Light source module and lighting fixture

Abstract

This invention discloses a light source module and a lighting fixture. The light source module can be fixedly connected to a chassis via a pre-installation structure. The light source module has a hollow area and includes a back plate, a light source plate, and a light distribution element that are sequentially connected and fixed. Positioning and automatic correction structures are provided on the back plate and the light source plate. The entire assembly process uses a stacked snap-fit ​​method. The positioning and automatic correction structures fix the light distribution element relative to the light source plate, improving light distribution accuracy. The light distribution lens is offset from the light source to avoid the formation of bright spots or dark areas. The pre-installation structure allows for accurate alignment of the mounting components before installation, improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to a light source module and a lighting fixture using the light source module. Background Technology

[0002] With the continuous progress and development of the lighting industry, people's requirements for the installation of lighting fixtures are constantly increasing. Especially now that labor costs and aesthetic standards are constantly rising, the requirements for the ease of installation and disassembly of lighting fixtures as well as their aesthetics are also getting higher and higher.

[0003] Currently, many lamps on the market have uneven surface brightness, exhibiting a dark center and bright periphery, similar to the visual effect of old-fashioned circular light tubes, which is uncomfortable to look at. Furthermore, other components inside the modular lamps can also block the light emitted by the light source, creating shadows on the lamps. Most lamp sticker assembly methods require flipping parts to complete the assembly, which is inefficient, unsuitable for automated production, and costly, and also prone to damage during the process. Secondly, the installation of mounting components often uses forced pressing without pre-positioning, easily causing tilting during installation, leading to improper installation or damage to the lamp body or lens after forced installation. Thirdly, due to unavoidable factors such as assembly and manufacturing precision, the light distribution of the light source module deviates significantly from the actual design, resulting in inaccurate lens light distribution, uneven light output, and requiring a high level of expertise from the installers.

[0004] Therefore, existing technologies have shortcomings and urgently need improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a light source module and a lighting fixture. The light source module is fixedly connected by a snap-fit ​​method. Through the positioning structure, automatic correction structure and pre-installation structure, the assembly accuracy and efficiency of the light source module are improved. By offsetting the light source and setting the arc-shaped driving cavity, the problem of shadows on the lighting fixture is solved.

[0006] This invention provides a light source module with a hollowed-out area, including a back plate, a light source plate, and a light distribution element that are sequentially connected and fixed. The light source module further includes: a pre-installation structure, through which the light source module can be fixedly connected to a mounting base, including at least one mounting hole and at least one mounting component on the light distribution element; a positioning structure, disposed on the back plate and the light source plate, through which the light source plate can be pre-fixed to the back plate; and an automatic correction structure, disposed on the light source plate and the light distribution element, which enables the light distribution element and the light source plate to be relatively fixed. The light source plate includes multiple light sources and a driving assembly, and the light distribution element includes multiple light source cavities and a driving cavity. The light sources are correspondingly housed within the light source cavities, and the driving assembly is housed within the driving cavity. At least one light source near the driving cavity is offset from the center position of the corresponding light source cavity.

[0007] Optionally, in some embodiments of the present invention, the positioning structure includes a prepositioning post and a prepositioning hole; wherein the prepositioning post and / or the prepositioning hole are provided on the back plate, and the prepositioning hole and / or the prepositioning post are correspondingly provided on the light source plate; the prepositioning post can pass through the prepositioning hole to fix the light source plate to the back plate.

[0008] Optionally, in some embodiments of the present invention, the diameter of the prepositioning post is less than or equal to the diameter of the prepositioning hole.

[0009] Optionally, in some embodiments of the present invention, the automatic correction structure includes: a correction post and an automatic correction via; the correction post is disposed on the side of the light distribution element near the light source plate; the automatic correction via is disposed on the light source plate and corresponds to the correction post; wherein the correction post and the automatic correction via are connected in a cooperating manner, so that the light distribution element and the light source plate are relatively fixed.

[0010] Optionally, in some embodiments of the present invention, the automatic correction structure further includes a correction column avoidance hole; the correction column avoidance hole is disposed on the back plate and corresponds to the correction column and the automatic correction through hole, and is used to avoid the correction column.

[0011] Optionally, in some embodiments of the present invention, the light source module further includes a connection structure disposed on the back plate and the light distribution element, and the light distribution element is connected to the back plate through the connection structure.

[0012] Optionally, in some embodiments of the present invention, the connection structure includes a first slot and a first claw; wherein the first slot and / or the first claw are provided on the back plate, and the first claw and / or the first slot are correspondingly provided on the light distribution element; the first slot can cooperate with the first claw to snap the light distribution element to the back plate.

[0013] Optionally, in some embodiments of the present invention, the connection structure further includes a first latching position and a second latching position; wherein the first latching position is provided on the back plate, and the second latching position is provided on the light distribution element; the first latching position can cooperate with the second latching position to latch the light distribution element to the back plate.

[0014] Optionally, in some embodiments of the present invention, the pre-installation structure includes: at least one mounting hole disposed on the light distribution element and located on the inner side of the hollowed-out area, wherein the mounting hole is provided with a pre-position and an installation position, the pre-position being located on the light distribution side of the light distribution element, and the installation position being located away from the light distribution side towards the connection side of the light distribution element; and at least one mounting member capable of being inserted into the mounting hole from the light distribution side of the light distribution element, and capable of moving from the pre-position to the installation position to be fixed in the mounting hole.

[0015] Optionally, in some embodiments of the present invention, the mounting hole includes a first mounting hole and a second mounting hole that communicate with each other, the first mounting hole and the second mounting hole are arranged along the direction from the light distribution side to the connection side, and the first mounting hole and the second mounting hole are distributed in a stepped manner; at least one pair of mounting buckles are provided on the sidewall of the first mounting hole; wherein, the prepositioning is provided on the side of the mounting buckle away from the second mounting hole, and the mounting position is provided on the side of the mounting buckle close to the second mounting hole.

[0016] Optionally, in some embodiments of the present invention, a plurality of openings adjacent to the mounting buckle are provided on the side wall of the mounting hole, the openings enabling the mounting buckle to elastically shift and spring back.

[0017] Optionally, in some embodiments of the present invention, the diameter of the first mounting hole is larger than the diameter of the second mounting hole.

[0018] Optionally, in some embodiments of the present invention, the mounting member includes two ends, namely a first end and a second end, the first end and the second end being distributed in a stepped manner, the diameter of the first end being larger than the diameter of the second end; the first end is capable of moving past the mounting buckle from the predetermined position to the mounting position for fixation.

[0019] Optionally, in some embodiments of the present invention, the mounting element is a magnetic element.

[0020] Optionally, in some embodiments of the present invention, the at least one light source is disposed adjacent to the driving component, the at least one light source is offset from the center position of the corresponding light source cavity towards the center position of the light source plate, or the at least one light source is offset from the center position of the corresponding light source cavity away from the center position of the light source plate.

[0021] Optionally, in some embodiments of the present invention, the wall surface of the light source cavity is a hyperboloid structure, the hyperboloid structure forms a light distribution lens, and the light distribution lens is used to distribute the light emitted by the light source.

[0022] Accordingly, the present invention also provides a lighting fixture, which includes the light source module described in any of the above embodiments.

[0023] Optionally, in some embodiments of the present invention, the lighting fixture further includes a lampshade and a chassis; the lampshade is fixedly connected to the chassis, and a closed space is formed between the lampshade and the chassis to accommodate the light source module; wherein the light source module is fixedly connected to the chassis via the mounting element.

[0024] Optionally, in some embodiments of the present invention, the lampshade includes a face shield and a side shield, the side shield being disposed around the face shield; the chassis includes a bottom wall and a side wall, the side wall being disposed around the bottom wall; wherein the side shield and the side wall are fixedly connected by snaps or threads.

[0025] Optionally, in some embodiments of the present invention, at least one fixing part is provided on the side of the bottom wall away from the side wall; and an anti-slip pad is provided on the side of the fixing part away from the bottom wall.

[0026] Compared to existing technologies, in this invention, the light distribution element of the light source module is snap-fitted to the back plate. The back plate and the light source plate are initially fixed directly through the pre-positioning post passing through the pre-positioning hole, and the mounting component is snap-fitted to the light distribution element. The entire assembly process does not require flipping of individual components; assembly is completed entirely using a stacked snap-fit ​​method. This assembly method requires less expertise from operators, significantly enhances automation, effectively reduces manufacturing costs, and thus improves product production efficiency and market competitiveness. The pre-installation structure allows for accurate alignment of the mounting component before installation, improving installation precision and preventing installation failures due to tilting. This pre-positioning structure is simple and easy to install, increasing production efficiency and reducing costs by minimizing installation errors. The automatic correction structure ensures relative fixation between the light distribution element and the light source plate, improving the light distribution accuracy of the light source module and achieving precise light distribution.

[0027] After the light source module is assembled, the light-distributing lens is offset from the light source. The light source is an LED emitter, and the light-distributing lens is a granular lens. At this point, each LED emitter corresponds to one granular lens, and at least the light-distributing lens closest to the driving cavity is offset from the light source. This arrangement alters the light emission path of the light source near the driving cavity. By designing based on simulation analysis of the positional distribution of the light-distributing lens and the driving cavity and the light transmission path, the offset angle between the light-distributing lens and the light source is adjusted to avoid the driving cavity, thus minimizing the possibility of light being reflected or refracted by the driving cavity to form bright spots or dark areas. Furthermore, because the outer wall of the driving cavity is arc-shaped, light incident on the outer wall of the driving cavity undergoes diffuse reflection, making it less likely to produce significant reflection or refraction at a specific angle, further preventing the formation of bright spots or dark areas. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional exploded view of the light source module described in this invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the backplate of the light source module described in this invention. Figure 1 ;

[0031] Figure 3 This is a three-dimensional structural diagram of the backplate of the light source module described in this invention. Figure 2 ;

[0032] Figure 4 This is a three-dimensional structural diagram of the light source board of the light source module of the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the light distribution element of the light source module described in this invention. Figure 1 ;

[0034] Figure 6 This is a three-dimensional structural diagram of the light distribution element of the light source module described in this invention. Figure 2 ;

[0035] Figure 7 yes Figure 5 Enlarged structural diagram of region X in the middle;

[0036] Figure 8 This is a schematic diagram showing the positional relationship between the mounting component and the light distribution element described in this invention. Figure 1 ;

[0037] Figure 9 This is a schematic diagram showing the positional relationship between the mounting component and the light distribution element described in this invention. Figure 2 ;

[0038] Figure 10 This is a schematic diagram of the planar structure of the light source board of the present invention mounted on the back plate;

[0039] Figure 11 This is a schematic diagram of the planar structure of the light source module after installation according to the present invention. Figure 1 ;

[0040] Figure 12 This is a schematic diagram of the planar structure of the light source module after installation according to the present invention. Figure 2 ;

[0041] Figure 13 yes Figure 11 A schematic diagram of the planar structure along the AA side;

[0042] Figure 14 yes Figure 13 Enlarged structural diagram of the Y region in the middle;

[0043] Figure 15 This is a three-dimensional exploded view of the lighting fixture described in this invention;

[0044] Figure 16 This is a schematic diagram of the planar structure of the lighting fixture described in this invention after installation. Figure 1 ;

[0045] Figure 17 This is a schematic diagram of the planar structure of the lighting fixture described in this invention after installation. Figure 2 .

[0046] Explanation of key figure labels:

[0047] Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. In the present invention, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" can refer to the actual direction of the device in use or operation, the direction of the drawing in the accompanying drawings, or two opposite directions; while "inner" and "outer" refer to the outline of the device.

[0049] Please see Figures 1 to 14 This invention provides a light source module 10, which includes a back plate 100, a light source plate 200, a light distribution element 300, and a mounting element 400. The light distribution element 300 is fixedly connected to the back plate 100, and a receiving space is formed between the light distribution element 300 and the back plate 100 to receive the light source plate 200. The light source module 10 has a light emitting side and a fixing side disposed opposite to each other, the fixing side facing the mounting base, and the light source module 10 is mounted on the mounting base by the mounting element 400. Of course, the mounting base here also includes other components that can be fixed on the mounting base, such as... Figure 15 The mounting element 400 mounts the light source module 10 onto the chassis 30 shown, thereby indirectly mounting it onto the mounting base via the chassis 30. In other words, the light source module 10 can be mounted directly or indirectly onto the mounting base.

[0050] Specifically, please refer to Figures 2 to 3 In this invention, the back plate 100 is a closed structure with a hollowed-out area in the middle, such as a polygonal ring structure like a ring, square, or regular hexagon. The back plate 100 has a mounting side and a positioning side arranged opposite to each other, with the mounting side facing the mounting base. The back plate 100 extends a platform 110 from one edge of the hollowed-out area, which can accommodate, for example, Figure 4 The drive assembly 230 shown is mounted on the platform 110, thus saving space. A wire-pressing groove 120 is formed on the side of the platform 110 near the hollowed-out area, allowing the wires connecting the drive assembly 230 to pass through the groove 120. The groove wall of the wire-pressing groove 120 protrudes from the surface of the platform 110 to prevent electrical interference between the wires and the drive assembly 230. The back plate 100 also has at least one fixing hole 130 on the inner side of the hollowed-out area for fixing the back plate 100 to the mounting base. Multiple columnar protrusions are formed on the positioning side of the back plate 100, forming a pre-positioning post 140 for pre-positioning the light source plate 200. The positioning side of the back plate 100 is also formed with a plurality of first slots 150. Preferably, the first slots 150 are located at the outer edge of the back plate 100. When the back plate 100 is a polygonal ring structure, the first slots 150 are located at the intersection of two adjacent sides of the polygon to obtain a more stable structure. The side of the back plate 100 is formed with a first latching position 160. Preferably, the outer and inner sides of the back plate 100 are both formed with the first latching position 160. It can be understood that using both the first slots 150 and the first latching positions 160 can further enhance the stability and risk resistance of the connection between the light distribution element 300 and the back plate 100. The back plate 100 is also formed with a plurality of correction post clearance holes 170. The opening direction of the correction post clearance holes 170 is towards the side of the prepositioning post 140. Preferably, the correction post clearance holes 170 are blind holes and are evenly distributed on the back plate 100. The mounting side of the back plate 100 has a plurality of reinforcing ribs 180, which can effectively enhance the rigidity and stability of the back plate 100; preferably, at least one of the reinforcing ribs 180 is connected to the outer wall of the clearance hole 170 of the correction column. At least one electrical isolation wall 190 is also provided on one side surface of the back plate 100 located on the prepositioning column 140 to prevent electrical crosstalk.

[0051] Those skilled in the art will understand that some customers purchase the light source module 10 to replace a damaged light source module 10 in their existing home lighting fixtures. In some lighting fixtures, the light source module 10 and the drive assembly 230 are separate, with the drive assembly 230 individually fixed to the center of the metal chassis 30. If the drive assembly 230 in this embodiment were also located in the center, the original drive assembly 230 would need to be removed before installing the new light source module 10. However, in this embodiment, the drive assembly 230 is positioned at one edge of the hollowed-out area, thus clearing the center. This allows users to install the new light source module 10 directly without removing the original drive assembly 230 when replacing it.

[0052] Please see Figure 4 In this invention, the light source board 200 has a light-emitting side and a backlight side arranged opposite to each other. When the light source board 200 is mounted on the back plate 100, the backlight side faces the positioning side of the back plate 100. The light source board 200 includes at least one substrate 210, multiple light sources 220, and a driving assembly 230. The substrate 210 can be annular, linear, "V"-shaped, or other zigzag shapes, as long as the substrate 210 can match the shape of the back plate 100. Preferably, in this invention, the light source board 200 is formed by splicing multiple "V"-shaped substrates 210 to form an annular shape. This arrangement saves materials and reduces cutting waste compared to annular substrates. Adjacent "V"-shaped substrates 210 can be electrically connected by wires or electrical connectors. It is understood that the shape formed by the plurality of "V"-shaped substrates 210 is approximately the same as that of the back plate 100. That is, at least the substrate 210 on which the driving component 230 is provided has an irregular shape, and a slot 240 is formed corresponding to the position of the pressure groove 120. The substrate 210 is provided with a plurality of prepositioning holes 250, which are provided corresponding to the prepositioning posts 140 on the back plate 100; each substrate 210 is provided with at least one prepositioning hole 250, preferably, the prepositioning holes 250 are respectively provided at the position near the end of each substrate 210. The substrate 210 is also provided with an automatic correction through hole 260, which is provided corresponding to the correction post clearance hole 170 on the back plate 100. The light source 220 is disposed on one side surface of the substrate 210. Preferably, the light source 220 includes multiple LEDs. Using multiple LEDs in the light source 220 can save energy, be environmentally friendly, reduce the heat generation of the light source module 10, and improve the service life of the light source module 10. Preferably, the driving component 230 is disposed on one of the substrates 210 and is disposed corresponding to the platform 110 of the back plate 100 in the hollowed-out area, thereby saving space. The driving component 230 can also be disposed separately from the substrate 210, that is, the driving component 230 can be a separate circuit board and externally connected to the substrate 210, and is not limited to... Figure 4 The aforementioned structure. In other embodiments, the driving component 230 may also be a separate module, electrically connected to the light source board 200 via wires or the like.

[0053] In some embodiments of the present invention, the diameter of the pre-positioning hole 250 is larger than the diameter of the pre-positioning post 140, so that when the light source plate 200 is mounted on the back plate 100, a clearance fit is formed between the pre-positioning post 140 and the pre-positioning hole 250. Preferably, the pre-positioning hole 250 is an elongated hole, and the pre-positioning post 140 can move within the pre-positioning hole 250, thereby further adjusting the position of the light source plate 200 on the back plate 100 through subsequent installation. Preferably, the diameter of the automatic correction through hole 260 is less than or equal to the diameter of the correction post clearance hole 170.

[0054] In summary, positioning structures are provided on the back plate 100 and the light source plate 200, allowing the light source plate 200 to be pre-fixed to the back plate 100 via these structures. The positioning structure includes a pre-positioning post 140 and a pre-positioning hole 250; the pre-positioning post 140 and / or the pre-positioning hole 250 are provided on the back plate 100, and correspondingly, the pre-positioning hole 250 and / or the pre-positioning post 140 are provided on the light source plate 200; the pre-positioning post 140 can pass through the pre-positioning hole 250 to fix the light source plate 200 to the back plate 100. Furthermore, the pre-positioning hole 250 and the pre-positioning post 140 can be selectively provided on the back plate 100 and the light source plate 200, and are not limited to the one described in this embodiment. Preferably, the pre-positioning hole 250 is located near the two ends of the V-shaped plate; positioning the pre-positioning hole 250 at the two ends furthest apart effectively achieves positioning.

[0055] Please see Figures 5 to 9In this invention, the light distribution element 300 is a closed configuration with a hollowed-out area in the middle. Its shape is basically the same as that of the back plate 100, and it has a light distribution side and a connecting side arranged opposite to each other. After the light source module is installed, the connecting side faces the light-emitting side of the light source plate 200 and the positioning side of the back plate 100. The light distribution element 300 has a convex structure as a whole, forming a receiving space together with the back plate 100. Specifically, the light distribution element 300 includes a driving cavity 310 and a light source cavity 320. The driving cavity 310 and the light source cavity 320 protrude towards the same side, for example, both protruding towards the light distribution side. The outer wall of the driving cavity 310 is arc-shaped to avoid blocking light. The wall surface of the light source cavity 320 has a hyperboloid structure, and the hyperboloid structure forms a light distribution lens 321, which can distribute the light emitted by the light source 220 so that the light diffuses according to a preset light path. Preferably, the light distribution lens 321 is a granular lens. The light-distributing element 300 has multiple first claws 330 protruding from the side opposite to the light-distributing lens 321. The multiple first claws 330 are provided corresponding to the first slot 150 and can engage with the first slot 150 to fix the light-distributing element 300 to the back plate 100. The side of the light-distributing element 300 has a second latching position 340, which is provided corresponding to the first latching position 160 and can engage with the first latching position 160 to further fix the light-distributing element 300 to the back plate 100.

[0056] As described above, a connection structure is provided on the back plate 100 and the light distribution element 300, and the light distribution element 300 is connected to the back plate 100 through the connection structure. The connection structure includes a first slot 150 and a first claw 330. The back plate 100 is provided with the first slot 150 and / or the first claw 330, while the light distribution element 300 is correspondingly provided with the first claw 330 and / or the first slot 150; the first slot 150 can cooperate with the first claw 330 to snap the light distribution element 300 to the back plate 100. The connection structure further includes a first latching position 160 and a second latching position 340; wherein the first latching position 160 is provided on the back plate 100 and the second latching position 340 is provided on the light distribution element 300; the first latching position 160 can cooperate with the second latching position 340 to latch the light distribution element 300 to the back plate 100.

[0057] The light distribution element 300 also has a plurality of correction posts 350 protruding from its connecting side. The top of the correction post 350 is spherical, preferably conical. The root of the correction post 350 is cylindrical. The diameter of the root of the correction post 350 is the same as the diameter of the automatic correction via 260 on the substrate 210. When the light distribution element 300 is mounted on the back plate 100, the light source board 200 can be relatively fixed in the receiving space by the cooperation of the correction post 350 and the automatic correction via 260.

[0058] As described above, the light source module 10 of the present invention further includes an automatic correction structure, which includes a correction post 350 and an automatic correction via 260. The correction post 350 is disposed on the side of the light distribution element 300 near the light source plate 200, that is, on the connection side of the light distribution element 300; the automatic correction via 260 is disposed on the light source plate 200 and corresponds to the correction post 350; wherein, the correction post 350 and the automatic correction via 260 are connected to each other, so that the light distribution element 300 and the light source plate 200 are relatively fixed.

[0059] The light distribution element 300 is also provided with at least one mounting hole on the side of the hollowed-out area for mounting the light source module 10 on the mounting base; the mounting hole is stepped and includes a first mounting hole 361 and a second mounting hole 362. The first mounting hole 361 is located on the side where the light distribution lens 321 is provided, and the second mounting hole 362 is located on the side where the correction column 350 is provided. The diameter of the first mounting hole 361 is larger than the diameter of the second mounting hole 362. At least one pair of mounting clips 3611 are provided on the sidewall of the first mounting hole 361. Openings 3612 are provided on both sides of each mounting clip 3611, allowing the mounting clip 3611 to elastically displace relative to the sidewall of the mounting position 3613. A mounting position 3613 is provided on the side of the mounting clip 3611 closest to the second mounting hole 362, and a pre-position 3614 is provided on the side of the mounting clip 3611 away from the second mounting hole 362. The pre-position 3614 is located on the light emission side of the light source module, while the mounting position 3613 is located away from the light emission side of the light source module. More specifically, the pre-position 3614 is located on the light distribution side of the light distribution element 300, and the mounting position 3613 is located away from the light distribution side of the light distribution element 300, facing the connection side of the light distribution element 300. At least one reinforcing rib 3615 is provided on the sidewall of the first mounting hole 361. When multiple reinforcing ribs 3615 are provided, the reinforcing ribs 3615 are arranged in an array on the sidewall of the first mounting hole 361. Preferably, the reinforcing ribs 3615 are provided corresponding to the mounting buckles 3611 and are provided on the inner sidewall of the first mounting hole 361. It is understood that the reinforcing ribs 3615 can be provided at any position on the sidewall of the first mounting hole 361. For example, the reinforcing ribs 3615 can also be provided at a position in the first mounting hole 361 where there are no mounting buckles 3611, and the reinforcing ribs 3615 can also be provided on the outer sidewall of the first mounting hole 361, and are not limited to the present invention.

[0060] In some embodiments of the present invention, the height of the mounting position 3613 (the height of the mounting position 3613 is the closest distance between the mounting buckle 3611 and the side end face of the first mounting hole 361 near the second mounting hole 362) is the same as the height of the predetermined position 3614 (the height of the predetermined position is the closest distance between the mounting buckle 3611 and the side end face of the first mounting hole 361 away from the second mounting hole 362).

[0061] In this invention, the mounting element 400 includes a fixing member 410 and a mounting member 420. The fixing member 410 can cooperate with the fixing hole 130, and the mounting member 420 can cooperate with the mounting hole, being inserted into the light distribution element 300 from the light distribution side and passing through the back plate 100, so that the light source module 10 is mounted on the mounting base. Preferably, the fixing member 410 is a threaded connector, such as a screw. The fixing member 410 can be a standard threaded connector, which will not be elaborated further in this invention. Preferably, the mounting member 420 is a magnetic component, such as a permanent magnet; the light source module 10 is fixed to the mounting base by magnetic force. Specifically, the mounting member 420 is a stepped cylindrical shape, including two ends, namely a first end 421 and a second end 422. The diameter of the first end 421 is larger than the diameter of the second end 422, and at least the second end 422 is a magnetic component. When the mounting member 420 is installed in the mounting position 3613, the second end 422 can directly pass through the first mounting hole 361 without external force. That is, the diameter of the second end 422 is smaller than the minimum inner diameter of the first mounting hole 361 where the mounting buckle 3611 is located. The first end 421 cannot directly pass through the first mounting hole 361 without external force. That is, the diameter of the second end 422 is larger than the minimum inner diameter of the first mounting hole 361 where the mounting buckle 3611 is located. When the mounting member 420 is installed in the mounting hole, firstly, the second end 422 is located above the mounting buckle 3611, at which time the mounting member 420 is located in the predetermined position 3614. Under the action of external force, the second end 422 is pressed below the mounting buckle 3611, and the mounting buckle 3611 rebounds and abuts against the upper surface of the second end 422, at which time the mounting member 420 is located in the mounting position 3613.

[0062] In some embodiments of the present invention, the height of the first end 421 (the height of the first end 421 is the vertical distance between the end face of the first end 421 near the second end 422 and the end face of the first end 421 away from the second end 422) is less than or equal to the predetermined positioning height. Preferably, the height of the first end 421 is equal to the predetermined positioning height. The height of the second end 422 (the height of the second end 422 is the vertical distance between the end face of the second end 422 near the first end 421 and the end face of the second end 422 away from the first end 421) is greater than or equal to the height of the second mounting hole 362 (the height of the second mounting hole 362 is the vertical distance between the side of the second mounting hole 362 near the first mounting hole 361 and the side of the second mounting hole 362 away from the first mounting hole 361); preferably, the height of the second end 422 is greater than the height of the second mounting hole 362. A chamfer is provided on the side of the first end 421 near the second end 422, which makes the installation of the magnetic component smoother.

[0063] Based on the above description, the present invention also relates to a pre-installation structure for fixing the light source module 10 to a mounting base (chassis 30). The pre-installation structure includes at least one mounting hole 360 ​​and at least one mounting member 420. The mounting hole 360 ​​is disposed on the light source module 10, and a pre-position 3614 and a mounting position 3613 are provided within the mounting hole 360. The pre-position 3614 is located on the light emitting side, and the mounting position 3613 is located away from the light emitting side of the light source module 10 in a direction toward the fixing side of the light source module 10. The mounting member 420 can be inserted into the mounting hole 360 ​​from the light emitting side of the light source module 10, and can move from the pre-position 3614 to the mounting position 3613 to be fixed within the mounting hole 360.

[0064] Please see Figures 10 to 14The following details the assembly process of the light source module 10 of the present invention: First, the backlight side of the light source board 200 is brought close to the positioning side of the back plate 100, so that the pre-positioning hole 250 on the light source board 200 passes through the pre-positioning post 140 on the back plate 100, thereby initially installing the light source board 200 on the back plate 100. At this time, any two substrates 210 of the light source board 200 are separated by the electrical isolation wall 190. Then, the connecting side of the light distribution element 300 is brought close to the light-emitting side of the light source board 200, so that the correction post 350 of the light distribution element 300 passes through the automatic correction through hole 260 of the light source board 200. At the same time, a certain external force is applied, so that the first claw 330 is engaged with the first slot 150, and the first latching position 160 and the second latching position 340 are engaged with each other, thereby securing the light distribution element 300. The light source 200 is fixedly installed on the back plate 100, and the light distribution element 300 is fixedly installed in the receiving space formed by the back plate 100 and the light distribution element 300. The driving assembly 230 is located in the driving cavity 310, and the light source 220 is located in the light source cavity 320. Finally, the second end 422 of the magnetic element is oriented toward the first mounting hole 361, so that the first end 421 is located in the predetermined position 3614. Then, a certain external force is applied. Under the action of the external force, the mounting buckle 3611 moves toward the outside of the mounting hole, and the first end 421 moves downward to the mounting position 3613. At the same time, under the elastic force of the mounting buckle 3611 itself, the mounting buckle 3611 springs back to the initial position and latches onto the surface of the first end 421 away from the second end 422, thus fixing the magnetic element to the mounting hole. When the prepositioning hole 250 on the light source plate 200 passes through the prepositioning post 140 on the back plate 100, the light source plate 200 is initially positioned on the back plate 100. The diameter of the prepositioning post 140 is less than or equal to the diameter of the prepositioning hole 250. Thus, the back plate 100 and the light source plate 200 are not completely fixed, and a certain amount of relative movement can occur between them. This arrangement allows the position of the light source plate 200 to be further adjusted and fixed during the process of the correction post 350 of the light distribution element 300 passing through the automatic correction through hole 260 of the light source plate 200, thereby ensuring that the position between the light source and the light distribution element 300 can meet the design requirements. In this embodiment, the light distribution element 300 is offset from the light source plate 200 to achieve light distribution at different angles.

[0065] Those skilled in the art will understand that the mounting base described in this invention can be any object capable of fixing the light source module 10. The fixing member 410 is used to install and fix the light source module 10 to the mounting base, which can be a wall, ceiling, etc. Since the mounting member 420 is a magnetic component, the mounting base typically has the characteristic of magnetic adsorption, such as the metal base 30 of a lamp, etc., which will not be described in detail here. It should be noted that the fixing member 410 and the mounting member 420 can be used alone or in combination.

[0066] This invention first involves the initial installation of the pre-positioning post 140 and the pre-positioning hole 250, followed by the mutual cooperation of the correction post 350 and the automatic correction through hole 260. This two-stage alignment significantly improves the relative positional accuracy of the light distribution element 300 and the light source, achieving precise light distribution. The pre-positioning 3614 at the mounting hole position ensures that the mounting component 420 will not be unable to be installed properly due to tilting, or that forced installation will damage the mounting hole. It also improves the installation accuracy of the mounting component 420. This ingenious design saves time and effort, improving the installation efficiency of mounting the light source module 10 onto the mounting base, making it suitable for large-scale application. The entire assembly process of the light source module 10 does not require flipping the components; all parts are assembled using a stacked snap-fit ​​method. This assembly method requires less expertise from operators, significantly enhances automation, effectively reduces manufacturing costs, and thus improves product production efficiency and market competitiveness. Furthermore, the light source board 200 is assembled from multiple substrates 210. This structure of the light source module 10 allows for individual light distribution to some of the light sources 220. When a light source 220 on a certain substrate 210 fails, only the substrate 210 with the failed light source 220 needs to be replaced, thus enabling individual partial replacement of the light source board 200 and reducing the maintenance cost of the light source module 10. The light source cavity 320 and the driving cavity 310 respectively cover the light source 220 and the driving component 230, improving aesthetics while preventing electrical crosstalk caused by insufficient gap between the light source 220 and the driving component 230, thereby improving the protection performance of the light source module 10.

[0067] In some embodiments of the present invention, after the light source module 10 is assembled, the light distribution lens 321 is offset from the light source 220. In other words, at least one light source 220 is offset from the center position C1 of the corresponding light source cavity 320. Preferably, the at least one light source 220 is disposed adjacent to the driving component 230, and the at least one light source 220 is offset from the center position C3 of the light source plate 200 towards the center position C1 of the corresponding light source cavity 320, or the at least one light source 220 is offset from the center position C3 of the light source plate 200 away from the center position C3 of the corresponding light source cavity 320. It can be understood that, as Figure 14 As shown, it is sufficient that the center position C2 of the light source 220 does not coincide with the center position C1 of the light source cavity. Further, when the light source 220 is an LED and the light-distributing lens 321 is a granular lens, each LED corresponds to one granular lens. In this case, at least the light-distributing lens 321 closest to the driving cavity 310 is offset from the light source 220. The reason the light-distributing lens 321 and the light source 220 can be offset is that when the pre-positioning hole 250 on the light source plate 200 passes through the pre-positioning post 140 on the back plate 100, the pre-positioning hole 250 and the pre-positioning post 140 are in a gap fit, leaving a certain adjustment space. This allows the correction post 350 of the light-distributing element 300 to pass through the automatic correction through hole 260 of the light source plate 200, further adjusting and fixing the position of the light source plate 200 so that the required offset distance is achieved between the light-distributing element 300 and the light source plate 200. This configuration alters the light emission path of the light source 220 near the driving cavity 310. Specifically, it can be designed based on simulation analysis of the positional distribution of the light-distributing lens 321 and the driving cavity 310, and the light transmission path. The offset angle between the light-distributing lens 321 and the light source 220 can be adjusted to avoid the driving cavity 310, minimizing the possibility of light being reflected or refracted by the driving cavity 310 to form bright spots or dark areas. Because the outer wall of the driving cavity 310 is arc-shaped, light incident on the outer wall undergoes diffuse reflection, making it less prone to significant reflection or refraction at a specific angle, further preventing the formation of bright spots or dark areas.

[0068] In this invention, the precise positioning of the light distribution element 300, the light source plate 200, and the back plate 100 is achieved through an automatic correction structure. Specifically, this is achieved through the cooperation of the correction post 350, the automatic correction through hole 260, and the correction post clearance hole 170. The positions of the correction post 350 and the correction post clearance hole 170 can be reasonably interchanged. That is, in some embodiments, the correction post 350 can be disposed on the back plate 100, in which case the correction post clearance hole 170 is also disposed on the light distribution element 300. Similarly, in the pre-positioning structure composed of the pre-positioning post 140 and the pre-positioning hole 250, the positions of the pre-positioning post 140 and the pre-positioning hole 250 can also be reasonably interchanged. That is, in some embodiments, the pre-positioning post 140 can be disposed on the light source plate 200, in which case the pre-positioning hole 250 is also disposed on the back plate 100.

[0069] In some embodiments of the present invention, the driving component 230 includes, but is not limited to, a light source 220 driving controller chip, a rectifier chip, a resistor, a capacitor, a fuse, a coil, and a power supply. It is understood that the driving component 230 can adjust the color temperature and brightness of the light source 220 and perform local control of the light source 220. Preferably, at least the light sources 220 near the driving cavity 310 can be independently controlled to avoid the formation of bright spots or dark areas. To further optimize the light emitted by the light source module 10, in some embodiments, the surface of the light distribution lens 321 is set with a frosted surface or has a texture, that is, the surface of the light distribution lens 321 is frosted or textured to achieve light mixing, making the light emitted by the light source module 10 softer without changing the illuminance, thus avoiding the formation of bright spots or dark areas. Preferably, both the front and back surfaces of the light distribution lens 321 are frosted or textured; in other words, both surfaces of the light source cavity 320 are frosted or textured.

[0070] Specifically, please refer to Figures 15 to 17 The present invention also provides a lighting fixture 1, which includes a lampshade 20, a chassis 30, and a light source module 10 as described in any of the above embodiments. The lampshade 20 is fixedly connected to the chassis 30, and a closed space is formed between the lampshade 20 and the chassis 30 to accommodate the light source module 10. The light source module 10 is fixed to the chassis 30 by the mounting element 400, wherein the mounting side of the back plate 100 faces the chassis 30, and the light distribution surface of the light distribution element 300 faces the lampshade 20. The lampshade 20 can protect the light source module 10 and also enhance the aesthetics of the lighting fixture 1.

[0071] The lampshade 20 is disc-shaped and includes a face cover 21 and a side cover 22. The side cover 22 is arranged around the face cover 21. The inner wall of the side cover 22 is provided with a snap-fit ​​structure or a threaded structure, which can be used to fix the lampshade 20 to the chassis 30.

[0072] The chassis 30 is disc-shaped, and its size is matched to the lampshade 20. The chassis 30 includes a bottom wall 31 and a side wall 32. The side wall 32 is arranged around the bottom wall 31. The outer wall of the side wall 32 is also provided with a snap-fit ​​structure or a threaded structure that matches the inner wall of the lampshade 22. The chassis 30 and the lampshade 20 can be fixedly connected by the snap-fit ​​structure or the threaded structure. At least one fixing part 33 is provided on the side of the bottom wall 31 opposite to the side wall 32. When the lighting fixture 1 is installed on the mounting base, the fixing part 33 contacts and connects with the mounting base, suspending the bottom wall 31. This arrangement can accelerate the heat dissipation of the lighting fixture 1. On the other hand, when the surface of the mounting base or the bottom wall 31 is uneven, the fixed connection can be achieved by reducing the contact area. Preferably, there are three fixing parts 33, which are evenly distributed on one side of the bottom wall 31. In some embodiments, an anti-slip pad is provided on the side of the fixing part 33 away from the bottom wall 31. The material of the anti-slip pad is preferably sponge, rubber, etc., but this invention is not limited thereto. In this invention, the material of the chassis 30 is a material that can be magnetically attracted, but this invention is not specifically limited thereto.

[0073] The chassis 30 is the main fixing structure of the lighting fixture 1, mainly used to fix the light source module 10 and the lampshade 20, which are fixedly connected to the chassis 30, onto the mounting base. The fixing connection between the chassis 30 and the mounting base can be achieved using common techniques in the field, and will not be elaborated upon in this invention.

[0074] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0075] The above provides a detailed description of a light source module 10 and a lighting fixture 1 provided in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A light source module, characterized in that: The light source module has a hollowed-out area, including a back plate, a light source plate, and a light distribution element that are connected and fixed in sequence; the light source module also includes: A pre-installed structure is provided, through which the light source module can be fixedly connected to a mounting base. The structure includes at least one mounting hole disposed on the light distribution element and located on the inner side of the hollowed-out area, and at least one mounting component. The mounting hole has a pre-position and a mounting position. The pre-position is located on the light distribution side of the light distribution element, and the mounting position faces the connection side of the light distribution element away from the light distribution side. The mounting component can be inserted into the mounting hole from the light distribution side of the light distribution element and can move from the pre-position to the mounting position to be fixed within the mounting hole. A positioning structure is provided on the back plate and the light source plate, wherein the light source plate can be pre-fixed to the back plate via the positioning structure; and An automatic correction structure is disposed on the light source plate and the light distribution element, which enables the light distribution element and the light source plate to be relatively fixed. The light source plate includes multiple light sources and a driving assembly. The light distribution element includes multiple light source cavities and a driving cavity. The light sources are correspondingly housed in the light source cavities, and the driving assembly is housed in the driving cavity. At least one light source near the driving cavity is offset from the center position of the corresponding light source cavity. The positioning structure includes a prepositioning post and a prepositioning hole. The prepositioning hole is an elongated hole. The diameter of the prepositioning post is less than or equal to the diameter of the prepositioning hole. The prepositioning post can pass through the prepositioning hole and is clearance-fitted with the prepositioning hole to pre-fix the light source board to the back plate. The wall of the light source cavity forms a light-distributing lens, and the outer wall of the driving cavity is arc-shaped. At least the light-distributing lens near the driving cavity is offset from the light source.

2. The light source module as described in claim 1, characterized in that: The prepositioning post and / or the prepositioning hole are provided on the back plate, and the prepositioning hole and / or the prepositioning post are correspondingly provided on the light source plate.

3. The light source module as described in claim 1, characterized in that: The automatic calibration structure includes: a calibration post and an automatic calibration via; the calibration post is disposed on the side of the light distribution element near the light source plate; the automatic calibration via is disposed on the light source plate and corresponds to the calibration post; The correction column is connected to the automatic correction through hole, so that the light distribution element and the light source board are relatively fixed.

4. The light source module as described in claim 3, characterized in that: The automatic correction structure also includes a correction column avoidance hole; the correction column avoidance hole is disposed on the back plate and corresponds to the correction column and the automatic correction through hole, and is used to avoid the correction column.

5. The light source module as described in claim 1, characterized in that: The light source module also includes a connection structure, which is disposed on the back plate and the light distribution element, and the light distribution element is connected to the back plate through the connection structure.

6. The light source module as described in claim 5, characterized in that: The connection structure includes a first slot and a first claw; wherein the first slot and / or the first claw are provided on the back plate, and the first claw and / or the first slot are correspondingly provided on the light distribution element; the first slot can cooperate with the first claw to snap the light distribution element to the back plate.

7. The light source module as described in claim 5, characterized in that: The connection structure further includes a first latching position and a second latching position; wherein the first latching position is provided on the back plate, and the second latching position is provided on the light distribution element; the first latching position can cooperate with the second latching position to latch and connect the light distribution element to the back plate.

8. The light source module as described in claim 1, characterized in that: The mounting holes include a first mounting hole and a second mounting hole that are interconnected. The first mounting hole and the second mounting hole are arranged along the direction from the light distribution side to the connection side, and the first mounting hole and the second mounting hole are distributed in a stepped manner. At least one pair of mounting clips are provided on the side wall of the first mounting hole. The preposition is located on the side of the mounting buckle opposite to the second mounting hole, and the mounting position is located on the side of the mounting buckle close to the second mounting hole.

9. The light source module as described in claim 8, characterized in that: Multiple openings adjacent to the mounting buckle are also provided on the side wall of the mounting hole, which allow the mounting buckle to elastically shift and spring back.

10. The light source module as described in claim 8, characterized in that: The diameter of the first mounting hole is larger than the diameter of the second mounting hole.

11. The light source module as described in claim 8, characterized in that: The mounting component includes two ends, namely a first end and a second end, which are distributed in a stepped manner. The diameter of the first end is larger than the diameter of the second end. The first end can move from the predetermined position to the mounting position and be fixed by passing over the mounting buckle.

12. The light source module as described in claim 1, characterized in that: The mounting component is a magnetic component.

13. The light source module as described in claim 1, characterized in that: At least one of the plurality of light sources is disposed adjacent to the driving component, and the at least one light source is offset from the center position of the corresponding light source cavity toward the center position of the light source plate, or the at least one light source is offset from the center position of the corresponding light source cavity away from the center position of the light source plate.

14. The light source module as described in claim 1, characterized in that: The wall of the light source cavity has a hyperboloid structure, which forms a light distribution lens. The light distribution lens is used to distribute the light emitted by the light source.

15. A lighting fixture, characterized in that: The lighting fixture includes the light source module according to any one of claims 1 to 14.

16. The lighting fixture as described in claim 15, characterized in that: The lighting fixture also includes a lampshade and a chassis; the lampshade is fixedly connected to the chassis, and a closed space is formed between the lampshade and the chassis to accommodate the light source module; wherein, the light source module is fixedly connected to the chassis via mounting elements.

17. The lighting fixture as described in claim 16, characterized in that: The lampshade includes a face shield and a side shield, with the side shield surrounding the face shield; the chassis includes a bottom wall and a side wall, with the side wall surrounding the bottom wall; wherein the side shield and the side wall are fixedly connected by snaps or threads.

18. The lighting fixture as described in claim 17, characterized in that: At least one fixing part is provided on the side of the bottom wall away from the side wall; an anti-slip pad is provided on the side of the fixing part away from the bottom wall.

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