore, in a specific example, the first tilt angle β can be set to 20 degrees.

[0171] It should be noted that in embodiments with multiple sets of first base sidewalls 112, each set of first base sidewalls 112 extends outwards towards the periphery of the base plate 111, such as... Figure 10 and Figure 11As shown, the first base sidewall 112 has four sets, which extend outwards from the base plate 111 to the front, back, left, and right, respectively, and form a first tilt angle β with the base plate 111. The positions of the four sets of first base sidewalls 112 are defined as front, back, left, and right. From the perspective of the figure, the position of the first base sidewall 112 located on the upper side is defined as front, the position of the first base sidewall 112 located on the lower side is defined as back, the position of the first base sidewall 112 located on the left side is defined as left, and the position of the first base sidewall 112 located on the right side is defined as right. It should be understood that the figure is only an example, and each set of first base sidewalls 112 does not necessarily need to have the same first tilt angle β; it is sufficient that the first tilt angle β of each set of first base sidewalls 112 relative to the base plate 111 is between 15 degrees and 45 degrees.

[0172] Please see Figure 12 and Figure 13 , Figure 12 This application is displayed as being in Figure 11 The illustrated embodiment shows a schematic diagram of the light emission from an LED lighting fixture. Figure 13 This application is displayed as being in Figure 11 The light pattern diagram of the LED lighting fixture in the illustrated embodiment is provided for ease of description and illustration. Figure 12 The light emission of an LED lighting fixture is illustrated using the second light-emitting component 212 mounted on the left sidewall 112 of the first base and a set of first light-emitting components 211 attached to the middle of the base plate 111 as examples. The principles of other sets of first light-emitting components 211 and second light-emitting components 212 are similar and will not be described in detail here. Figure 13 This diagram illustrates the light pattern formed by the combination of all the first light-emitting components 211 and the second light-emitting components 212. As shown, the light emitted from the first light-emitting component 211 is mainly concentrated in the area directly below it, which in some examples is also referred to as the middle area of ​​the LED lighting fixture. The second light-emitting component 212, located on the left, is tilted relative to the first light-emitting component 211, so its emitted light is mainly distributed in the left-side area of ​​the first light-emitting component 211. Similarly, the light emitted from the second light-emitting component 212 on the right should be mainly distributed in the right-side area of ​​the first light-emitting component 211, the light emitted from the second light-emitting component 212 on the front should be mainly distributed in the front area of ​​the first light-emitting component 211, and the light emitted from the second light-emitting component 212 on the rear should be mainly distributed in the rear area of ​​the first light-emitting component 211. Thus, the light emitted by the second light-emitting component 212 is mainly distributed in the peripheral area of ​​the first light-emitting component 211. Figure 12 and Figure 13As shown, the first light-emitting component 211 contributes the light intensity of the central area of ​​the LED lighting fixture, while the second light-emitting component 212 mainly contributes the light intensity of the peripheral area of ​​the LED lighting fixture. As a result, in the light pattern diagram of the LED lighting fixture, the difference in light intensity between the central and peripheral areas is not large (for example, within the range of -40 degrees to 40 degrees, the difference in light intensity is within the acceptable range of uniformity), which greatly improves the uniformity of the light intensity distribution of the LED lighting fixture and avoids the phenomenon of central light spot.

[0173] In some embodiments, as described above, the optoelectronic module 2 may further include a light processing unit 22, which processes the light emitted from the light-emitting unit 21. The light processing unit 22 is disposed on the base 11. To provide suitable accommodating space or position, in some embodiments, such as... Figures 9 to 11 As shown, the base 11 further has a second base sidewall 113, which is connected to the first base sidewall 112 and has a second tilt angle γ relative to the first base sidewall 112. In other words, the second base sidewall 113 is formed by bending the first base sidewall 112 towards the light emission direction (also referred to as the front direction of the support unit) and continuing to extend. Figures 9 to 11 In the illustrated embodiment, the number of second base sidewalls 113 is the same as the number of first base sidewalls 112. That is, the base plate 111 of the base 11 is set as a quadrilateral, the first base sidewalls 112 are set as four sets corresponding to the four sides of the quadrilateral, and the second base sidewalls 113 also have four sets. Of course, those skilled in the art can also design the number of second base sidewalls 113 to be different from that of the first base sidewalls 112 according to the actual shape design, and this application does not impose any restrictions here.

[0174] It should be noted that, in some embodiments, the second base sidewall 113 can also serve as a reflective surface for the light emitted from the second light-emitting component 212, so as to reflect the light emitted from the second light-emitting component 212 at a larger angle back to the peripheral area of ​​the light emitted from the first light-emitting component 211, such as... Figure 12 As shown, light m is formed by the light emitted from the second light-emitting component 112 on the left side being reflected after being projected onto the side wall 113 of the second base. Thus, the side wall 113 of the second base enables the light emitted from the second light-emitting component 212 to be more concentrated in the peripheral area of ​​the light emitted by the first light-emitting component 211, thereby improving the uniformity of light output of the LED lighting fixture.

[0175] In one embodiment, the light processing unit 22 includes a beam control component, which is used to change the light emission path of the light-emitting unit to achieve a better light emission effect. In a specific example, the beam control component is disposed on the light emission side of the second light-emitting component 212 and is used to change the path of at least part of the light emitted by the second light-emitting component 212, so that the light emitted by the second light-emitting component 212 is mainly distributed in the peripheral area of ​​the first light-emitting component 211. For example, the beam control component can change the light emitted by the second light-emitting component 212 that is directed towards the area directly below the first light-emitting component 211 or the middle area of ​​the LED lighting fixture to be directed towards the peripheral area of ​​the first light-emitting component 211 or the peripheral area of ​​the LED lighting fixture. It can also concentrate light emitted by the second light-emitting component 212 at an excessively large angle into the peripheral area directed towards the first light-emitting component 211, thereby enabling the LED lighting fixture to form a batwing light pattern or a near-batwing light pattern, further improving the light emission uniformity of the LED lighting fixture.

[0176] Please see Figure 14 and Figure 15 , Figure 14 The diagram shown is a cross-sectional view of an LED lighting fixture including a beam control component along the X-axis in one embodiment of this application. Figure 15 This application is displayed as being in Figure 14 A partial enlarged view of part A in the illustrated embodiment shows that the light processing unit 22 includes a beam control component 221, which includes a sawtooth lens 2211. The sawtooth lens 2211 is disposed on the light-emitting side of the second light-emitting component 212, and the number of sets corresponding to the second light-emitting component 212 can be set. Figures 14 to 15 In the illustrated embodiment, there are four sets of sawtooth lenses 2211 corresponding to the number of second light-emitting components 212. The sawtooth lenses 2211 are arranged parallel to each of the second light-emitting components 212 (in some embodiments, it can also be understood that the sawtooth lenses 2211 are parallel to the side wall 112 of the first base). The sawtooth lenses 2211 are configured as elongated strips extending in the length direction of the second light-emitting components 212, so that the light emitted from each of the second light-emitting elements of the second light-emitting components 212 can pass through the sawtooth lenses 2211, thereby changing the light emission path of the second light-emitting components 212.

[0177] The curved surfaces in the sawtooth lens 2211 face away from the first light-emitting component 211, and are used to refract part of the light emitted from the second light-emitting component 212, so that some of the light is output at a wider angle (greater than the original emission angle). This further ensures that the light emitted from the second light-emitting component 212 is distributed on both sides of the first light-emitting component 211, contributing almost nothing to the area directly below the first light-emitting component 211. For details, please refer to... Figure 15 and combined Figure 16 , Figure 16 This application is displayed as being in Figure 14 The light pattern diagram of the LED lighting fixture in the illustrated embodiment.

[0178] like Figure 15 To explain the working principle of the second light-emitting component 212 on the right, the sawtooth lens 2211 refracts part of the light emitted from the second light-emitting component 212 on the right into a wider angle output, thereby allowing the original light path to be projected onto the area directly below the first light-emitting component 211 (which can also be understood as the middle area of ​​the LED lighting fixture, such as...). Figure 16 Light rays (within the range of -10 degrees to 10 degrees) are refracted onto the left side region of the first light-emitting component 211 (e.g., ...). Figure 16 (within the range of -15 to -40 degrees Celsius), combined with Figure 16 As shown, the light emitted by the second light-emitting component 212 on the right is mainly distributed in the left region (e.g., Figure 16 The area between -15°C and -40°C and the right-hand area (e.g., Figure 16 Within the range of 15 to 40 degrees, similar to the second light-emitting component 212 on the right, the light emitted by the second light-emitting component 212 on the left is also mainly distributed on the left and right sides. The light pattern distribution of the second light-emitting components 212 on the left and right sides, combined with the light pattern distribution of the first light-emitting component 211, forms a bat wing light pattern.

[0179] It should be understood that, Figures 14 to 16 The following explanation uses only the second light-emitting components 212 on the left and right sides as examples. The working principle of the second light-emitting components 212 on the front and rear sides is similar to that on the left and right sides. After being acted upon by their respective sawtooth lenses 2211, the light emitted by the second light-emitting components 212 on the front and rear sides will be mainly distributed on the front and rear sides. Combined with the light pattern distribution of the first light-emitting component 211, the following can also be obtained: Figure 16 The bat wing light pattern is shown. Similarly, after the second light-emitting components 212 on the front, back, left, and right sides are acted upon by their respective sawtooth lenses 2211, the light emitted will mainly be concentrated on the front, back, left, and right sides, that is, around the light emitted by the first light-emitting component 211. The bat wing light pattern is also obtained by combining the light pattern distribution of the first light-emitting component 211, which will not be described in detail here.

[0180] In one embodiment, please refer to Figure 17 , Figure 17The diagram shows a serrated lens structure in one embodiment of this application. As shown, the serrated lens 2211 includes a base surface 22111 and a plurality (or at least one) of serrations 22112. The base surface 22111 has a certain thickness d, which can be set from 0.5 mm to 2 mm (for example, approximately 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, or 2 mm). Figures 14 to 15 In the illustrated embodiment, the thickness d is set to 1 mm. The serrations 22112 can be 6 to 9, each occupying a certain width k (e.g., 3 mm) of the base plate, extending upwards from the base surface 22111. Each serration 22112 is configured as a curved lens having a curved surface and a vertical surface. In some examples, the vertical surface height h of each serration 22112 can be set to the same value, for example, 2 mm to 5 mm (e.g., approximately 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm). (mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, or 5mm). In some examples, the vertical height h of each sawtooth 22112 can also be set to be different. For example, the difference in vertical height between two adjacent sawtooth 22112 is equal, and this height difference can be set to approximately 0.2mm to 0.4mm.

[0181] In embodiments where the sawtooth lens 2211 is disposed in an LED lighting fixture, for example, Figures 14 to 15 As shown, the curved surfaces of each sawtooth 22112 of the sawtooth lens 2211 face away from the first light-emitting component 211. In other embodiments, the curved surfaces of each sawtooth 22112 of the sawtooth lens 2211 are arranged facing closer to the first light-emitting component 211; please refer to [reference needed]. Figure 18 and Figure 19 , Figure 18 The diagram shown is a partial structural schematic of the sawtooth lens and the second light-emitting unit in one embodiment of this application. Figure 19 This application is displayed as being in Figure 18The light pattern diagram of the LED lighting fixture in the illustrated embodiment is shown in the figure. The curved surfaces of the sawtooth lens 22112 are arranged towards the direction close to the first light-emitting component 211. Due to the refraction of some light emitted from the second light-emitting component 212 on the right side by the sawtooth lens 2211, although light that might have been projected onto the area directly below the first light-emitting component 211 can be refracted to the right side of the first light-emitting component 211, it also refracts some light to the area directly below the first light-emitting component 211. Combined with… Figure 19 The light pattern diagram on the right shows that, as... Figure 18 Under the action of the sawtooth lenses 2211 arranged as shown, the light emitted by the second light-emitting component 212 is distributed on the left and right sides and directly below the first light-emitting component 211. That is, the second light-emitting component 212 not only contributes to the light intensity of the peripheral area of ​​the LED lighting fixture, but also contributes to the light intensity of the central area of ​​the LED lighting fixture. The second light-emitting component 212 on the left is similar to the second light-emitting component 212 on the right, and also contributes to the light intensity of the central area of ​​the LED lighting fixture. The light pattern distribution of the second light-emitting components 212 on the left and right sides, combined with the light pattern distribution of the first light-emitting component 211, forms a distribution as shown in the diagram. Figure 19 The light pattern diagrams corresponding to the left, center, and right light outputs shown are, as can be seen, non-ideal batwing light patterns, and do not achieve the uniformity required by the sawtooth lens 2211. Figure 14 and Figure 15 The effect of the arrangement shown.

[0182] It should be understood that, Figure 18 and Figure 19 Taking the second light-emitting components 212 on the left and right sides as an example, the working principle of the second light-emitting components 212 on the front and rear sides is similar to that on the left and right sides. After being acted upon by their respective sawtooth lenses 2211, the light emitted by the second light-emitting components 212 on the front and rear sides will be concentrated on the front and rear middle sides. Combined with the light pattern distribution of the first light-emitting component 211, it can also be obtained that... Figure 19 A similar light pattern diagram. Similarly, after the second light-emitting components 212 on the front, back, left, and right sides are acted upon by their respective sawtooth lenses 2211, the emitted light will be concentrated on the front, back, left, right, and center sides. Combined with the light pattern distribution of the first light-emitting component 211, a similar light pattern diagram can be obtained. Figure 19 Similar light pattern diagrams will not be described in detail here.

[0183] Please see Figure 20 and Figure 21 , Figure 20 The diagram shown is a cross-sectional view of an LED lighting fixture including a beam control component along the X-axis in one embodiment of this application. Figure 21 This application is displayed as being in Figure 20A partial enlarged view of part B in the illustrated embodiment shows that the light processing unit 22 includes a beam control component 221, which includes a TIR lens 2212 (also called a Total Internal Reflection lens). The TIR lens 2212 is disposed on the light-emitting side of the second light-emitting component 212, and the number of sets corresponding to the second light-emitting component 212 can be set. Figures 18 to 19 In the illustrated embodiment, there are four sets of TIR lenses 2212 corresponding to the number of second light-emitting components 212. The TIR lenses 2212 are arranged parallel to each of the second light-emitting components 212 (i.e., the TIR lenses 2212 are parallel to the sidewall 112 of the first base) to change the light emission path of the second light-emitting components 212.

[0184] The TIR lens 2212 is used to refract a portion of the light emitted from the second light-emitting component 212, so that some of the light is output at a narrower angle (smaller than the original emission angle). This further distributes the light emitted from the second light-emitting component 212 to the areas on both sides of the first light-emitting component, contributing almost nothing to the area directly below the first light-emitting component 211, or the central area of ​​the LED lighting fixture. For details, please refer to... Figure 21 and combined Figure 22 , Figure 22 This application is displayed as being in Figure 20 The light pattern diagram of the LED lighting fixture in the illustrated embodiment. Figure 21 As shown, the TIR lens 2212 refracts part of the light emitted from the second light-emitting component 212 on the right, causing it to be output at a narrower angle. This refracts the light that might have been projected onto the middle area of ​​the LED lighting fixture through its original light path to the right area. Figure 22 As shown, the light emitted by the second light-emitting component 212 on the right is mainly distributed in the left area of ​​the LED lighting fixture (e.g., Figure 22 The area between -15 and -20 degrees Celsius and the right side (e.g.) Figure 20 In the range of 15 to 25 degrees, similarly, the light emitted by the second light-emitting component 212 on the left side is also mainly concentrated on the left and right sides of the LED lighting fixture. The light pattern distribution of the second light-emitting component 212 on the left and right sides is combined with the light pattern distribution of the first light-emitting component 211 to form a bat wing light pattern.

[0185] It should be understood that, Figures 20 to 22 The following explanation uses only the second light-emitting components 212 on the left and right sides as examples. The working principle of the second light-emitting components 212 on the front and rear sides is similar to that on the left and right sides. After being acted upon by their respective TIR lenses 2212, the light emitted by the second light-emitting components 212 on the front and rear sides will be mainly concentrated on the front and rear sides. Combined with the light pattern distribution of the first light-emitting component 211, the following can also be obtained: Figure 22The light pattern shown is reminiscent of a bat wing. Similarly, after the second light-emitting components 212 on the front, back, left, and right sides are acted upon by their respective TIR lenses 2212, the emitted light will mainly concentrate on the four sides, that is, the peripheral area of ​​the first light-emitting component 211. Combined with the light pattern distribution of the first light-emitting component 211, a similar pattern is obtained. Figure 22 Similar bat-wing light patterns will not be described further here.

[0186] In one embodiment, the overall height of the TIR lens 2212 is set to approximately 6mm to 8mm, the diameter of its opening facing the second light-emitting component 212 is set to approximately 2mm to 6mm, and the diameter of its opening away from the second light-emitting component 212 is set to approximately 10mm to 12mm. Figure 20 and 21 In the embodiment shown, the height of the TIR lens is set to approximately 7.5 mm, the diameter of the opening on the side facing the second light-emitting component 212 is set to approximately 6 mm, and the diameter of the opening on the side away from the second light-emitting component 212 is set to approximately 12 mm. Those skilled in the art can select a suitable TIR lens according to the actual size requirements of the LED lighting fixture.

[0187] Please see Figures 23 to 29 , Figure 23 The diagram shown is a three-dimensional structural schematic of an LED lighting fixture according to one embodiment of this application. Figure 24A The diagram shown is a disassembled structural diagram of an LED lighting fixture according to one embodiment of this application. Figure 25 The diagram shown is a three-dimensional structural schematic of the light-emitting unit and beam control component cooperating with the support unit in one embodiment of this application. Figure 26 This application is displayed as being in Figure 25 A partial enlarged view of the base and optoelectronic module in the illustrated embodiment. Figure 27 The diagram shown is a cross-sectional view of an LED lighting fixture according to one embodiment of this application. Figure 28 This application is displayed as being in Figure 27 A partial enlarged view of part C in the illustrated embodiment. Figure 29 This application is displayed as being in Figure 27 The light pattern diagram of the LED lighting fixture in the illustrated embodiment is shown. As shown, the beam control component 221 includes a reflector structure 2213, which is disposed on the light-emitting side of the second light-emitting component 212. The reflector structure 2213 can be configured with a number of groups corresponding to the second light-emitting component 212. Figures 23 to 27 In the illustrated embodiment, the reflective structure 2213 has four sets corresponding to the number of second light-emitting components 212. The reflective structure 2213 is used to focus the light emitted from the second light-emitting components 212 to increase the light intensity in the peripheral region of the first light-emitting component 211. Specifically, please refer to... Figures 27 to 29The reflective structure 2213 reflects the light emitted from the second light-emitting component 212 that strikes it (i.e., light with a large emission angle), thereby achieving a focusing effect on the second light-emitting component 212 (for example, focusing the light emitted from the second light-emitting component 212 within the angle range formed by the reflective structure 2213, appearing as...). Figure 28 Along the angle between the dashed arrows of the two reflectors of the reflective structure 2213, the light intensity of the peripheral area of ​​the first light-emitting component 211 is further enhanced, thereby making the LED lighting fixture appear... Figure 29 The bat wing light pattern shown.

[0188] Please see Figures 25 to 30 , Figure 30 The diagram shows a three-dimensional structural illustration of the reflective structure and the second light-emitting component in one embodiment of this application. The reflective structure 2213 includes a first reflector 22131 and a second reflector 22132. The first reflector 22131 and the second reflector 22132 are respectively inclined towards both sides of the light emission center line L of the second light-emitting component 212. Figure 30 As shown in the example, the tilt angles of the first reflector 22131 and the second reflector 22132 relative to the light-emitting center line L of the second light-emitting component 212 are marked as θ. The first reflector 22131 and the second reflector 22132 can be respectively connected to the mounting surface of the second light-emitting component 212, such as the side wall 112 of the first base, or they can be respectively connected to the second circuit board 2121 (as shown in the example). Figure 30 As shown in the diagram, it is sufficient to position the first reflector 22131 and the second reflector 22132 on opposite sides of the second light-emitting element 2122. The first reflector 22131 and the second reflector 22132 respectively form two reflective surfaces for the light emitted from the second light-emitting component 212, thereby reflecting light rays with an emission angle exceeding the angle formed by the first reflector 22131 and the second reflector 22132. This concentrates the light emitted from the second light-emitting component 212, enhancing the light intensity in the peripheral region of the first light-emitting component 211.

[0189] In one embodiment, the tilt angle θ of the first reflector 22131 and the second reflector 22132 relative to the light emission center line L of the second light-emitting component 212 can be set to 15 degrees to 25 degrees (for example, approximately 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, or 25 degrees). That is, the light emitted by the second light-emitting component 212 is focused within the included angle range 2θ formed by the reflective structure 2213, which can be set to 30 degrees to 50 degrees. Setting the tilt angle θ within this range allows the LED lighting fixture to form a better batwing light pattern. Figure 31 The following example will be used for illustration. Figure 31The diagram shown is a light pattern diagram of an LED lighting fixture with reflectors configured at different tilt angles in one embodiment of this application. Figure 31 (a) shows the light pattern of an LED lighting fixture with the first tilt angle β set to 45 degrees and the tilt angle θ of the first reflector 22131 and the second reflector 22132 relative to the light emission center line L of the second light-emitting component 212 set to 15 degrees. At this time, the light pattern of the LED lighting fixture can also present a batwing light pattern with a better effect. If it is less than 15 degrees, the reflector structure 2213 will cause the light emitted by the second light-emitting component 212 to be over-concentrated, making it difficult to form a batwing light pattern. Figure 31 (b) shows the light pattern diagram of an LED lighting fixture with the first tilt angle β set to 45 degrees and the first reflector 22131 and the second reflector 22132 respectively tilted at an angle θ of 25 degrees relative to the light emission center line L of the second light-emitting component 212. Figure 31 (b) LED lighting fixtures can still produce a batwing-shaped light pattern, but compared to Figure 31 (a) The effect of its batwing light pattern begins to deteriorate. If the tilt angle θ continues to increase to more than 25 degrees, the light concentration of the reflective structure 2213 on the second light-emitting component 212 will be insufficient, and the light intensity contribution of the second light-emitting component 212 to the area surrounding the first light-emitting component 211 will be weakened, making it difficult to form a batwing light pattern with a better effect.

[0190] It should be understood that, Figure 30 and Figure 31 The above is just an example. The tilt angle θ of the first reflector 22131 and the second reflector 22132 relative to the light emission center line L of the second light-emitting component 212 does not necessarily need to be the same. It is sufficient that the tilt angle θ of the first reflector 22131 and the second reflector 22132 relative to the light emission center line L of the second light-emitting component 212 is between 15 degrees and 25 degrees.

[0191] It should be understood that, Figures 14 to 30 The serrated lens, TIR lens, and reflective structure shown are merely illustrative examples of the structures included in the beam control assembly. Those skilled in the art can select any suitable component or structure as part of the beam control assembly according to their needs, as long as it can change the path of some of the light emitted by the second light-emitting component so that the light emitted by the second light-emitting component is mainly distributed in the peripheral area of ​​the first light-emitting component. This application does not impose any limitations on this. Of course, in other embodiments, the beam control assembly may also include other components or structures to change the light emission path of the light-emitting unit and achieve better light emission performance.

[0192] As described in any of the foregoing embodiments, it can be seen that the light pattern distribution of any two relative sets of second light-emitting components 212 combined with the light pattern distribution of the first light-emitting component 211 can improve the illumination uniformity of the LED lighting fixture. Thus, users can selectively turn on or off any two relative sets or all of the second light-emitting components 212 by means of a control switch adapted to the LED lighting fixture according to actual lighting needs. In this way, energy can be saved while meeting user needs.

[0193] In some embodiments, the light pattern distribution formed by the LED lighting fixture is related to a first tilt angle β. Provided that the first tilt angle β satisfies the requirement of uniform light intensity distribution of the LED lighting fixture, the first tilt angle β is positively correlated with the light output angle of the LED lighting fixture. That is, the larger the first tilt angle β, the larger the light output angle of the LED lighting fixture. In embodiments or examples where the light pattern distribution of the LED lighting fixture is a batwing pattern or near-batwing pattern, that is, the larger the first tilt angle β, the wider the angle of the batwing pattern or near-batwing pattern. Please refer to [link / reference]. Figure 32 , Figure 32 The diagram shows the light pattern of LED lighting fixtures configured with different first tilt angles in one embodiment of this application, with the LED lighting fixtures configured as follows: Figures 23 to 27 Taking the structure shown as an example, Figure 32 (a) is the light pattern diagram with the first tilt angle β configured at 30 degrees. Figure 32 (b) The light pattern is configured with a first tilt angle β of 45 degrees. By comparison, we can see... Figure 32 (a) relative Figure 32 (b) In this case, the first tilt angle β is smaller, and the angle of the resulting bat wing light pattern is also narrower. Similarly, Figure 32 (b) relative Figure 32 (a) In this case, a larger first tilt angle β results in a wider angle for the bat wing-shaped light pattern formed. Therefore, those skilled in the art can adapt the first tilt angle β according to the actual application scenario.

[0194] In some embodiments, the uniformity of the light pattern distribution of the LED lighting fixture is further improved by setting the power supply characteristics of the first and second light-emitting components, for example, making the LED lighting fixture exhibit a better batwing light pattern or near-batwing light pattern. Here, power supply characteristics refer to the electrical characteristics supplied to the light-emitting unit. In embodiments or examples where the optoelectronic module further includes a power supply unit connected to an external power source or mains power to supply power to the light-emitting unit, power supply specifically refers to the electrical characteristics supplied to the light-emitting unit by the power supply unit. Power supply characteristics include, but are not limited to, any characteristic among supply voltage, supply current, and supply frequency. In one embodiment, the batwing light pattern effect formed by the LED lighting fixture is improved by configuring the power supply characteristics of the second and first light-emitting components to a preset ratio. For example, the supply voltages of the second and first light-emitting components can be configured to a preset ratio so that the LED lighting fixture forms a light pattern distribution with weaker light intensity in the central area and stronger light intensity in the peripheral area, i.e., a batwing light pattern. Furthermore, the preset ratio of the supply voltage of the second light-emitting component to the first light-emitting component can be configured to be 1.5 to 3 (for example, the ratio can be approximately 1.5, 2, 2.5, or 3), and more preferably, the preset ratio of the supply voltage of the second light-emitting component to the first light-emitting component can be configured to be 2 to 2.5.

[0195] To reduce glare from the lamps, in some embodiments, such as Figures 1 to 5 ,as well as Figures 23 to 28 ,as well as Figure 37 As shown, the light processing unit 22 further includes a diffuser 222, which is used to diffuse the light generated by the light-emitting unit 21 during operation. Further, in some embodiments, the diffuser 222 may also be formed as an outer cover of the light-emitting unit 21 to shield and protect it. Of course, in other embodiments, the outer cover of the light-emitting unit 22 may exist separately as part of the light processing unit 21; that is, the light processing unit 21 may also include multiple outer covers, such as a first outer cover and a second outer cover. This application does not impose any limitations on this.

[0196] Of course, in some other embodiments of this application, the diffuser 222 may also have other functions, such as focusing and uniform light functions, and it may also be called a light focusing element or something else.

[0197] In one embodiment, such as Figures 1 to 5As shown, the diffuser 222 can be configured as two, including a first diffuser 2221 and a second diffuser 2222. The first diffuser 2221 is disposed in the light-emitting direction of the first light-emitting component 211 and is used to diffuse the light generated when the first light-emitting component 211 is working. The second diffuser 2222 is disposed in the light-emitting direction of the second light-emitting component 212 and is used to diffuse the light generated when the second light-emitting component 212 is working. In some examples, the beam control component 221 is disposed on the side of the second diffuser 2222 facing the second light-emitting component 212. For example, the beam control component 221 is disposed on the second diffuser 2222 by attachment or structural fit, so that the light emitted by the second light-emitting component 212 is first acted upon by the beam control component 221 and then diffused by the second diffuser 2222. In other examples, the beam control component 221 can also be disposed on the side of the first diffuser 2221 facing the first light-emitting component 211. This application does not limit this. It should be understood that the setting of two diffusers 222 is only an example. In embodiments where the light-emitting unit 21 includes more light-emitting components, the diffusers 222 may also be set to more than two, or at least one diffuser 222. Each diffuser performs light diffusion and / or shielding protection on its corresponding light-emitting component. This application does not limit this.

[0198] In one embodiment, the first diffuser 2221 and / or the second diffuser 2222 may be made of PC material, possessing light diffusion function due to its inherent material properties. For example, the first diffuser 2221 and / or the second diffuser 2222 may be a milky white PC cover. In other embodiments, the first diffuser 2221 and / or the second diffuser 2222 may also be made of transparent material, such as glass or plastic (e.g., acrylic sheet), and a diffusion layer may be provided on its surface to give it light diffusion function. Figures 1 to 5 As shown, in a specific example, the first diffuser 2221 can be configured as an inverted trapezoidal cover structure, and the second diffuser 2222 can be configured as an annular cover structure conforming to the outer edge of the first diffuser 2221. When the first diffuser 2221 and the second diffuser 2222 are disposed on the support unit 1, they are adapted to each other to close the light-emitting surface of the light-emitting unit 21. A mounting structure can be provided on the side of the second diffuser 2222 facing the second light-emitting component 212. The mounting structure is used to configure the beam control component 221. It should be understood that... Figures 1 to 5 The first diffuser 2221 and the second diffuser 2222 shown are merely examples. Their structure and shape can be adapted to meet aesthetic requirements, as well as the specific structure and shape of the support unit 1 and the light-emitting unit 21. This application does not impose any limitations on them.

[0199] In some embodiments, the first diffuser 2221 may also be formed as an outer cover of the first light-emitting component 211 to shield and protect the first light-emitting component 211, and the second diffuser 2222 may also be formed as an outer cover of the second light-emitting component 212 to shield and protect the second light-emitting component 212. Here, the first diffuser 2221 may also be referred to as the first outer cover, and the second diffuser 2222 may also be referred to as the second outer cover. For example, in such... Figures 1 to 5 In the embodiment shown, the first diffuser 2221 and / or the second diffuser 2222 can respectively serve as an outer cover to shield and protect the first light-emitting component 211 and the second light-emitting component 212.

[0200] In one embodiment, such as Figures 23 to 28 As shown, the diffuser 222 can be configured as a single unit. The diffuser 222 includes a third diffuser 2223, which is positioned in the light-emitting direction of the first light-emitting component 211 and the second light-emitting component 212 to diffuse the light generated by the two light-emitting components (211, 212) during operation. Furthermore, the third diffuser 2223 can also be formed as an outer cover for the two light-emitting components (211, 212) to provide shielding and protection for them.

[0201] In one embodiment, the third diffuser 2223 may be made of PC material, possessing light diffusion functionality due to its inherent material properties. For example, the third diffuser 2223 may be a milky white PC cover. In other embodiments, the third diffuser 2223 may also be made of a transparent material, such as glass or plastic (e.g., acrylic sheet), and a diffusion layer may be provided on its surface to give it light diffusion functionality. Figures 23 to 28 As shown, in a specific example, the third diffuser 2223 may be configured to include a connecting structure 22231 and a cover structure 22232. The connecting structure 22231 is formed around the cover structure 22232 and is used to connect the third diffuser 2223 to the support unit 1. For the sake of appearance, in such a case... Figures 23 to 28 In the illustrated embodiment, the cover structure 22232 can be configured as an arc-shaped cover. Of course, the cover structure 22232 can also be configured as, for example... Figures 1 to 5 The inverted trapezoidal cover shown in this application does not impose any restrictions on its structure or shape.

[0202] It should be understood that, Figures 1 to 5 ,as well as Figures 23 to 28 This is merely an illustrative example of diffuser 222; the design of the number, structure, and shape of diffuser 222 only needs to ensure that it does not affect its function on the light-emitting unit. Furthermore, Figures 1 to 5 ,as well as Figures 23 to 28The relationship between the diffuser 222 shown and other parts of the LED lighting fixture is only illustrative and does not imply that the diffuser 222 shown must correspond to the structure of the LED lighting fixture shown in the figure. For example, Figures 23 to 28 The third diffuser 2223 used can be replaced with Figures 1 to 5 The first diffuser 2221 and the second diffuser 2222 in the middle, Figures 1 to 5 The first diffuser 2221 and the second diffuser 2222 used can also be replaced with Figures 23 to 28 The third diffusion element 2223 in the middle.

[0203] To prevent users from observing the LED beads of the light-emitting unit through the outer casing or diffuser, in one embodiment, for example, in... Figures 5 to 7 ,as well as Figures 24A to 26 In the embodiment shown, the first light-emitting component 211 is configured in four groups, with each group containing 24 light-emitting elements. The furthest distance between the outer casing of the first light-emitting component 211 and the side facing it is 12cm to 20cm (e.g., approximately 12cm, 13cm, 14cm, 15cm, 16cm, 17cm, 18cm, 19cm, or 20cm), preferably 16cm. For example, in... Figure 5 In the example shown where the outer casing of the first light-emitting component 211 is configured as a first diffuser 2221, the distance between the inverted trapezoidal base plate of the first diffuser 2221 and the first light-emitting component 211 is set to 12cm to 20cm. For example, in... Figure 24A In the example shown where the outer casing of the first light-emitting component 211 is configured as a third diffuser 2223, the furthest distance between the third diffuser 2223 and the first light-emitting component 211 is set to 12cm to 20cm. It should be noted that 12cm to 20cm is only a reference range. This distance is related to the number and distribution density of the first light-emitting components 211, the number and distribution density of light-emitting elements in each group of first light-emitting components 211, etc. Those skilled in the art can select an appropriate distance based on actual design principles, guided by the principles of this application.

[0204] In embodiments where the light-emitting unit 21 includes a first light-emitting component 211, since the emission angle of the first light-emitting component 211 is typically approximately 120 degrees, the illumination of the first light-emitting component 211 will be uneven, resulting in dark areas on the support unit 1 used to support / support the first light-emitting component 211. For example... Figure 6 As shown, its light-emitting unit 21 includes a first light-emitting component 211, which is disposed on the base 11 of the support unit 1. Please refer to the attached document for further details. Figure 33 , Figure 33 This application is displayed as being in Figure 6The light emission diagram of the first light-emitting component 211 in the embodiment shown is shown in the figure. Since the light emission angle of the first light-emitting component 211 is about 120 degrees, the light emitted by the first light-emitting component 211 cannot illuminate the back plate 12 located around the base 11; or, it can only illuminate a small part of the back plate 12. Therefore, a relatively dark area will be formed on the weak light area of ​​the support unit 1.

[0205] It should be noted that the dark area formed on the support unit 1 is due to the limited emission angle of the first light-emitting component. In some embodiments, even if the support unit 1 adopts other structures, a dark area will still be formed on the support unit 1 due to the influence of the emission angle of the first light-emitting component 211. For example Figure 34 and Figure 35 As shown, Figure 34 The diagram shows a three-dimensional structural schematic of the first light-emitting component 211 and the support unit 1 in one embodiment of this application. Figure 35 This application is shown as follows Figure 34 The schematic diagram of the light emission of the first light-emitting component 211 in the illustrated embodiment shows that, in this embodiment, the base 11 of the support unit 1 is configured as a planar structure, and the back plate 12 extends outward from the base 11. Furthermore, to improve light emission uniformity, the back plate 12 is configured as a curved surface, that is, an arcuate surface formed by extending outward from the base 11. Of course, depending on the structure and form adopted by the support unit 1, the base 11 and back plate 12 can also be named in other ways, for example, in... Figure 34 In the illustrated embodiment, the base 11 can also be referred to as the first part / first region of the support unit 1, and the back plate 12 can also be referred to as the second part / second region of the support unit 1; this application does not impose any limitations on this. For example... Figure 34 In the structure of the support unit 1 used, such as Figure 35 As shown, since the first light-emitting component 211 is disposed on the base 11 and the light-emitting angle is 120 degrees, almost no light is irradiated on the curved surface formed by the back plate 12, forming a dark area.

[0206] In view of this, in order to solve the problem of dark areas being formed on the support unit 1 due to the limited emission angle of the first light-emitting component 211, in some embodiments, for example... Figures 36 to 39 In addition to the first light-emitting component 211, the light-emitting unit 21 may further include a third light-emitting component 213. The purpose is to design the light emission direction of the third light-emitting component 213 to form light in the area outside the light emission angle of the first light-emitting component 211, thereby increasing the light uniformity on the surface of the support unit 1 and avoiding the aforementioned dark areas.

[0207] It should be noted that in other embodiments, the light-emitting unit may include other light-emitting components in addition to the first light-emitting component and the third light-emitting component. For example, the second light-emitting component described in any of the foregoing embodiments. That is, the light-emitting unit may include the first light-emitting component, the second light-emitting component, and the third light-emitting component. In other words, the light-emitting unit may include at least one of the first light-emitting component, the second light-emitting component, and the third light-emitting component, or it may include at least two of the first light-emitting component, the second light-emitting component, and the third light-emitting component. As long as the third light-emitting component can form light projected onto the dark area on the support unit, there is no limitation on the other light-emitting components included in the light-emitting unit.

[0208] In one embodiment, please refer to Figures 36 to 39 , Figure 36 The diagram shown is a three-dimensional structural schematic of an LED lighting fixture according to one embodiment of this application. Figure 37 This application is displayed as being in Figure 36 A schematic diagram of the disassembled structure of the LED lighting fixture in the embodiment shown. Figure 38 The diagram shown is a three-dimensional structural schematic of the third light-emitting component 213 cooperating with the support unit 1 in one embodiment of this application. Figure 39 This application is displayed as being in Figure 36 The illustrated embodiment shows a schematic diagram of the light emission of the first light-emitting component 211 and the third light-emitting component 213. As shown, the light-emitting unit 21 includes the first light-emitting component 211 and the third light-emitting component 213. The first light-emitting component 211 is disposed on the base 11, and its beam centerline is perpendicular to the base 11. The third light-emitting component 213 is located within the receiving space formed by the support unit 1, and its beam centerline forms a certain angle with the beam centerline of the first light-emitting component 211, and faces the support unit 1 to project onto the back plate 12 of the support unit 1. That is, the light emission direction of the third light-emitting component 213 faces the side of the lamp. Furthermore, the beam centerline of the third light-emitting component 213 is perpendicular to the beam centerline of the first light-emitting component 211 and projects onto the back plate 12 of the support unit 1. In this embodiment, the light emission direction is based on the beam centerline of the light-emitting component as a reference.

[0209] In order to fix the third light-emitting component 213, the support unit 1 further includes a support structure 14, which is vertically (or can be referred to as vertically) disposed on the base 11 of the support unit 1 and is used to configure the third light-emitting component 213, that is, the third light-emitting component 213 is disposed on the support structure 14.

[0210] like Figures 38 to 40 As shown, Figure 40The diagram shows a structural schematic of the cooperation between the third light-emitting component and the support structure in one embodiment of this application. The support structure 14 can be configured as a support plate, which is vertically fixed on the base 11. The support plate has a first mounting surface 141 and a second mounting surface 142 facing two opposite directions of the support unit 1, that is, the first mounting surface 141 and the second mounting surface 142 are two opposite surfaces of the support structure 14. Correspondingly, the third light-emitting component 213 is configured as at least two sets facing two opposite directions of the support unit 1, that is, at least one set of the third light-emitting component 213 is provided on the first mounting surface 141 and at least one set of the third light-emitting component 213 is provided on the second mounting surface 142. The support structure 14 can be fixed to the base 11, for example, by means of screws and nuts, or by means of adhesive, heat fusion or welding, or by means of means of engaging with the base 11, such as by means of clips or hooks. In order to adapt to the support structure 14, the base 11 can be provided with a structure that matches the support structure 14 to facilitate the installation of the support structure 14. This application does not limit the specific structure.

[0211] The support structure 14 can be set in the middle area of ​​the base 11, and multiple sets of first light-emitting components 211 are symmetrically distributed on both sides of the support structure 14.

[0212] As mentioned earlier, the third light-emitting component 213 is configured with at least two groups. "At least two groups" can be understood as two or more groups. For example, the third light-emitting component 213 can be configured with 2, 3, 4, 5, or 6 groups, etc., as long as two of these groups face two opposite directions from the support unit 1. Figure 40 The illustrated embodiment is used as an example, and in conjunction with Figure 39 ,exist Figure 39 In the embodiment shown, the third light-emitting component 213 is configured as 6 groups symmetrically distributed on the first mounting surface 141 and the second mounting surface 142. That is, 3 groups of third light-emitting components 213 are arranged in parallel on the first mounting surface 141, and 3 groups of third light-emitting components 213 are also arranged on the second mounting surface 142 at the corresponding positions of the first mounting surface 141. In this way, it can further ensure that the entire front of the support unit 1 emits light uniformly.

[0213] The third light-emitting component 213 may include a third circuit board 2131 and a third light-emitting element 2132. The third light-emitting element 2132 may be an LED bead or other type of LED light-emitting unit. The third circuit board 2131 is attached (e.g., directly attached or attached through an intermediate medium) to the base 11, and multiple third light-emitting elements 2132 may be configured, with the multiple third light-emitting elements 2132 evenly distributed on the third circuit board 2131.

[0214] Considering that the emitted light from the first light-emitting component 211 will be projected onto the edge area of ​​the support unit 1, for example, the area of ​​the back plate 12 away from the base 11, multiple sets of third light-emitting components 213 continuing to project onto this area would cause the edge area of ​​the support unit 1 to be too bright. Therefore, in some embodiments, the number of third light-emitting elements 2132 of the third light-emitting component 213 is related to the distance between the third light-emitting component 213 and the base 11. When the distance between the third light-emitting component 213 and the base 11 of the support unit 1 exceeds a preset value, the number of third light-emitting elements 2132 is reduced. Figure 40 As shown in the example, on the first mounting surface 141, the two sets of third light-emitting components 213 closer to the base 11 include 48 third light-emitting elements 2132, and the one set of third light-emitting components 213 farther from the base 11 includes 26 third light-emitting elements 2132.

[0215] Please see Figures 41 to 43 , Figure 41 This application is displayed as being in Figure 36 The light pattern diagram of the LED lighting fixture in the illustrated embodiment is shown. Figure 42 This application is displayed as being in Figure 36 The illuminance diagram of the illuminated surface at 2.5m from the LED lighting fixture in the illustrated embodiment. Figure 43 This application is displayed as being in Figure 36 The illuminance diagrams for different areas within the LED lighting fixture in the illustrated embodiment are shown below. Figures 41 to 43 The effect of the third light-emitting group of 213 pieces in improving the uniformity of light output and avoiding dark areas is explained.

[0216] like Figure 41 As shown, adding a third light-emitting component 213 to the first light-emitting component 211 in an LED lighting fixture will not adversely affect the light pattern of the LED lighting fixture, but it will cause the LED lighting fixture to exhibit a Lambertian or near-Lambertian light pattern, further... Figure 42 The diagram illustrates the illuminance at a distance of 2.5m from the LED lighting fixture, which conforms to the illuminance characteristics of a Lambertian or near-Lambertian light pattern, providing uniform and soft illumination. Figure 43As shown, several areas of the back panel of the LED lighting fixture are selected and labeled as E, F, G, and H, respectively, and their corresponding illuminance diagrams are labeled as (e), (f), (g), and (h), respectively. The area corresponding to the base of the LED lighting fixture is selected and labeled as I, and its corresponding illuminance diagram is labeled as (i). By comparing area I with areas E, F, G, and H, the illuminance of the LED lighting fixture conforms to the characteristics of a Lambertian or near-Lambertian light pattern, that is, the illuminance of area I is the strongest, while the illuminance of the side areas, namely areas E, F, G, and H, is relatively weak. From the comparison between areas E, F, G, and H, the illuminance of each area in the side areas is within a roughly the same range, which means that the side areas of the LED lighting fixture (such as the back panel) are generally uniform, and there are no dark areas in areas E, F, G, and H.

[0217] To reduce glare from the light fixtures, as previously described, the light processing unit 22 includes a diffuser 222, and further, in such a way... Figure 37 In the illustrated embodiment, the diffuser 222 includes a fourth diffuser 2224, which is disposed in the light emission direction of the first light-emitting component 211 and the third light-emitting component 213, and is used to diffuse the light generated by the first light-emitting component 211 and the third light-emitting component 213 during operation. The materials and functions of the fourth diffuser 2224 are the same as those of the third light-emitting component 213. Figures 1 to 5 ,as well as Figures 23 to 28 The diffusion components used are similar; please refer to the aforementioned [reference needed]. Figures 1 to 5 ,as well as Figures 23 to 28 The description of the diffuser is omitted here.

[0218] Please continue reading Figure 39 ,like Figure 39 As shown, since the emission angle of the third light-emitting component 213 is also 120 degrees, the light intensity of the central area of ​​the lamp is contributed only by the light from the first light-emitting component 211. That is, the third light-emitting component 213 cannot illuminate the area from -30 degrees to 30 degrees with the vertical direction of the support structure 14 as the center line. However, the light intensity of the area from -30 degrees to -60 degrees and from 30 degrees to 60 degrees with the vertical direction of the support structure 14 as the center line is contributed by both the first light-emitting component 211 and the third light-emitting component 213. As a result, the brightness contrast of the LED lighting fixture is too high, causing glare to the human eye.

[0219] Therefore, in one embodiment, as Figures 36 to 45 ,in, Figure 44 This application is displayed as being in Figure 37 A schematic diagram of the split structure of the light processing unit in the embodiment shown. Figure 45 This application is displayed as being in Figure 36The schematic diagram of the cross-sectional structure of the LED lighting fixture in the embodiment shown shows that the light processing unit 22 further includes a light-shielding component 223, which is connected and fixed to the diffuser 222. The light-shielding component 223 includes a light-shielding part 2231, which is disposed in the vertical direction of the support structure 14 and close to the side of the support structure 14 away from the support unit 1. The blocking part 2231 extends along the length direction of the support structure 14, or, it can also be said, extends along the length direction of the third light-emitting component 213, so as to block the area not projected by the third light-emitting component 213 (e.g., the area from -30 degrees to 30 degrees with the vertical direction of the support structure 14 as the center line), thereby reducing the discomfort of the human eye.

[0220] In one embodiment, the light-shielding part 2231 is disposed on the outside of the fourth diffuser 2224 and is attached to the fourth diffuser 2224. The light-shielding part 2231 may be configured as a metal strip adapted to the shape of the fourth diffuser 2224. To facilitate the configuration of the light-shielding part 2231, the light-shielding assembly 223 further includes a frame part 2232, which may be formed by extending the light-shielding part 2231. The frame part 2232 can fix the light-shielding part 2231 to the outside of the fourth diffuser 2224 and can also be used to position the fourth diffuser 2224 on the support unit 1. Therefore, the fourth diffuser 2224 may be configured to have an outer surface adapted to the shape of the light-shielding part 2231 and the frame part 2232, so as to facilitate the fixation of the fourth diffuser 2224 without affecting the aesthetics of the lamp.

[0221] The frame portion 2232 and the light-shielding portion 2231 can be integrally formed metal frame structures, or they can be detachably connected, or fixedly connected, or the light-shielding portion 2231 can be wrapped by the frame portion 2232. This application does not impose any restrictions here.

[0222] In other embodiments, the light-shielding part 2231 may also be disposed inside the fourth diffuser 2224, and the fourth diffuser 2224 may be provided with a corresponding receiving structure to facilitate the configuration of the light-shielding part 2231.

[0223] In some other embodiments of this application, the number of support structures 14 can be greater than zero, that is, at least one. Multiple support structures 14 can be arranged in parallel to better solve the dark area problem.

[0224] In some other embodiments of this application, the number of support structures 14 can be greater than zero, that is, at least one. The support structures 14 can be arranged in a staggered manner with a certain included angle, such as 90° or 45°, for example, arranged in a "+" structure, or appearing in an "I" shaped structure in some lamps with large aspect ratio differences, so that the light-emitting components 213 located on the support structure 14 can be projected to all corners of the LED lighting fixture, greatly reducing the dark area.

[0225] In some embodiments, the photoelectric module 2 may further include a power supply unit (not shown), which is disposed on the support unit 1 and electrically connected to the light-emitting unit 21 for connecting to an external power source or mains power. Please refer to... Figure 2 , Figure 3 ,as well as Figure 36 To protect the power supply unit, the support unit 1 further includes a power module 3, which includes a power box for providing installation space for the power module. Figure 2 , Figure 3 ,as well as Figure 36 In the example shown, the power module 3 is disposed on the back of the support unit 1, and the power unit is disposed inside the power box. In other examples, the power box may not be provided, and the power unit (a separate power unit can also be referred to as a power module) may be directly disposed on the front or back of the support unit 1. The power unit may include several electronic components and wiring components. The electronic components may be disposed on the circuit board corresponding to the power unit, or some of them may be disposed on the circuit board corresponding to the light-emitting unit 21, so as to share the same circuit board with the light-emitting unit 21.

[0226] See Figures 46 to 53 As shown, this is another embodiment of an LED lighting fixture in this application. This fixture can emit light at multiple angles and can be referred to as a full-emission LED lighting fixture. For example, it can be a suspended linear fixture or a fixture fixed to the ceiling or suspended ceiling. The spatial position of this LED lighting fixture is located as follows: Figure 46 or Figure 50 In the Cartesian coordinate system shown, the LED lighting fixture includes: a support unit 1, a photoelectric module 2, and a diffuser 222 (which can also be called a light processing unit). The plane where the support unit 1 is located is parallel to the xy plane, the photoelectric module 2 emits light approximately along the z-axis, and the diffuser 222 itself is also approximately parallel to the xy plane.

[0227] See Figures 46 to 47AAs shown, the support unit 1 arches to one side (e.g., along the positive z-axis) from the edge towards the center to form a back plate 12. Specifically, the open end of the back plate 12 connecting to the support unit 1 serves as the bottom of the back plate, and the closed end of the back plate 12 away from the support unit 1 serves as the top of the back plate. The inner wall connecting the bottom and top of the back plate can be referred to as the side wall. Preferably, the support unit 1 and the back plate 12 can be made of metal or plastic by stamping or injection molding to improve production efficiency and ensure the structural strength of the lamp housing. More preferably, the support unit 1 and the back plate 12 can be made of aluminum alloy to reduce the overall weight of the LED lighting fixture. At the same time, since the support unit 1 and the back plate 12 of the LED lighting fixture are made of aluminum alloy, they have good thermal conductivity, which can fully transfer the heat generated by the optoelectronic module 2 to the atmospheric environment, thereby improving the heat dissipation performance of the LED lighting fixture and ensuring that the LED lighting fixture is always in a working environment with a better temperature. Generally speaking, the working life of the LED lighting fixture can be effectively guaranteed when the ambient temperature does not exceed 35 degrees Celsius. In some embodiments, the back plate 12 and the support unit 1 are integrally formed. Of course, in some other embodiments, the back plate 12 and the support unit 1 can be formed independently and then assembled.

[0228] The specific shape of the support unit 1 is not limited; it can be a strip, circle, rectangle, or other irregular shape. In this embodiment, the support unit 1 is generally rectangular. The edges of the support unit 1 can be designed with upward-folded edges, forming a rounded edge that requires no additional processing. This creates an edge that provides high safety for both use and installation. Simultaneously, the folded edges strengthen the structural strength of the support unit 1's edges, preventing deformation. Furthermore, the folded edges enhance the aesthetics of the support unit 1. The right angles of the support unit 1 are designed with rounded chamfers to avoid sharp corners, thereby improving safety during transportation and installation.

[0229] See Figures 47A to 49B and Figures 51A to 53 As shown, the photoelectric module 2 is disposed within the back plate 12. Preferably, the photoelectric module 2 is connected to the back plate 12 in a way that facilitates detachment. For example, the photoelectric module 2 and the back plate 12 are connected by a snap-fit / clamping structure, or the photoelectric module 2 is connected to the top of the back plate 12 by screws, or the photoelectric module 2 can be magnetically attached to the inside of the back plate 12. This detachable connection method facilitates the replacement of the photoelectric module 2 or components on the photoelectric module 2 for faulty LED lighting fixtures. Of course, the photoelectric module 2 can also be fixed inside the top of the back plate 12, but it will not be easily detachable.

[0230] The light emitted by the photoelectric module 2 is at least partially directed and projected onto the periphery (or sidewalls) of the inner wall of the back plate 12. Specifically, the photoelectric module 2 includes multiple rows of light strips (or LED beads, LED arrays, i.e., multiple light-emitting elements), and the multiple rows of light strips have different light emission directions and light emission angles, i.e., light emission at least two angles. The light strips can be set along the x-axis and / or y-axis directions. Some light strips are directed to the slots and / or the top area of ​​the back plate 12 for light emission, and some light strips can be directed to the sidewalls of the back plate 12 for light emission. By dispersing the light emission, the dark areas around the back plate 12 are illuminated until the brightness of the central area of ​​the back plate 12 tends to be consistent, thereby solving the problem of uneven brightness of the LED lighting fixture and effectively improving the light emission effect. A diffuser 222 is disposed on the side of the photoelectric module 2 away from the top of the backplate 12. The diffuser 222 can cover at least part of the photoelectric module 2, that is, the projection of the diffuser 222 in the z-axis direction can completely or at least partially cover the photoelectric module 2. Preferably, the diffuser 222 completely covers the photoelectric module 2 to facilitate the dispersion of most of the light emitted by the photoelectric module 2, making the light output of the LED lighting fixture more uniform and soft, and avoiding the glare and dazzling problems caused by excessive light concentration in the central area of ​​the backplate 12. The photoelectric module 2 includes light output settings in at least two directions, and at least two light strips (or LED beads, LED arrays, i.e., at least two light-emitting elements) are disposed on at least two mounting surfaces. From another perspective, the optical axes or extensions of the optical axes of at least two light strips (LED beads, LED arrays) intersect. It should be noted that it is also possible for at least two light strips (LED beads, LED arrays) to be disposed on the upper and lower surfaces of the same mounting component.

[0231] The diffuser 222 has a slightly arched, convex structure along the z-axis, forming an arc shape to better diffuse light. The diffuser 222 can be made of a translucent material; for example, it could be made of glass or acrylic, with a diffusion coating or film applied to its surface to achieve light diffusion. Alternatively, the diffuser 222 can be made of a partially transparent material; for example, it could be a milky-white PC cover with a certain degree of haze. Due to its material properties, the PC cover also has light-diffusing properties, resulting in softer light emission.

[0232] See Figure 47A , Figure 47B and Figure 51AAs shown, in one specific embodiment, a mounting hole 15 is provided at the top of the back plate 12. The mounting hole 15 can be located in the central area and / or edge area of ​​the top of the back plate 12. The number and shape are not limited. The mounting hole 15, together with the connecting parts, such as bolts, hanging rods, hanging chains, etc., can suspend or install the housing of the LED lighting fixture (i.e., the support unit 1 and the back plate 12) to the ceiling, thereby realizing the installation of the LED lighting fixture.

[0233] Of course, the mounting holes 15 can also be set on the bottom of the back plate, for example, at the four corners of the bottom of the back plate, so that the LED lighting fixture can be embedded in the ceiling or other mounting surfaces. The bottom of the back plate is basically parallel to the ceiling or other mounting surfaces, and the height of the back plate 12 is hidden inside the ceiling. The base plate of the LED lighting fixture and the ceiling surface are smoothly transitioned, and the difference between the two surfaces does not exceed twice the thickness of the edge of the fixture. The overall surface formed between the fixture and the mounting plane after installation is flat and has a good visual effect.

[0234] Furthermore, a portion of the top area of ​​the backplate 12 is recessed towards the optoelectronic module 2 to form a reinforcing rib 16, meaning there are areas with different heights on the top surface of the backplate 12. By designing the reinforcing rib 16, the structural strength of the top area of ​​the backplate 12 can be significantly improved, preventing warping and deformation during LED lighting fixture installation. For example, the reinforcing rib 16 can be a single or multiple straight lines, or a mesh or radiating structure; there are no specific limitations. In one embodiment, the reinforcing rib 16 is a single straight line extending along the y-axis, and its length does not exceed the length of the top of the backplate 12. Furthermore, there are two mounting holes 15, respectively located at both ends of the reinforcing rib 16, to balance the forces on both ends of the LED lighting fixture, improving stability and reliability after installation. Of course, if the backplate 12 itself has sufficient strength, the reinforcing rib 16 may not be necessary, thus simplifying the manufacturing process.

[0235] See Figure 46 and Figure 50 As shown, in some embodiments, the inner wall of the back plate 12 is provided with a reflective surface. Specifically, the reflective surface is the inner wall surface of the top and side walls of the back plate 12. The reflective surface can redistribute the light emitted by the optoelectronic module 2 from different light emission directions and angles to improve the uniformity of light emission and enhance the lighting effect. Preferably, the reflective surface is a diffuse reflective surface, which can be obtained by mechanical processing or chemical treatment. The diffuse reflective surface can reflect light in all directions to disperse the light, thereby reducing glare and localized strong light. At the same time, it ensures that light is emitted from most areas in the light emission direction of the LED lighting fixture, avoiding localized dark areas and further improving the light emission effect.

[0236] See Figures 46 to 49BAs shown, in the first embodiment, the optoelectronic module 2 of the LED lighting fixture includes a first bracket 210, a first light-emitting component 211' and a second light-emitting component 212', wherein the first light-emitting component and the second light-emitting component can also be described as part of light-emitting units.

[0237] See Figures 47A to 47C , the first bracket 210 is arranged in the back plate 12, and the first bracket 210 has a "hui"-shaped structure. As an example, the first bracket 210 is generally vertically or nearly vertically arranged and fixed in the back plate 12. The first bracket 210 includes two parts: an inner bracket 2101 and an outer bracket 2102 (see Figure 47C and Figure 49A ), the inner bracket 2101 and the outer bracket 2102 are preferably made of opaque materials, such as opaque plastic, aluminum alloy, carbon fiber, etc., so as to reduce the weight of the LED lighting fixture. Both the inner bracket 2101 and the outer bracket 2102 are provided with positions for installing LED strips. The inner bracket 2101 and the outer bracket 2102 are arranged at a certain interval, and may have different included angles relative to the back plate 12. The inner bracket 2101 is surrounded by the outer bracket 2102, and both may be flaky annular structures ("hui"-shaped structure).

[0238] The first light-emitting component 211' includes a first light-emitting element 2112' and a first light-emitting element 2112". The first light-emitting element 2112' is disposed within the back plate 12, preferably located in the central region of the top of the back plate. The number of first light-emitting elements 2112' can be one, two, or more, depending on the actual required illumination brightness. As an example, the first light-emitting element 2112' is horizontally disposed at the reinforcing rib 16 of the back plate 12. The first light-emitting element 2112' emits light approximately along the z-axis direction, towards the central region of the diffuser 222. The first light-emitting element 2112" is disposed on the inner edge region of the first bracket 210, i.e., the inner bracket 2101, that is, the side of the inner bracket 2101 facing the first light strip 211. The number of first light-emitting elements 2112" can be two, four, or more, specifically adjusted to match the brightness effect of the first light-emitting elements 2112'. For example, there are two first light-emitting elements 2112" symmetrically arranged on both sides of the first light-emitting element 2112'. The first light-emitting elements 2112" can be mounted vertically or obliquely on the inner bracket 2101. Preferably, the inner bracket 2101 has an oblique mounting surface. This oblique mounting surface allows more light from the second light strip 222 to be emitted from the diffuser 222, meaning the light emission angle coincides more closely with the diffuser cover. The first light-emitting elements 2112" are obliquely arranged on this mounting surface, and their light emission direction intersects the z-axis in the opposite direction, so that the light is emitted towards the edge area of ​​the diffuser 222. Through the cooperation of the first light-emitting elements 2112' and 2112" , the diffuser 222 illuminating the LED lighting fixture can receive uniform light throughout, improving the light emission effect.

[0239] The second light-emitting component 212' is an LED light strip. It is positioned on the outer edge of the first bracket 210, i.e., the outer bracket 2102. The number of second light-emitting components 212' can be one, two, four, or more. They can also be mounted vertically or at an angle on the outer bracket 2102 to achieve light emission from different directions and angles. For example, four second light-emitting components 212' are vertically and evenly distributed around the outer bracket 2102. These components emit light along the x-axis and y-axis, uniformly illuminating the top and sidewall areas of the backplate 12, resulting in consistent brightness across all areas of the lamp and improving the aesthetics and lighting effect of the LED lighting fixture.

[0240] See Figure 49B This is a schematic diagram of the structure of the first support 210 in this application after removing the diffuser 222 and other components. (Combined with...) Figures 46 to 49AIt can be seen that the inner side of the first support 210 in a vertical state can be called the inner support 2101, and the outer side in a vertical state can be called the outer support 2102. At the end of the inner support 2101 and the outer support 2102 facing the diffuser 222, there is an edge extending outward for a certain length. This edge can be horizontal or have a certain angle. At the same time, this edge can play a certain role in shading light. For ease of description, it will be referred to as the light-shielding eaves 23 below. The angles of the inner support 2101, the outer support 2102, and the light-shielding eaves 23 can be specifically designed according to actual needs and are not limited to the examples in the embodiments of this application. The inner support 2101, the outer support 2102, and the light-shielding eaves 23 can be integrally formed, or they can be formed separately and then assembled into one.

[0241] Overall, the photoelectric module 2 in the all-light-emitting LED lighting fixture of Example 1 has a simple structure and beautiful shape. By establishing light-emitting paths in different directions and at different angles, and cooperating with the back plate 12 and the diffuser 222 for reflection and diffusion, the light emission effect of the LED lighting fixture can be effectively improved.

[0242] See Figure 49A As shown, the angle α between the plane containing the first light-emitting element 2112” and the plane containing the top of the back plate 12 is greater than 90°. Preferably, the angle α is greater than 90° and less than 150°. Within this angle α range, it can be ensured that the first light-emitting element 2112” emits light towards the edge or central area of ​​the diffuser 222. In one embodiment, the angle α between the plane containing the first light-emitting element 2112” and the plane containing the top of the back plate 12 is 120°. In this case, the light emission direction of the first light-emitting element 2112” is more biased towards the edge area of ​​the diffuser 222, which can reduce the overlap range of light emission with the first light-emitting element 2112', so that the first light-emitting component 211' disperses the light emission and improves the uniformity of illumination.

[0243] In a preferred embodiment, the first bracket 210 extends radially around one end of the back plate away from the top of the back plate 12 to form a light-shielding awning 23. Specifically, the light-shielding awning 23 is formed by bending one end of the inner bracket 2101 of the first bracket 210 and extending outward in a near-horizontal state. The light-shielding awning 23 has an overall annular structure (see...). Figure 47A Figure 49B After the light-shielding eaves 23 are set, the light-shielding eaves 23 and the outer side of the first bracket 210 can form a light-shielding area, and the outer LED light strip is located in the light-shielding area. By setting the light-shielding eaves 23 for light-shielding treatment, the outer LED light strips around the naked eye can not be seen within a certain range. Because the outer LED light strips are hidden in the light-shielding area, there will be no glare or eye strain even when looking directly at the LED lighting fixture.

[0244] In addition to its function of shading and preventing glare, the shading eaves 23 can also be used as an additional mounting surface. The second light-emitting component 212' is not limited to being mounted on the outer bracket 2102. It can also be set horizontally or obliquely on the surface of the shading eaves 23 facing the diffuser 222 or away from the diffuser 222 (not shown) to provide supplementary lighting and avoid the problem of dark areas caused by excessive darkness in some areas. Furthermore, the shading eaves 23 can alleviate the problem of limited mounting space on the outer bracket 2102, which is beneficial for the layout of external light sources and construction operations.

[0245] In one specific embodiment, the diffuser 222 has an arc-shaped plate structure. This shape is aesthetically pleasing and can more evenly disperse light, reducing the glare effect of the LED lighting fixture. Furthermore, the outline area of ​​the diffuser 222 is larger than that of the first bracket 210, effectively shielding the photoelectric module 2. Even without the light-shielding eaves 23, the larger area of ​​the diffuser 222 can still provide shielding, preventing glare and eye strain caused by direct viewing of the external LED light strip. The farthest point of the diffuser 222 along the light-emitting direction of the LED lighting fixture is smaller than any point on the base plate of the base 1, meaning the diffuser 222 is completely contained within the LED lighting fixture.

[0246] See Figure 49C This is a simplified light emission diagram of the LED lighting fixture in the application embodiment, where the dashed lines represent a simplified light emission. The outer side of the first bracket 210, i.e., the outer bracket 2102, emits light towards the sidewall. This sidewall has a specific curvature and reflective effect, causing the light emitted from the outer bracket 2102 to be reflected by at least one layer before exiting from the outer edge area of ​​the LED lighting fixture, resulting in a better light emission effect at the outer edge of the LED lighting fixture. The diffuser 222, after light processing (e.g., homogenization or diffusion) of the light emitted from the second LED strip 222 on the inner bracket 2101 and the first LED strip 221 on the reinforcing rib 16, emits light from the more central area of ​​the LED lighting fixture. Thus, the edges and center of the LED lighting fixture have approximately the same light emission, resulting in similar brightness in a visual effect. In other words, almost all areas of the LED lighting fixture have a light emission effect, for example, more than 90% of the area.

[0247] In some other embodiments, the area where the LED lighting fixture has a light-emitting effect can also be more than 50%, more than 60%, etc.

[0248] See Figures 50 to 53 As shown, in the second embodiment, the photoelectric module 2 of the all-light-emitting LED lighting fixture includes a second bracket 220, a first light-emitting component 211", a second light-emitting component 212", and a strip lens 25.

[0249] The second bracket 220 is fixed inside the back plate 12. As an example, the second bracket 220 can be suspended inside the back plate 12. A suspension part 24 can be provided between the second bracket 220 and the top of the back plate 12, and the two parts are connected by the suspension part 24. That is, one end of the suspension part 24 is fixed to the back plate 12, and the other end is fixed to the second bracket 220. As an example, the suspension part 24 can be a hollow tubular structure to reduce weight. At the same time, wiring can be arranged inside it as needed or not. The height of the suspension part 24 determines the position of the second bracket 220. In order to ensure that the upper half of the back plate 12 can be fully illuminated, the distance from the second bracket 220 to the top of the back plate 12 can be greater than the distance from the second bracket 220 to the bottom plate of the back plate 12. The second bracket 220 is roughly in the shape of a "U" and has mounting positions on both its upper and lower sides for mounting the first light-emitting component 211 and the second light-emitting component 212.

[0250] See Figures 51A to 51D Both the first light-emitting component 211” and the second light-emitting component 212” are LED light strips. The first light-emitting component 211” is located at the upper end of the second bracket 220. The first light-emitting component 211” emits light approximately along the positive z-axis, illuminating the top of the back plate 12 and the upper half of its sidewalls. The number of first light-emitting components 211” can be two, four, or more. The second light-emitting component 212” is located at the lower end of the second bracket 220. The second light-emitting component 212” emits light approximately along the negative z-axis, illuminating the bottom of the back plate 12 and the lower half of its sidewalls. The number of first light-emitting components 211” can also be two, four, or more. As an example, there can be four first light-emitting components 211" and four second light-emitting components 212", or two first light-emitting components 211" and two second light-emitting components 212", or two first light-emitting components 211" and four second light-emitting components 212". The specific combination of the number of first light-emitting components 211" and second light-emitting components 212" is not limited, as long as it ensures uniform light emission and improves the lighting effect. In one embodiment, there are two first light-emitting components 211" symmetrically arranged on both sides of the upper end of the second bracket 220, and four second light-emitting components 212" are respectively arranged around the lower end of the second bracket 220. This circular arrangement around the four sides of the second bracket 220 makes the light emission more uniform and improves the lighting effect.

[0251] See Figure 51C and Figure 51DBoth the strip lens 25 and the diffuser 222 have corresponding cavities for accommodating the LED light strip, and the cavities form a sealed space with the upper and lower surfaces of the second bracket 220 to form a protective structure for the LED light strip. Furthermore, the cavities of the strip lens 25 and the diffuser 222 are designed with specific surface shapes to achieve different light effects, wherein the total length of the LED light strip is less than the total length of the cavity.

[0252] In addition, the second bracket 220 can also be in the form of a straight line (not shown). The upper and lower surfaces of the second bracket are also provided with mounting positions. The first light-emitting component 211” and the second light-emitting component 212” can be arranged in a straight line on the upper and lower sides of the second bracket 220, which also has a relatively uniform light emission effect. In some other embodiments, the second bracket 26 can also be other structures, such as wavy, rectangular, etc.

[0253] The photoelectric module 2 in the aforementioned all-light-emitting LED lighting fixture adopts a suspension design, which also simplifies the structure and enhances the aesthetics and lighting effect of the LED lighting fixture. In one embodiment of this application, one end of the suspension part 24 is fixed near the mounting hole 15 and is disposed in the support unit 1, i.e., in the direction of light emission from the lamp, and is fixed by means of screws, glue, clips / fasteners, etc., while the other end is fixed to the surface of the second bracket 220. The suspension part 24 and the second bracket 220 can be integrally formed, or they can be formed separately and then fixed to each other.

[0254] In another embodiment of this application, the suspension part 24 can be fixed by passing through the mounting hole 15. That is, the suspension part 24 has a large end and a small end. The projected area of ​​the large end along the Z-axis is larger than that of the mounting hole 15, and the projected area of ​​the small end is smaller than that of the mounting hole 15. During installation, the small end of the suspension part 24 passes through the mounting hole 15, and the large end is stuck on the outside of the base plate 1, that is, in the opposite direction to the light emission direction of the lamp. It can also be fixed under the action of gravity without additional fixing (see...). Figure 53 ).

[0255] like Figures 51A to 53 As shown, a strip lens 25 is provided above the first light-emitting component 211”. The strip lens 25 is strip-shaped and is used to guide the light emitted by the upper LED light to disperse to both sides, so as to illuminate the middle and surrounding areas of the support unit 1 more evenly.

[0256] Wherein, along the length direction of the strip lens 25, i.e., the radial direction, the overall cross-section of the strip lens 25 is a semicircular structure or an arc-shaped structure. A light strip cavity 250 is provided inside the strip lens 25. The cross-section of the light strip cavity 250 may be triangular, arc-shaped, or semicircular parallel to the semicircular cross-section of the strip lens 25, etc., but is not limited thereto, and may be arranged according to actual light output requirements. In the present application, the light strip cavity 250 has a smooth surface, but in other embodiments it may also have an uneven surface, such as a frosted surface, a continuous concave-convex surface, a Fresnel lens surface, etc., to meet different light effects such as diffuse reflection. Specifically, when the light emitted by the first light-emitting component 211'' exits outward from the light strip cavity 250, refraction occurs. The luminous flux of any first light-emitting component 211'' directed toward the middle of the backplane 12 is smaller than the luminous flux directed toward the area around the support unit 1. However, after the luminous flux of the two first light-emitting components 211'' directed toward the middle of the backplane 12 is superimposed, it tends to be consistent with the luminous flux of any first light-emitting component 211'' directed toward the area around the backplane 12, so that the entire LED lighting fixture does not have dark areas, and the lighting effect is improved. The length of the light strip cavity 250 in the strip lens 25 is more than 80% of the total length of the strip lens 25. Both ends of the strip lens 25 may be integrally formed closed surfaces, or separately formed closed surfaces, or the light strip cavity 250 may completely penetrate the strip lens 25.

[0257] The strip lens 25 can also be formed by arranging independent individual lenses.

[0258] In a specific embodiment, the light brightness of the second light-emitting component 212'' after passing through the diffuser 222 is one third to one fifth of the light brightness of the first light-emitting component 211'' after passing through the strip lens 25, preferably one quarter. As an example, the first light-emitting component 211'' provides about 80% of the light upward, and the second light-emitting component 212'' provides about 20% of the light downward. The light is reflected by the backplane 12 and then output, which can effectively improve the lighting effect.

[0259] In a specific embodiment, the diffuser 222 is in a "square frame (hui)" structure and is fixedly connected to the second bracket 220; the second light-emitting component 211'' is located in the diffuser 222, and the diffuser 222 disperses and atomizes the light to achieve a better light output effect.

[0260] see Figure 46 and Figure 50 as shown, in a specific embodiment, the diffuser 222 is located in the backplane 12 or is flush with the plane where the notch of the backplane is located, so as to improve the modeling aesthetic of the LED lighting fixture.

[0261] The LED light strip in the above embodiments of the present application can also be composed of LED filaments, LED bead arrays, light bulbs and other forms, but is not limited thereto.

[0262] In another embodiment of this application, light source plates with different orientations are further arranged to make the light emission direction of the optoelectronic module more diverse and uniform, further improving the light emission uniformity. Furthermore, the arrangement of the light source plates provides more installation space for installing the light-emitting components in the optoelectronic module. Figure 54 The XYZ rectangular coordinate system established in the text is defined as follows: the side located in the positive direction of the X-axis is defined as the right side, and the side located in the negative direction of the X-axis is defined as the left side; the side located in the positive direction of the Y-axis is defined as the front, and the side located in the negative direction of the Y-axis is defined as the back; the side located in the positive direction of the Z-axis is defined as the top, and the side located in the negative direction of the Z-axis is defined as the bottom.

[0263] The LED lighting fixtures (hereinafter referred to as LED lighting fixtures) proposed in this application will now be described in conjunction with the accompanying drawings.

[0264] like Figure 54 and Figure 55 As shown, the LED lighting fixture proposed in this application includes: a support unit 1, a diffuser 222 (or light processing unit), a power module 3, and a photoelectric module 2; the support unit 1 fixes the fixture to a mounting surface, such as an indoor ceiling, to achieve indoor lighting; the diffuser 222 extends along the X-axis direction, that is, the length direction of the fixture, and its two ends are fixedly connected to the support unit 1 through diffuser end caps 22210, thereby improving the illuminance uniformity of the fixture, and the curved surface of the diffuser 222 is combined with the support unit 1. A complete light-emitting surface is formed in the light-emitting direction of the lamp, i.e., the positive Z-axis direction, ensuring visual integrity and enhancing the external aesthetics of the lamp; the power supply module 3 provides power to the light source; the photoelectric module 2 is set between the support unit 1 and the diffuser 222, providing a first light-emitting component 211” and a second light-emitting component 212” to expand the lighting range, wherein the diffuser 222 covers the photoelectric module 2, or more specifically, at least partially or completely covers the photoelectric module 2, or at least partially or completely covers the light-emitting components.

[0265] like Figure 55 As shown, the support unit 1 specifically includes a base 11. The base 11 can be fixed to the mounting surface by means of screws, clips, or embedding. The base 11 can be set as an arc-shaped structure or a square structure according to actual needs.

[0266] like Figure 54 , Figure 55 and Figure 61As shown, in one specific embodiment, the base 11 is configured as a square structure, and the front and rear ends of the base 11 are connected to upwardly extending side walls, which can also be called first base side walls 112'. The base 11 and the first base side walls 112' at both ends can be configured as an integral structure, which is integrally formed by stamping process, and the production process is relatively simple and the structural strength is high; or it can be configured as a split structure, which is convenient for disassembly and facilitates the work of staff and subsequent maintenance. Meanwhile, the support unit 1 also includes a back plate 12, which is stacked on the base 11. The back plate 12 is configured as a structure that is wider at the top and narrower at the bottom. Specifically, the width of the upper end of the back plate 12 in the front-to-back direction is D1, the width of the lower end of the back plate 12 in the front-to-back direction is D2, and the width between the upper ends of the first base sidewalls 112' on both sides of the base 11 in the front-to-back direction is D3. D1 must be greater than or equal to D2, preferably, D1 is greater than D2. To ensure that the back plate 12 can be easily placed into the support unit 1, D3 is greater than D2, and D3 is slightly greater than or equal to D1. The height of the base 11 in the vertical direction is greater than the height of the back plate 12, thereby ensuring that the upper edges of the base 11 and the back plate 12 can fit tightly without gaps or light leakage. In a specific embodiment, the back plate 12 can be configured as a square structure or an arc-shaped structure with support plates connected to its sides.

[0267] like Figure 55 As shown, the back plate 12 has an upward protrusion 123 at its central axis extending along its length, forming a cavity with the base 11. The power module 3 is located inside the protrusion 123 and fixedly connected to the base 11. The base 11 has an opening corresponding to the position of the power module 3, and the wiring board 33 is electrically connected to the external circuit through the opening. By embedding the power module 3 inside the support unit 1, space is reused, effectively saving space and reducing the overall height of the lamp. At the same time, it eliminates the need to package the power module 3 and the support unit 1 separately, reducing packaging volume and lowering costs.

[0268] like Figure 59 As shown, the protrusion 123 extends left and right along the length of the lamp. In cross-section, the protrusion 123 is similar in shape to a trapezoid. Its upper surface is set as a relatively flat horizontal surface, which facilitates the installation of the photoelectric module 2 onto the upper surface of the protrusion 123. Its two sides are set as inclined surfaces with a certain angle, which can reflect the light emitted by the side light source of the photoelectric module 2 to a certain extent, further enhancing the light output of the lamp at the side position, reducing the dark area, and at the same time avoiding excessive light concentration and enhancing the uniformity of illumination.

[0269] like Figure 62 As shown, in another specific embodiment, the base 11 is configured as an arc-shaped structure with its arc-shaped opening facing upward. The base 11 is arc-shaped and forms a certain space. The power module 3 can be set in the space formed by the arc-shaped upward curve of the base 11 and the mounting surface. In addition to the external support unit 1, the power module can be set without increasing the overall thickness of the lamp.

[0270] The base 11 has an upward protrusion at its central axis extending along its length. The power module 3 can also be housed within the protrusion and fixed to the mounting surface. By embedding the power module 3 within the support unit 1, the height and volume of the lamp are not increased, while the aesthetics of the lamp are improved. The protrusion serves the same purpose as in the previous embodiment; its relatively flat upper surface can be used to fix the light source module, which will not be described in detail here.

[0271] like Figure 55 As shown, the power module 3 includes a power circuit board 31, which is fixed to the support unit 1 by means of screws, adhesive or snap-fit. A terminal block 33 is provided on the power circuit board 31, which is connected to an external circuit by wires. A first power supply 32 is provided on the side of the terminal block 33, and the first power supply 32 is electrically connected to the terminal block 33.

[0272] like Figure 55 , Figure 58 , Figure 59 , Figure 60AAs shown, a photoelectric module 2 is provided on the back plate 12. The photoelectric module 2 includes a light source plate 201. A groove 202 is provided at the central axis of the light source plate 201. The upper end face of the light source plate 201 is symmetrical about the groove 202. The surface of the groove 202 intersects the plane of the upper end face. The included angle between the two can be adjusted. In one embodiment of this application, the two are approximately perpendicular. Two sets of first light-emitting components 211” are provided on the upper end face. The symmetrical arrangement can effectively ensure the uniformity of the illuminance of the front light. Each set of first light-emitting components 211” includes a first light-emitting component disposed on the light source plate 201. The circuit board 2111' has a plurality of first light-emitting elements 2112" arranged extending left and right along its length. When the first light-emitting elements 2112" are powered on, they emit upward-facing light. The number of first light-emitting elements 2112" can be adjusted according to the actual required light intensity. The more first light-emitting elements 2112" there are, the greater the forward light intensity of the LED lighting fixture. In this embodiment, at least one row of first light-emitting elements 2112" (such as one row or two rows) is arranged on both sides of the first circuit board 2111'. That is, the photoelectric module 2 has light emission in at least two directions. The base 11 includes a base plate 111, which, together with the first base sidewall 112' (or sidewall), forms a receiving cavity with the second end cover 4. The photoelectric module 2, the power module 3, and the back plate 12 are disposed in this receiving cavity. The height of the diffuser 222 is less than or equal to the height of the first base sidewall 112' along the positive Z-axis, so as to ensure the overall aesthetics of the lamp installation and prevent the diffuser 222 from protruding from the support unit 1. When the diffuser 222 protrudes from the support unit 1, it is easily damaged by contact (bumps) with external objects. The back plate 12 also includes a light-emitting curved surface 121 and a connecting portion 122. The light-emitting curved surface 121 corresponds to the lateral light emission of the diffuser 222. The lateral light emitted by the diffuser 222 is emitted from the light-emitting direction after light processing. The light-emitting curved surface 121 may have reflection, transmission, refraction, and diffusion functions, or have at least two or more light processing functions at the same time. When the lateral light emitted by the diffuser 222 reaches the light-emitting curved surface 121, part of the light is directly reflected, and part of the light passes through the light-emitting curved surface 121 and reaches the support unit 1. After being reflected by the support unit 1, it is transmitted through the light-emitting curved surface 121. The above process can occur once or multiple times. Of course, the lateral light emitted by the diffuser 222 may also be completely reflected from the light-emitting surface 121 without reaching the support unit 1.The back plate 12 also has a connecting part 122, which is connected to the end of the first base side wall 112', that is, the end along the positive direction of the Z axis, by a snap-fit. If the connecting part 122 is a bent structure, the end of the first base side wall 112' has a matching bend. The fixing can be completed by pressing the connecting part 122 to the end of the first base side wall 112'. Of course, in other ways, the bent connecting part can also be formed by hot pressing for fixing, or additional components such as screws, fixing frames, etc. can be used for fixing.

[0273] like Figure 58 and Figure 59 As shown, second light-emitting components 212” are arranged on opposite sides of the outside of the groove 202. The bottom of the groove 202 is fixed to the protrusion of the back plate 12 by screws (or glue, welding, clips, etc.), so that there is a certain height difference between the second light-emitting components 212” and the back plate 12, which effectively expands the illumination range of the second light-emitting components 212”, that is, expands the light-emitting range of the second light-emitting components 212” to a certain extent. The second light-emitting components 212” include a second circuit board 2121’ arranged on the outer wall of the groove 202. The second circuit board 2121’ extends left and right along the long axis and is arranged with a plurality of second light-emitting bodies 2122”. When the second light-emitting bodies 2122” are powered on, the second light-emitting bodies 2122” emit side-illuminating light. The number of second light-emitting bodies 2122” can be adjusted according to the actual required light intensity. The more second light-emitting bodies 2122”, the greater the side light intensity of the lamp body. In this embodiment, a row of second light-emitting bodies 2122” is arranged on both sides of the second circuit board 2121’.

[0274] In some other embodiments of this application, the LED beads can also be disposed on the lower surface of the end face of the light source board 201, the inclined surface of the protrusion 123, or other positions. That is, the light emission of the photoelectric module 2 can be achieved through multiple LED beads disposed at different positions, so that the light emission angle covers a range of 180° along the light emission direction, with the plane of the base plate 111 as a reference.

[0275] refer to Figure 60A , combined Figure 60B and Figure 60C As can be seen, the light source board 201, with its mounting surfaces at different angles, is used to mount light-emitting elements. These elements emit light at different angles, collectively forming the light output of the LED lighting fixture. Compared to traditional LED lighting fixtures, the light output angle is larger and the light is softer. Using the base plate 111 as a reference plane, the light output angle of the LED lighting fixture can be 180°, meaning the light can illuminate all corners of the LED lighting fixture along the light output direction, avoiding dark areas.

[0276] refer to Figure 60BThe simplified light-emitting unit 21 is shown in the figure. Multiple light-emitting elements are arranged in different directions, allowing the light-emitting unit 21 to emit light in a 180° fan-shaped area centered on the light-emitting unit 21 in any plane, as shown in figure a. That is, in three-dimensional space, it is a hemispherical area centered on the light-emitting unit 21. (See Figure 21 for details.) Figure 60D .

[0277] refer to Figure 60C That is, by setting the light-emitting unit 21 with light-emitting bodies in different directions, the light emitted by the light-emitting unit 21, along the vertical line of the light-emitting unit 21 to both sides, the light-emitting angles b1 and b2 can reach the maximum angle of 90° defined by the vertical line and the base plate 111, thereby avoiding the appearance of dark areas in the light-emitting direction of the LED lighting fixture.

[0278] like Figure 54 , Figure 55 , Figure 64A As shown, a diffuser 222 is disposed above the photoelectric module 2. The diffuser 222 has a storage cavity 2225 for housing the photoelectric module 2. The diffuser 222 is fixedly connected to the support unit 1, and the photoelectric module 2 is disposed between the diffuser 222 and the support unit 1. The diffuser 222 is made of a material with light transmittance and light diffusion properties. Preferably, the diffuser 222 can be made of, but is not limited to, a PP (Polypropylene) diffuser plate. A diffuser 222 made of PP diffuser plate not only has high light transmittance but also good light diffusion effect, avoiding glare problems. The diffuser 222 can be selected with an arc or square structure depending on the specific implementation effect, enhancing the light diffusion effect while improving the aesthetics of the lamp.

[0279] like Figure 60A The figure shows a cross-sectional schematic diagram of an LED lighting fixture along the direction perpendicular to the photoelectric module in one embodiment of this application. As shown in the figure, the photoelectric module 2 located in the storage cavity 2225 emits light that is at least partly directed toward the back plate 12. That is, at least part of the emitted light is emitted from the diffuser 222 and projected onto the back plate 12. After being reflected by the back plate 12, it is finally emitted from the LED lighting fixture.

[0280] In another embodiment of this application, the back plate 12 has reflection and projection functions. The light emitted from the photoelectric module 2 is processed by the diffuser 222, and at least a portion of it is reflected by the back plate 12 before being emitted. At least a portion of it passes through the back plate 12 and is projected onto the base 11. After being reflected by the base 11, it is emitted from the back plate 12.

[0281] like Figure 55 and Figure 58As shown, preferably, the inner or outer wall of the diffuser 222 can be patterned, that is, a specific pattern structure is formed on the inner or outer wall, such as a striped structure, dotted protrusions or depressions, a frosted structure, etc., which is an array of micro-optical structures, i.e., a micro-array optical structure. When the photoelectric module 2 is housed in the receiving cavity 2225 and emits light, the excessively concentrated light can be effectively dispersed after the diffuse reflection or refraction of the patterned structure on the inner or outer wall, avoiding the problem of glare or dazzling light caused by a point light source in the lamp body, so that it has a uniform light emission effect and the light is softer. In this embodiment, preferably, a striped structure 2227 is provided on the inner wall of the diffuser 222.

[0282] like Figure 7 The simplified light path emission diagram shown indicates that the first light-emitting component 211” emits light upwards, which, together with the arc-shaped structure of the diffuser 222 and the patterned structure thereon, enhances the light diffusion effect and avoids glare. As for the light emitted by the second light-emitting component 212”, together with the reflective effect of the lower surface of the upper end face of the light source plate 201 and the inclined surface of the protrusion 123, all the side-emitting light is reflected to the side of the lamp, improving the uniformity of illumination and reducing the dark area.

[0283] like Figures 54 to 56 As shown, diffuser 222 has diffuser end caps 22210 at both ends along its length. The bottom of diffuser end caps 22210 is attached to the support unit 1. A locking groove 222101 is provided inside the diffuser end cap 22210 at the position corresponding to the position of the light source plate 201. The light source plate 201 is locked in the locking groove 222101. The diffuser 222 and the photoelectric module 2 are connected as one unit by the diffuser end caps 22210, which effectively prevents light leakage at both ends of the self-transmitting diffuser 222.

[0284] like Figures 54 to 57 As shown, the support unit 1 has a second end cap 4 at both axial ends. The diffuser end cap 22210 has a plug block 222102 on its outer side. The second end cap 4 has a plug hole 131 at the position corresponding to the plug block 222102 on its inner side. The mutual cooperation between the plug block 222102 and the plug hole 131 makes the installation and fixing between the diffuser end cap 22210 and the second end cap 4 quicker and more convenient. The plug block 222102 is inserted into the corresponding plug hole 131 to realize the connection between the diffuser end cap 22210 and the second end cap 4, and complete the assembly of the overall structure of the lamp body.

[0285] like Figure 54 As shown, a sensing device 6 may also be provided on the diffuser end cap 22210. The sensing device 6 can sense the external environmental conditions, such as light intensity, temperature, humidity and other data, and adjust the light output state of the lamp according to the external data.

[0286] like Figure 54 and Figure 55 As shown, in another specific embodiment, the LED lighting fixture may also be equipped with an emergency power module 34, which is disposed on the power module 34 and shares the power circuit board 41. The emergency power module 34 includes an emergency power supply 341 and an energy storage battery 52 disposed on the power circuit board 31. The emergency power supply 341 and the energy storage battery 52 are connected by wires and are electrically connected. Once the first power supply 32 is de-energized, the emergency power supply 341 is triggered to start and continue to supply power. Preferably, the diffuser end cover 22210 is correspondingly provided with an emergency test switch 343 and an emergency indicator light 344. The emergency test switch 343 serves as a switch for the safety and maintenance inspection of the LED lighting fixture. After the emergency test switch 343 is pressed, the emergency indicator light 344 lights up to indicate whether the emergency power module 34 is working properly.

[0287] like Figure 63A The above is a schematic diagram of the surface brightness of the lampshade in a square state according to one embodiment of this application. The brightness changes accordingly as the spacing between the LEDs and the spacing between the LEDs and the lampshade changes. Figure 63A This is a schematic diagram showing the surface brightness of a square lampshade with a 32.8mm gap between the LED beads and the lampshade, and an 8mm gap between the LED beads. Figure 63B This is a schematic diagram of the illuminance on a surface illuminated at a distance of 2.5m. Figure 63C This is the light distribution curve at this time.

[0288] Figure 64A This diagram illustrates the surface brightness of the lampshade when the distance between the LED and the curved lampshade is 32.8mm. Figure 64B This is a schematic diagram of the illuminance on a surface illuminated at a distance of 2.5m. Figure 64C This is the light distribution curve at this time.

[0289] In other embodiments, the light transmittance of the top and side surfaces of the diffuser 222 is the same.

[0290] In other embodiments, the light transmittance of the top and side surfaces of the diffuser 222 can differ significantly, such as being transparent or translucent.

[0291] In another embodiment of this application, reference is made to Figure 24BIn one embodiment of this application, the base 11 has at least one protrusion with a trapezoidal or V-shaped cross-section along its length or width direction on the side closest to the back plate 12. This protrusion is integrally formed on the base 11 and has an inclined surface pointing towards the back plate. At least one light-emitting unit 21 can be disposed on this inclined surface, or alternatively, a light-emitting component can be disposed thereon. For example, at least one first light-emitting component or a second light-emitting component may be attached to the inclined surface. Therefore, at least a portion of the light emitted by the light-emitting unit 21 (or the first or second light-emitting component) points towards the back plate 12, which can be an inclined plane or an arc surface. A light processing unit 22 is also disposed on the base 11. This light processing unit 22 can be a diffuser 222, which covers the light processing unit 22 and at least a portion of the light-emitting unit 21, and can emit and diffuse light emitted from the light-emitting unit. The backplate 12 has a light reflection function. At least a portion of the light processed by the light processing unit 22 is emitted directly from the light processing unit, and at least a portion of the light processed by the light processing unit 22 (or diffuser 222) is projected onto the backplate 12. After reflection by the backplate 12, the light is finally emitted from the LED lighting fixture, resulting in more uniform light emission from the LED lighting fixture. In one embodiment of this application, a power module 3 is also included, disposed on the side of the backplate 12 near the base 11. The height of the power module 3 is less than or equal to the distance between the highest point of the backplate 12 and the bottom plate 111 of the base 11.

[0292] Please see Figure 65 and Figure 66 , Figure 65 This is a front view of an LED lighting fixture according to one embodiment of this application. Figure 66 This is a schematic diagram of the back of an LED lighting fixture according to one embodiment of this application. Figure 65 As shown, the LED lighting fixture includes a support unit 1, which serves as the main frame of the LED lighting fixture. Other components of the LED lighting fixture are installed using the support unit 1 as the mounting reference. The support unit 1 also determines the overall shape of the LED lighting fixture. In this embodiment, the support unit 1 is approximately trumpet-shaped, meaning that one end of its opening is smaller than the other end. A diffuser 222 is provided at the end with the smaller opening. The diffuser 222 rests against the support unit 1 and together with the support unit 1, forms a relatively complete light-emitting surface.

[0293] See Figure 66 The support unit 1 is also connected to the base 11, that is, the base 11 covers the smaller end of the support unit 1, and the base 11 and the diffuser 222 abut against each other to form a relatively closed accommodating space, in which some electronic components and optical devices are arranged.

[0294] Please see Figure 67 , Figure 67 This is an exploded view of the front of the LED lighting fixture in this embodiment. As shown in the figure, the support unit 1 includes multiple back plates 12, which are connected end to end to form a cylindrical structure. The back plates 12 are inclined relative to the horizontal plane, so that the opening of the cylindrical structure formed by the back plates 12 is large at one end and small at the other, forming a trumpet-shaped structure. At one end of the back plate 12 along the light emission direction of the LED lighting fixture, i.e., the end with the large opening, it is bent horizontally to form a joint portion 122 of a certain length. The joint portion 122 is flat and forms a plane. When the LED lighting fixture is installed, the joint portion 122 is usually in contact with the mounting surface, such as a ceiling. The flat surface of the joint portion 122 allows the LED lighting fixture to have a better appearance when viewed from below after installation. At the other end of the back plate 12, i.e., the end with the small opening, multiple connecting portions 124, or at least one connecting portion 124, are provided. The connecting portion 124 extends from one end of the back plate 12 and is used to connect and fix the base plate 11. The connecting part 124 is provided with at least one opening, which corresponds to the opening on the base plate 11. The base plate 11 and the support unit 1 are fixed by bolts or rivets passing through the openings on the connecting part 124 and the base plate 11, respectively. One end of the base plate 11 includes at least one first base sidewall 112 and two second base sidewalls 113.

[0295] In this embodiment, the first base sidewall 112 extends to one side from the base plate 11, and the second base sidewall 113 is formed separately. One first base sidewall 112 and two second base sidewalls 113 are combined to form a semi-enclosed accommodating space for accommodating the power module 3. The semi-enclosed space formed by the first base sidewall 112 and the second base sidewall 113 is then fitted with the back plate 12 to form a relatively sealed space to accommodate the power module. In this way, it is not necessary to set up a separate power box for accommodating the power module 3, thereby reducing the cost of the lamp.

[0296] In this embodiment, a light-emitting unit 21 is also included. The light-emitting unit 21 is disposed on the base plate 11 and is completely covered by the diffuser 222. It is worth mentioning that the diffuser 222 is clamped and fixed by the support unit 1 and the base plate 11. During the assembly process, it is only necessary to lock the base plate 11 and the support unit 1 to fix the diffuser 222. The diffuser 222 does not require additional fixation. Traditionally, diffusers are usually disposed on one side of a component and fixed by means such as adhesive or other methods. The other side of the diffuser is the relatively weak side of the fixation. However, in this embodiment, the diffuser 222 is fixed by clamping and fixing it by the support unit 1 and the base plate 11. This means that there are components on both sides of the diffuser 222 to limit its movement. There is no risk of the diffuser 222 falling off. Moreover, the connection between the diffuser 222 and the support unit 1 and the base plate 11 is different from the traditional connection method of adhesive or welding. Replacing the component is simple and will not damage the original component.

[0297] Please see Figure 68 ,like Figure 68 This is a schematic diagram of the structure after the LED lighting fixture base plate 11 and the diffuser 222 are combined in this embodiment. As shown in the figure, in this embodiment, the first base sidewall 112 and the second base sidewall 113 form two semi-enclosed accommodating spaces, wherein at least one semi-enclosed accommodating space is used to accommodate the power module 3, and the other semi-enclosed accommodating space can be used to accommodate other electronic components or emergency power supplies, etc. The edge of the diffuser 222 also includes a plurality of (at least one) limiting members 2226, which extend along the direction parallel to the base plate 11 and exceed the opening of the smaller section of the support unit 1, interfering with one end of the back plate 12 to restrict the movement of the diffuser 222 along the light emission direction of the LED lighting fixture.

[0298] Please see Figure 69 ,like Figure 69 The above is a schematic diagram of the structure of the LED lighting fixture base plate 11 and the diffuser 222 after being combined from another perspective. As shown in the figure, multiple (or at least one) reinforcing structures 114 are provided on the base plate 11. The reinforcing structure 114 is a groove-shaped structure that protrudes in the opposite direction of the light emission of the LED lighting fixture, that is, it has a groove structure on the surface where the light-emitting unit 21 is set. The light-emitting unit 21 is set in the reinforcing structure 114 (groove structure), which can effectively realize the positioning of the light-emitting unit.

[0299] See Figure 70 This is a schematic diagram of the light-emitting unit 21 disposed in the reinforcing structure 114. The light-emitting unit 21 includes a plurality of first light-emitting components 2111, the structure of which is as described in the previous description of the light-emitting components.

[0300] Please see Figure 71 and Figure 74 , Figure 71This is a schematic diagram of the structure of an LED lighting fixture according to one embodiment of this application. Figure 74 This is a schematic diagram of another perspective of an LED lighting fixture according to one embodiment of this application. The LED lighting fixture 100 includes a support unit 1, which serves as the main structure of the LED lighting fixture 100. The support unit 1 includes a base 11 and a back plate 12. In this embodiment of the application, the base 11 and the back plate 12 are integrally formed. The base 11 includes a bottom plate 111, which is a flat surface. The back plate 12 is a curved surface extending outward from both ends of the base 11 (or bottom plate 111). The base 11 has a groove structure in which a photoelectric module 2 is disposed. The side facing the light emission direction of the LED lighting fixture is called the front, and the side away from the light emission direction of the LED lighting fixture is called the back. A power module 3 is disposed on the back of the base 11. The power module 3 is attached to the base 11, or in other words, the power module 3 is attached to the back of the support unit 1 and is disposed at least partially through the space formed by the curvature of the back plate 12. The LED lighting fixture 100 has a rectangular shape, and the photoelectric module 2 extends along the length or width of the LED lighting fixture.

[0301] Please see Figure 72 The figure shows an exploded view of an LED lighting fixture 100 according to an embodiment of this application. As shown, the support unit 1 of the LED lighting fixture 100 includes a base 11, a back plate 12 integrally extending from both ends of the base 11, and at least one side wall 13. The base 11, the back plate 12, and the side wall 13 are interconnected to form an accommodating space. One end of the back plate 12 is connected to the base 11, and the end away from the base 11 is raised and extended towards the light-emitting direction of the fixture. In other words, at least both ends are raised in the same direction relative to a plane. Further, the back plate 12 may be formed by bending a rectangular panel with opposite ends in the same direction.

[0302] In one embodiment of this application, the back panel 12 is a rectangular panel in its unbent state, and its long side is bent towards the center, that is, symmetrically bent to form an arc-shaped back panel 12.

[0303] In one embodiment of this application, the base plate 111 is a flat bottom surface, and the back plate 12 is an arc surface extending to both sides along the base plate 111, with the arc surface curving toward the same side of the base plate 111.

[0304] In one embodiment of this application, the back plate 12 is an arc-shaped back plate, and the back plates 12 are provided on both sides of the bottom plate 111, and the two back plates are symmetrically arranged about the bottom plate 111. The side wall 13 cooperates with the back plate 12 to form an arc-shaped groove, and the photoelectric module 2 is disposed in the arc-shaped groove. One side of the side wall 13 is connected to the arc of the back plate 12, that is, one side of the side wall 13 is an arc-shaped edge with the same arc as the back plate 12, and the opposite side is a straight edge. Its arc-shaped edge fits against the long edge of the back plate 12, and its straight edge forms a plane with the short edge of the back plate 12, thereby forming a regular arc-shaped groove.

[0305] The optoelectronic module 2 is disposed in the arc-shaped groove and is disposed perpendicular to the surface of the side wall 13, that is, disposed along the short side direction of the back plate 12. The optoelectronic module 2 includes a mounting bracket 26, a light-emitting unit 21 and a light processing unit 22. The light-emitting unit 21 includes a first light-emitting component 21, and the light processing unit 22 includes a first optical component 224, a second optical component 225 and a third optical component 226. The mounting bracket 26 is disposed along the short side direction of the back plate 12 (or the base plate 111), that is, disposed between the two vertical side walls 13 and attached to the base plate 111. Preferably, the mounting bracket 26 is disposed in the middle part of the base plate 111 along the length direction.

[0306] Please combine Figure 72 and Figure 73 ,in Figure 73 This is a cross-sectional schematic diagram of the optoelectronic module 2 along its width direction in one embodiment of this application.

[0307] As shown in the figure, the mounting bracket 26 is disposed on the base plate 111. The mounting bracket 26 includes a first mounting base surface 261 and a second mounting base surface 262, wherein the second mounting base surface 262 is inclined relative to the first mounting base surface 261. In one embodiment of this application, the number of second mounting base surfaces 262 is 2, and they are disposed along the length direction of the mounting bracket 26. The first mounting base surface 261 is attached to the base plate 111, and the two are directly or indirectly attached to each other, and can be fixed by means of glue, welding, snap-fit, fitting, screws and nuts, etc.

[0308] Please see Figure 73A first light-emitting component 211 is disposed on the surface of the first mounting base 261 that is away from the base plate 111. The first light-emitting component 211 extends along the length direction of the first mounting base 261 and includes a first circuit board 2111 and at least one first light-emitting element 2112 disposed on the side of the first circuit board 2111 away from the first mounting base 261. The first circuit board 2111 is a material that can directly or indirectly achieve electrical conduction, such as a PCB, FPC, aluminum substrate, or BT substrate. The first light-emitting element 2112 includes an array of multiple LED chips, or it can be an array of other light sources or a single light source. In one embodiment of this application, at least one first light-emitting element 2112 is disposed on the first circuit board 2111, and the light emission direction of the first light-emitting element 2112 points away from the base plate 111. Along the light emission direction of each first light-emitting element 2112, a corresponding first optical component 224 is provided. The first optical component 224 is approximately hemispherical in shape and can be entirely enclosed on the first light-emitting element 2112, so that the first light-emitting element 2112 is housed within a relatively sealed space formed by the first optical component 224 and the first mounting base 261. This isolates the first light-emitting element 2112 from the external environment, thus protecting it. Simultaneously, the first optical component 224 is approximately a spherical structure with multiple protrusions, which can diffuse the light emitted from the first light-emitting element 2112, ensuring that at least a portion of the light emitted from the first light-emitting element 2112 exits directly from the first optical component 224.

[0309] In one embodiment of this application, the first optical component 224 has an extension 2241 that fits against the first mounting base 261, and the extension 2241 is disposed along the edge of the first optical component 224. The first optical component 224 has a specific surface shape, such as in one embodiment, its radial cross-section is an outwardly convex arc surface, which can realize the functions of light transmission and light diffusion.

[0310] The second optical component 225 is disposed along the length of the mounting bracket 26. In one embodiment, the second optical component 225 is composed of multiple reflectors 2251, which are integrally formed to form the second optical component 225. The reflector 2251 is open at both ends, with one end opening smaller than the other end opening. That is, the projection of the larger end perpendicularly onto the first mounting base surface 261 can completely encompass the projection of the smaller end onto the first mounting base surface 261. In other words, the reflector 2251 has a smaller opening and a larger opening. The smaller end of the reflector 2251 (opening) abuts against the extension 2241 of the first optical component 224, so that the first optical component 224 is contained within the cup of the reflector 2251, and the first optical component 224 is pressed firmly onto the first circuit board 2111. In this application, the height of the first optical component 224 is less than or equal to the height of the reflector 2251, that is, less than or equal to the height of the second optical component 225 (this height is only along the light emission direction).

[0311] In one embodiment of this application, the first optical component 224 is a freeform lens, which, together with the reflector cup 2251, achieves a large-angle batwing-shaped light output. The freeform lens, i.e., the first optical component 224, achieves a large-angle light output and uniform illumination distribution, while the reflector cup 2251 constrains the light output angle, mixes the light spot to a certain extent, and promotes the effect of uniform illumination.

[0312] The second mounting base surface 262 of the mounting bracket 26 is arranged along its length direction, and the two second mounting base surfaces 262 are arranged at a certain distance, so that the first light-emitting component 211 can be placed between the two second mounting base surfaces 262. That is, the minimum distance between the two second mounting base surfaces 262 along the width direction of the mounting bracket 26 is greater than or equal to the dimension of the first light-emitting component 211 along the width direction of the mounting bracket 26. In other words, the two second mounting base surfaces 262 of the mounting bracket 26 and the first mounting base surface 261 form an accommodating space, and the first light-emitting component 211 is disposed within the accommodating space. The second mounting base surface 262 is integrally formed with the mounting bracket 26, and the second mounting base surface 262 includes a first bending surface 2621 and a second bending surface 2622. The second light-emitting component 212 is disposed on the outer surface of the first bending surface 2621, that is, the second light-emitting component 212 is disposed outside the accommodating space. The second light-emitting component 212 has the same composition as the first light-emitting component 211. The second light-emitting component 212 achieves lateral light emission, that is, light emission pointing towards the curved surface of the back plate 12. In other words, the first light-emitting component 211 and the second light-emitting component 212 provide light emission in different directions. One end of the first bending surface 2621 is connected to the first mounting base 261, and the other end is connected to the second bending surface 2622. One end of the second bending surface 2622 is connected to the first mounting base 261, and the other end is provided with a connecting part 22511. The connecting part 22511 is a flat bearing surface used to support the second optical component 225, that is, to support the end with the larger opening of the reflector cup 2251. A first insertion groove 225110 is provided on the side of the connecting part 22511 facing the first mounting base 261. Correspondingly, a second insertion groove 2311 is also provided on the first mounting base 261. The third optical component 226 is a sheet-like light processing element. At least one third optical component 226 is fixed by being inserted into the first insertion slot 225110 and the second insertion slot 2311, and is positioned in the light emission direction of the second light-emitting component 212. The third optical component 226 includes at least two light processing functions: light diffusion and light projection. In some embodiments, the third optical component 226 can be a diffuser plate. In this embodiment, since the mounting bracket 26 has two second mounting base surfaces 262, and the two second light-emitting components 212 are respectively disposed on the two first bending surfaces 2621, there are two third optical components 226 respectively disposed in the light emission direction of the two second light-emitting components 212. In other embodiments of this application, only one second light-emitting component 212 and one third optical component 226 may be provided. Through the first light-emitting component 211 and the second light-emitting component 212, in conjunction with the first optical component 224, the second optical component 225, and the third optical component 226, the LED lighting fixture 100 includes at least two different light emission forms.That is, part of the light emitted is the light emitted by the first light-emitting component 211 after being processed by the first optical component 224 and the second optical component 225; the other part of the light emitted is the light emitted by the second light-emitting component 212, which, after passing through the third optical component 226, is projected onto the base plate 111 (or the base plate back plate 12), and after being reflected by the base plate 111 (or the base plate back plate 12), is finally emitted from the LED lighting fixture 100; so that the LED lighting fixture has good light emission in its center and good light emission in its side direction, its light emission is uniform and avoids the dark areas that may exist in the LED lighting fixture, while the illuminance in the center and the surrounding area is uniform, reducing glare.

[0313] In another embodiment of this application, the second mounting base 262 and the first mounting base 261 are formed independently before assembly.

[0314] In another embodiment of this application, at least one second light-emitting component 212 is provided on the first bending surface 2621 and the second bending surface 2622.

[0315] In another embodiment of this application, the second mounting base 262 is a flat rectangular panel.

[0316] In another embodiment of this application, the third optical component 226 is an arc surface that convexes outward along the light emission direction of the second light-emitting component 212.

[0317] In another embodiment of this application, the third optical component 226 is an inwardly concave arc surface along the light emission direction of the second light-emitting component 212.

[0318] In one embodiment of this application, at least a portion of the light emitted by the first light-emitting component 211 is processed by the first optical component 224 and then emitted directly from the LED lighting fixture 100; in addition, at least a portion of the light processed by the first optical component 224 is refracted onto the inner wall of the reflector 2251 (the side of the reflector 2251 closest to the first light-emitting component 211), and is emitted directly after being reflected once by the inner wall of the reflector 2251.

[0319] In another embodiment of this application, at least a portion of the light emitted by the first light-emitting component 211 is processed by the first optical component 224 and refracted onto the inner wall of the reflector 2251 (the side of the reflector 2251 closest to the first light-emitting component 211). After being reflected at least once by the inner wall of the reflector 2251, it is reflected at least once by the outer wall of the first optical component 224 (the surface of the first optical component 224 away from the first light-emitting component 211) before being emitted from the LED lighting fixture 100.

[0320] Please see Figure 74This is a schematic diagram of the back of an LED lighting fixture 100 according to one embodiment of this application. The LED lighting fixture 100 also includes a power module 3. The power module 3 is disposed on the side opposite to the light emission direction of the support unit 1, and its surface is attached to the arcuate portion of the back plate 12. The arcuate portion of the back plate 12 serves as part of the encapsulation structure of the power module 3, thereby reducing production costs. The power module 3 can control the light source of the LED lighting fixture 100, specifically, it can control the first light-emitting component 211 and the second light-emitting component 212 respectively. The dimming and color-adjusting functions of the LED lighting fixture are realized through the cooperation of the first light-emitting component 211 and the second light-emitting component 212.

[0321] In another embodiment of this application, the power module 3 can simultaneously control the first light-emitting component 211 and the second light-emitting component 212 to achieve the dimming and color-adjusting function of the LED lighting fixture.

[0322] In another embodiment of this application, the base 11 and the side wall 13 are integrally formed, for example by integral stamping of metal material.

[0323] Please see Figure 75 and Figure 76 , Figure 75 This is a front view of an LED lighting fixture according to another embodiment of this application. Figure 76 This is a schematic diagram of the rear of an LED lighting fixture according to another embodiment of this application.

[0324] like Figure 75 As shown, the LED lighting fixture 100 includes a support unit 1, which includes a base 11, two back plates 12 on both sides of the base 11, and side walls 13. The base 11, back plates 12, and side walls 13 are interconnected. The support unit 1 serves as the main frame of the LED lighting fixture and is used to install related components of the LED lighting fixture. The base 11 includes a bottom plate 111, which is a flat surface. The back plates 12 are arc-shaped structures that bend and extend in the same direction on both sides. That is, the base 11, the two back plates 12, and the two side walls 13 form a groove structure or accommodating space.

[0325] The back panel 12 has at least two ends that curve in the same direction. More specifically, the back panel 12 can be formed by bending opposite ends of a rectangular panel in the same direction.

[0326] In another embodiment of this application, the back panel 12 is a rectangular panel in its unbent state, and its long side is bent towards the center, that is, symmetrically bent to form an arc-shaped back panel 12.

[0327] In one embodiment of this application, the base 11 has a flat bottom plate 111. The side wall 13, back plate 12, and base 11 cooperate to form an arc-shaped groove (relatively flat in the middle). A photoelectric module 2 is disposed in the arc-shaped groove. One side of the side wall 13 is joined to the arc of the back plate 12, that is, one side of the side wall 13 has the same arc-shaped edge as the back plate 12, and the opposite side is a straight edge. The straight edge is coplanar with the short side of the bottom plate 111, thereby forming a regular arc-shaped groove. An outer frame 4 is provided on one end of the support unit 1 along the light emission direction. The outer frame 4 is fixed to the side wall 13 and the back plate 12 to strengthen the structural strength of the LED lighting fixture and improve its aesthetics. A power module 3 (or drive module) is disposed on the outside of the arc-shaped groove of the support unit 1 in the arc-shaped portion of the back plate 12.

[0328] Please see Figure 76 , Figure 76 This is a schematic diagram of the back of an LED lighting fixture according to another embodiment of this application. As shown, the power module 3 is set to conform to the curvature of the back plate 12 and at least partially overlaps with the base plate 111, which can minimize the volume of the LED lighting fixture. The LED lighting fixture 100 also includes a hanging support 5, which can be disposed on the side wall 13, the base plate 111, the back plate 12, or the outer frame 4. In one embodiment of this application, it is disposed on one or more locations on the outer frame 4 by screws or welding, and is used to connect and fix the LED lighting fixture to the usage environment. The base plate 111 is provided with a base plate mounting part 1111, which protrudes in the light-emitting direction of the LED lighting fixture, that is, it is a recessed structure when viewed from the back of the LED lighting fixture. Of course, the base plate mounting part can also be referred to as a base plate reinforcement structure. In this embodiment of this application, there are two base plate mounting parts 1111, which are disposed perpendicular to the side wall 13 and are parallel to each other. The base plate mounting part 1111 is integrally formed with the base plate 111 by a stamping process, that is, the base plate mounting part 1111 is directly formed by stamping the base plate 111 without the need for additional materials.

[0329] Please see Figure 77 , Figure 77This is a schematic diagram of the chassis structure in one embodiment of this application. As shown in the figure, the base plate mounting part 1111 is integrally formed on the base plate 111, that is, it is integrally stamped onto the base plate 111 along the light emission direction of the LED lighting fixture. It protrudes in the light emission direction of the LED lighting fixture and appears as a groove structure when viewed from the side of the base plate 111 away from the light emission direction. It extends along the length direction of the base plate 111. Of course, in other embodiments, it can extend in other directions, such as the width direction. In this embodiment, the base plate mounting part 1111 is set as a frustum structure extending along the length direction of the base plate 111. It has a relatively flat top surface and side surface, wherein the top surface is approximately parallel to the base plate 111, and the side surface is approximately pointing towards the back plate 112. In this application, the base plate mounting part 1111 can serve as a reinforcing rib, that is, to expand the planar structure of the base plate 111 into a three-dimensional spatial structure without adding extra material, thereby improving its overall strength; on the other hand, the base plate mounting part 1111 can also be used as a light source mounting part, that is, its frustum surface can be covered with a light source plate, and multiple frustum surfaces can be simultaneously equipped with light source plates to achieve multi-directional light emission.

[0330] Please see Figures 78-80 ,like Figure 78 The figure shown is an exploded view of an LED lighting fixture according to an embodiment of this application. Figure 79 The figure shown is a cross-sectional view of an LED lighting fixture according to an embodiment of this application, along the direction parallel to the sidewall. Figure 80 As shown Figure 79 A magnified view of point E in the image. Combined with... Figure 78 and Figure 79 In one embodiment of this application, the optoelectronic module 2 includes a light processing unit 22, which includes a diffuser 222 and diffuser end caps 22210 disposed at both ends of the diffuser 222. The diffuser 222 is arched, that is, flat in the middle and bent downward on both sides. The diffuser 222 is fixed to the relatively flat part of the base plate 111 or the back plate 12, and both ends are sealed by the diffuser end caps 222104.

[0331] Combination Figure 78 , Figure 79 It can be seen that the base plate 111 is provided with a first light-emitting component 211 and a second light-emitting component 212, wherein the first light-emitting component 211 is disposed between the second light-emitting component 212, and the diffuser 222 completely covers the first light-emitting component 211 and the second light-emitting component 212. The diffuser 222, the base plate 111, and the diffuser end cap 22210 are combined to form a sealed space for accommodating the first light-emitting component 211 and the second light-emitting component 212.

[0332] Power module 3 includes a power box 35 and a first power supply 32, combined with Figure 78 and Figure 79It can be seen that the first power supply 32 is set in the power supply box 35, and the other parts of the power supply box 35 are attached to the back plate 112. Under the premise of ensuring the integrity of the lamp appearance, the impact of the setting of the first power supply 32 on the actual volume of the LED lighting lamp is minimized.

[0333] Combination Figure 79 and Figure 80 The base plate 111 is provided with a first light-emitting component 211 and two second light-emitting components 212. The first light-emitting component 211 is directly attached to the base plate 111. The second light-emitting components 212 are disposed on the mounting portion 1111 of the base plate, that is, they are attached to the inclined surface of the mounting portion 1111 of the base plate in the direction of light emission of the LED lighting fixture, and the light emission direction of the second light-emitting components 212 is generally towards the back plate 112. In this embodiment of the application, the included angle between the second light-emitting components 212 is an acute angle, that is, the ends of the two second light-emitting components 212 away from the base plate 111 are close to each other, and their inclined sides just cover the inclined surface of the mounting portion 1111. The first light-emitting component 211 is directly attached to the base plate 111. Of course, the base plate 111 can also be provided with a groove structure to accommodate the first light-emitting component 211. The first light-emitting component 211 and the second light-emitting component 212 have different light emission directions, that is, the light source of the LED lighting fixture has at least two different light emission directions, thereby reducing or avoiding the formation of obvious dark areas on the LED lighting fixture. The light emitted by the second light-emitting component 212 is processed by the diffuser 222, and at least part of it is emitted directly from the diffuser 222 (or light processing unit 22) to the outside of the LED lighting fixture. At least part of it is projected onto the back plate 12 and finally emitted from the LED lighting fixture after being reflected by the back plate 12.

[0334] In one embodiment of this application, the light emitted by the second light-emitting component 212, after being processed by the diffuser 222, is at least partially emitted directly from the diffuser 222 (or light processing unit 22) to the outside of the LED lighting fixture, at least partially projected onto the back plate 12, and after being reflected by the back plate 12, reflected again to the diffuser 222 (or light processing unit 22), and finally emitted from the LED lighting fixture after being reflected by the diffuser 222 (or light processing unit 22).

[0335] In one embodiment of this application, the light emitted by the first light-emitting component 211 is processed by the diffuser 222 (or light processing unit 22), and at least part of it is directly emitted from the diffuser 222 (or light processing unit 22) to the outside of the LED lighting fixture, and at least part of it is projected onto the back plate 12, and finally emitted from the LED lighting fixture after being reflected by the back plate 12.

[0336] In one embodiment of this application, the light emitted from the first light-emitting component 211 is processed by the diffuser 222 (or light processing unit 22), and at least part of it is directly emitted from the diffuser 222 (or light processing unit 22) to the outside of the LED lighting fixture. At least part of it is also projected onto the back plate 12, and after being reflected by the back plate 12, it is reflected again to the diffuser 222, and after being reflected by the diffuser 222, it is finally emitted from the LED lighting fixture.

[0337] In one embodiment of this application, at least a portion of the light emitted by the first light-emitting component 211 is processed by the diffuser 222 (or light processing unit 22) and then emitted directly.

[0338] Please see Figure 81 The diagram shows a second light-emitting component 212 in one embodiment of this application. The second light-emitting component 212 is composed of two second circuit boards 2121 arranged at an acute angle. A second light-emitting body 2122 is arranged on the second circuit board 2121 along the length direction. The second light-emitting body 2122 can be an LED chip array.

[0339] In one embodiment of this application, the diffuser 222 (or light processing unit 22) may be made of materials such as glass, resin, or PC.

[0340] In one embodiment of this application, the diffuser 222 (or light processing unit 22) has one or more functions of light transmission, light refraction (or diffusion), light reflection, and light diffraction by means of its own material.

[0341] In one embodiment of this application, the surface of the diffuser 222 (or light processing unit 22) may be patterned, for example, by setting a special microstructure array to change the light emission effect, such as reducing glare from the lamp.

[0342] See below Figure 82 and Figure 83 , Figure 82 This is a front view of an embodiment of an LED lighting fixture according to another embodiment of this application. Figure 83This is a schematic diagram of the rear view. As shown, the basic structure of this LED lighting is basically the same as described above, including a support unit 1 as the main body of the lamp. The support unit 1 includes a base 11, two back plates 12 disposed along the long side of the base 11, and at least two side walls 13 disposed along the short side of the base 11 and the short side of the back plates 12. The base 11, back plates 12, and side walls 13 are interconnected to form a recessed accommodating space for accommodating the photoelectric module 2, that is, at least a portion of the photoelectric module 2 is accommodated in this accommodating space. The base 11 includes a flat base plate 111, and the back plate 12 includes an arc-shaped curved surface. The front of the curved surface is a concave diffusion and reflection surface for diffusing and reflecting light, and the back of the curved surface is a convex surface for mounting the power module 3. The long side of the base 11 is connected to the back plate 12, and the long sides of both sides of the base 11 are connected to the back plate 12. In some embodiments, the base 11 and the back plate 12 are designed and assembled separately, while in some embodiments, the base 11 and the back plate 12 are integrally formed. The optoelectronic module 2 is mounted on the base 11. The optoelectronic module 2 includes a diffuser 222, with diffuser end caps 22210 at both ends. The diffuser end caps 22210 fix the diffuser 222 to the base 11, forming a sealed space with the base 11. A sensing device 6 is mounted on the diffuser end cap 22210 to sense external environmental information and transmit this information to the power supply 3 (e.g., [missing information]). Figure 83 The power supply 3 can control the light output of the LED lighting fixture according to the messages transmitted by the sensing device 6. The LED lighting fixture also includes an outer frame 4, which is disposed on the side wall 13 and the back plate 12 for further fixing the side wall 13 and the back plate 12. The power supply module 3 is disposed on the back of the back plate 12. The power supply module 3 includes a power box 35 and a junction box 37. The power box 35 and the junction box 37 are integrally formed and are perpendicular to each other, that is, disposed on the adjacent edges of the LED lighting fixture. In one embodiment of this application, the junction box 37 is fixed to the back of the back plate 12 and fits the curved surface of the back plate 12. The power box 35 is further connected to the side wall 12. The power box 35 is provided with a color temperature adjustment switch 351 and a light intensity adjustment switch 352, so that the LED lighting fixture can achieve different color temperatures and light intensities under the control of the color temperature adjustment switch 351 and the light intensity adjustment switch 352.

[0343] In one embodiment of this application, the base 11 is provided with an integrally formed base plate mounting part 1111. The base plate mounting part 111 is implemented as a protrusion into the accommodating space formed by the base 11, the back plate 12 and the side wall 13, and is a trapezoidal protrusion.

[0344] See Figure 84This is an exploded view of an LED lighting fixture according to an embodiment of this application. As shown in the figure, the photoelectric module 2 further includes a light-emitting unit 21. The light-emitting unit 21 is disposed on the base plate mounting portion 1111 of the base 11, which has a trapezoidal protrusion structure, and extends along the length direction of the base plate mounting portion 1111. A diffuser 222 is disposed on the light-emitting direction of the light-emitting unit 21 and completely covers the light-emitting unit 21.

[0345] See Figure 85 ,for Figure 84 The enlarged view at point F in the figure shows that the light-emitting unit 21 includes a first light-emitting component 211 and a second light-emitting component 212. The first light-emitting component 211 is generally parallel to the base plate 111, and includes a first circuit board 2111 and at least one first light-emitting body 2112 disposed on the first circuit board 2111. The first light-emitting bodies 2112 are evenly distributed on the first circuit board 2111.

[0346] The second light-emitting component 212 includes a second circuit board 2121 and at least one second light-emitting element 2122 disposed on the second circuit board 2121, wherein the second light-emitting elements 2122 are uniformly distributed on the second circuit board 2121.

[0347] The second light-emitting component 212 and the first light-emitting component 211 are inclined to each other, wherein the angle between the surface of the second light-emitting body 2122 of the second light-emitting component 212 and the base plate 111 is greater than or equal to 90 degrees, so that the light emitted by the second light-emitting body 2122 is more easily emitted from the LED lighting fixture.

[0348] See Figure 86 ,for Figure 84 The enlarged view at point G in the figure shows that the trapezoidal protrusion of the base plate mounting part 1111 has a top surface 11111 parallel to the base plate 111 and two side surfaces 11112 inclined relative to the base plate 111. The first light-emitting component 211 is disposed on the top surface 11111 and attached to it, and the second light-emitting component 212 is disposed on the side surface 11112 and attached to it. That is, by the top surface 11111 and the side surface 11112 being inclined relative to each other, the first light-emitting component 211 disposed on the top surface 11111 and the second light-emitting component 212 disposed on the side surface 11112 are inclined relative to each other, so that the light-emitting unit 21 has light emission in at least two directions.

[0349] At least a portion of the light emitted by the first light-emitting component 211 is emitted directly from the diffuser 222, and at least a portion of the light emitted from the diffuser 222 is projected onto the back plate 12 and emitted from the LED lighting fixture after being reflected by the back plate 12.

[0350] At least a portion of the light emitted by the second light-emitting component 212 is emitted directly from the diffuser 222, and at least a portion of the light emitted from the diffuser 222 is projected onto the back plate 12, and after being reflected by the back plate 12, it is emitted as an LED lighting fixture.

[0351] In some embodiments, all the light emitted by the first light-emitting component 211 is emitted directly from the diffuser 222.

[0352] See Figure 87 This is a schematic diagram of the situation after removing the diffuser in one embodiment of this application. As shown in the figure, the shortest distance from the light-emitting element 21 to the long side of the diffuser 222 is La, and the vertical distance from the long side of the diffuser 222 to the edge of the back plate 12 is Lb, where 0.5≤Lb / La≤2, and more specifically, 1≤Lb / La≤1.5. In this application, the height of the LED lighting fixture is set to Lc, or in other words, the distance from the base plate 111 to the highest point of the back plate 12 is Lc, where 1≤La / Lc≤2, and 1≤La / Lc≤6.

[0353] It should be noted that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0354] In summary, on the one hand, the LED lighting fixture disclosed in this application has a second light-emitting component obliquely arranged around the first light-emitting component, so that the light emitted by the second light-emitting component is directed towards the peripheral area of ​​the first light-emitting component, thereby forming a highly uniform light pattern distribution when combined with the light emitted by the first light-emitting component. Furthermore, a beam control component for changing the light path is provided on the light-emitting side of the second light-emitting component, so as to change the light originally directed towards the area directly below the first light-emitting component to the area directed towards the peripheral area of ​​the first light-emitting component, thereby making the light emitted by the second light-emitting component mainly distributed in the peripheral area of ​​the first light-emitting component, forming a batwing light pattern or near-batwing light pattern when combined with the light emitted by the first light-emitting component, further improving the uniformity of the light emitted by the fixture. On the other hand, the LED lighting fixture disclosed in this application has a third light-emitting component with its beam centerline facing the support unit of the LED lighting fixture, thereby illuminating the area on the support unit that cannot be illuminated by the first light-emitting component, increasing the uniformity of light on the surface of the support unit and avoiding dark areas.

[0355] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. An LED lighting fixture, characterized in that, include: A support unit includes a base, two back plates, and two side walls. The base includes a bottom plate. The two back plates are respectively connected to two opposite sides of the base. The two side walls are respectively connected to another opposite side of the base. The back plates are inclined at 0 to 90 degrees relative to the base. The side of the side wall connected to the base is connected to the two back plates. The two side walls, the base, and the two back plates are connected to form an accommodating space. An optoelectronic module is disposed on the base and at least partially disposed within the accommodating space; A power module, wherein the power module is disposed outside the accommodating space and is attached to the support unit; The outer frame is disposed at one end of the support unit along the light emission direction of the LED lighting fixture, and is connected and fixed to the two side walls and the two back plates; Hanging support, the hanging support is disposed on the back plate and / or the side wall; The optoelectronic module includes a light-emitting unit and a light-processing unit. The light-processing unit includes a diffuser and diffuser end caps disposed at both ends of the diffuser. The diffuser has an arc-shaped structure and is positioned in the light-emitting direction of the light-emitting unit, completely covering the light-emitting unit. The light emitted by the optoelectronic module at least partially penetrates the diffuser and is projected onto the back plate. The light-emitting unit includes multiple sets of light-emitting components, which are arranged in parallel on the base plate; the diffuser end caps are disposed at both ends of the diffuser, the diffuser is fixed to the support unit by the diffuser end caps, and a sensing device is disposed on the diffuser end caps.

2. The LED lighting fixture according to claim 1, characterized in that: The light-emitting component includes multiple sets of first light-emitting components. Each first light-emitting component includes a first circuit board and multiple first light-emitting elements disposed on the first circuit board. The first light-emitting elements are evenly distributed on the first circuit board.

3. The LED lighting fixture according to claim 2, characterized in that: The center line of the light beam of the first light-emitting component is perpendicular to the base.

4. The LED lighting fixture according to claim 3, characterized in that: The power module includes a power circuit board and an emergency power module disposed on the power circuit board. The emergency power module includes an emergency power supply and an energy storage battery disposed on the power circuit board. The emergency power supply is electrically connected to the energy storage battery.

5. The LED lighting fixture according to claim 4, characterized in that: The shortest distance from the light-emitting unit to the long side of the diffuser is La, and the vertical distance from the long side of the diffuser to the edge of the back plate is Lb, where 0.5≤Lb / La≤2.

6. The LED lighting fixture according to claim 5, characterized in that: If the distance from the bottom plate to the highest point of the back plate is Lc, then 1≤La / Lc≤2, 1≤La / Lc≤6.

7. The LED lighting fixture according to claim 6, characterized in that: The diffuser extends along the length of the LED lighting fixture, and a micro-array optical structure is provided on the inner or outer wall of the diffuser.

8. The LED lighting fixture according to claim 7, characterized in that: The light-emitting unit includes a first light-emitting component and a second light-emitting component, and the power module controls the first light-emitting component and the second light-emitting component respectively to achieve dimming and color adjustment.

9. The LED lighting fixture according to claim 7, characterized in that: The light-emitting unit includes a first light-emitting component and a second light-emitting component, and the power module simultaneously controls the first light-emitting component and the second light-emitting component to achieve dimming and color adjustment.

10. The LED lighting fixture according to claim 8 or 9, characterized in that: The light emitted by the first light-emitting component, after the diffusion process, is at least partially emitted directly from the diffuser to the outside of the LED lighting fixture, and at least partially projected onto the back plate, and finally emitted from the LED lighting fixture after being reflected by the back plate.

11. The LED lighting fixture according to claim 8 or 9, characterized in that: The light emitted from the first light-emitting component, after being processed by the diffuser, is at least partially emitted directly from the diffuser to the outside of the LED lighting fixture, at least partially projected from the diffuser onto the back plate, reflected again by the back plate to the diffuser, and finally emitted from the LED lighting fixture after being reflected by the diffuser.

12. The LED lighting fixture according to claim 8 or 9, characterized in that: At least a portion of the light emitted by the first light-emitting component is emitted directly after being processed by the diffuser.

13. The LED lighting fixture according to claim 8 or 9, characterized in that: The light emitted from the second light-emitting component, after being processed by the diffuser, is at least partially emitted directly from the diffuser to the outside of the LED lighting fixture, at least partially projected from the diffuser onto the back plate, reflected again by the back plate to the diffuser, and finally emitted from the LED lighting fixture after being reflected by the diffuser.

14. The LED lighting fixture according to claim 4, characterized in that: The base plate has a base plate mounting portion, which has a top surface parallel to the base plate and a side surface inclined relative to the base plate, and the first light-emitting component is disposed on the top surface.

15. The LED lighting fixture according to claim 14, characterized in that: It also includes a second light-emitting component, which is disposed on the side; at least a portion of the light emitted by the second light-emitting component is emitted from the diffuser and projected onto the back plate.

16. The LED lighting fixture according to claim 15, characterized in that: The second light-emitting component and the first light-emitting component are tilted relative to each other, and the included angle between them is greater than or equal to 90 degrees.

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