CN213983159U - Direct type panel lamp convenient to overhaul - Google Patents

Abstract

The application discloses a direct type panel lamp convenient to overhaul, which comprises a frame, a diffusion plate, a back plate, reflective paper and a plurality of lamp strips arranged in parallel; the central region of backplate uplifts and forms one and holds the cavity of lamp strip, the cavity includes flat diapire and the lateral wall of slope, and each lamp strip is fixed on the diapire, and the diffuser plate has the printing opacity function, and it is relative the backplate sets up in order to seal the cavity, and the frame is formed by the concatenation of a plurality of frame strips, and each frame strip is connected with the corresponding border of diffuser plate and backplate, and reflective paper includes the center, and a plurality of holes of reprocessing have been seted up in the center, the lamp strip with soft lamp strip junction between them respectively with corresponding hole one-to-one of reprocessing, this scheme can be convenient for overhaul the junction of soft lamp strip and lamp strip through the hole of reprocessing on the reflective paper for prior art.

Description

Direct type panel lamp convenient to overhaul

Technical Field

The application relates to a panel light field especially relates to a straight following formula panel light convenient to overhaul.

Background

The LED panel lamp has the advantages of good illumination uniformity, soft and comfortable light, environment-friendly materials, low power consumption and the like, and is a popular indoor lighting lamp at present.

The basic structure of the panel lamp comprises a frame, a back plate, a diffusion plate, a driving power supply and a plurality of light-emitting assemblies, wherein the back plate is installed on the back face of the frame, and the diffusion plate is installed on the front face of the frame. The back plate is provided with a cavity, the cavity comprises a flat bottom wall and an inclined side wall, each light-emitting element is fixed on the bottom wall, and the driving power supply is arranged on one side of the backlight of the panel lamp. The light emitting component forms a uniform plane light emitting effect after passing through the diffusion plate with high light transmittance, and the driving power supply is used for driving the light emitting element.

The panel light also comprises reflective paper, and the reflective paper is arranged between the light-emitting component and the back plate and used for reflecting light of the light-emitting component. However, the reflective paper covers the connecting wires of the light-emitting element, and when the connecting wires of the light-emitting element are failed, the reflective paper needs to be taken down to overhaul the connecting wires, so that the panel lamp is overhauled and troublesome.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the application provides a straight following formula panel light convenient to overhaul, can be convenient for overhaul each connecting wire on the panel light.

The application provides a straight following formula panel light convenient to overhaul, include:

the LED lamp comprises a plurality of lamp strips arranged in parallel, wherein each lamp strip comprises a substrate, LED lamp beads fixed on the substrate and lenses covered on the LED lamp beads, and adjacent lamp strips are electrically connected through flexible lamp strips;

the central area of the back plate is raised to form a cavity for accommodating the light bars, the cavity comprises a flat bottom wall and inclined side walls, and each light bar is fixed on the bottom wall;

the diffusion plate has a light transmission function and is arranged opposite to the back plate to seal the cavity;

the frame is formed by splicing a plurality of frame strips, and each frame strip is connected with the diffusion plate and the corresponding edge of the back plate;

the light reflecting paper comprises a central area attached to the bottom wall, a plurality of repairing holes are formed in the central area, and the connection positions of the light bars and the soft light bars are in one-to-one correspondence with the corresponding repairing holes respectively.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the substrate is located between the reflective paper and the back plate, the reflective paper is provided with an avoiding hole for avoiding the LED lamp bead and the lens.

Optionally, the light bars are longitudinally arranged at intervals, the LED lamp beads on the light bars are aligned, and the soft light bars are transversely arranged;

the positions of the repair holes are aligned.

Optionally, along the length direction of the light bar, the distance between two opposite sides of the repair hole is greater than the width of the flexible light bar;

along the length direction of the soft lamp strip, the distance between the two opposite sides of the repairing hole is larger than the width of the lamp strip.

Optionally, in the same light bar, the LED lamp beads include a plurality of first LED lamp beads and a plurality of second LED lamp beads, the first LED lamp beads and the second LED lamp beads are alternately arranged, and the brightness or color temperature of the first LED lamp beads and the color temperature of the second LED lamp beads are different.

Optionally, in the same lamp strip, adjacent first LED lamp pearl and second LED lamp pearl are a set of lamp pearl, and the interval of first LED lamp pearl and second LED lamp pearl in the same set of lamp pearl is L1, and the interval between adjacent two sets of lamp pearls is L2, and satisfies L1: l2 ═ 1: 2 to 8.

Optionally, the repairing hole is close to one side of the reflective paper, and a group of lamp beads is arranged between the repairing hole and the side at most.

Optionally, all the first LED lamp beads are electrically connected through a first circuit, and all the second LED lamp beads are electrically connected through a second circuit;

the number of the soft light bars is two, and the two soft light bars are respectively and electrically connected with the first circuit and the second circuit;

the two repairing holes corresponding to the same lamp strip are arranged at intervals or continuously.

Optionally, the soft lamp strips are located between two adjacent groups of lamp beads, and a group of lamp beads are arranged between the two soft lamp strips at most.

Optionally, the reflective paper further includes a folded edge extending along the length direction of the central area, a cut is formed at a corner of the folded edge, the central area of the reflective paper is attached to the bottom wall, the folded edge is attached to the side wall, and two opposite side edges of the cut are attached to form a box-shaped structure.

The straight following formula panel light of this application, the hole of reprocessing through on the reflective paper can be convenient for overhaul the junction of soft lamp strip and lamp strip.

Drawings

Fig. 1 is a schematic structural diagram of a direct type panel lamp according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of the direct type panel lamp of FIG. 1;

FIG. 3 is a schematic structural view of the reflection paper of FIG. 2 in a flat state;

FIG. 4 is a schematic view of the structure of the light bar shown in FIG. 2;

FIG. 5 is a schematic view of the frame strip of FIG. 1 without one side;

FIG. 6 is a schematic view of the frame strip of FIG. 1;

FIG. 7 is a schematic view of a connection structure between light bars;

fig. 8 is a schematic structural view illustrating the connection between the substrate and the flexible light bar in fig. 7;

FIG. 9 is a schematic structural view of the LED lamp bead and the lens in FIG. 7;

FIG. 10 is a schematic structural diagram of the circuit board of FIG. 7;

fig. 11 is a schematic structural view of the flexible light bar of fig. 7;

FIG. 12 is a partial schematic view of the direct type panel lamp of FIG. 1;

FIG. 13 is a schematic view of the structure of the drive cartridge of FIG. 12;

FIG. 14 is an exploded view of the drive cartridge of FIG. 13;

fig. 15 is a schematic cross-sectional view of the drive cartridge of fig. 13.

The reference numerals in the figures are illustrated as follows:

100. a direct type panel lamp; 101. a drive module;

10. a light bar; 11. a substrate; 111. a metal layer; 112. an insulating layer; 113. a circuit layer; 114. a second window; 115. a pad; 12. LED lamp beads; 13. a lens; 131. a convex foot; 14. a flexible light bar; 141. a first window; 142. an insulating layer; 143. a circuit layer; 144. a solder resist layer; 15. a first LED lamp bead; 16. A second LED lamp bead;

20. a back plate; 211. a protrusion; 22. an edge region; 221. a central region; 23. a cavity; 231. a bottom wall; 232. a side wall; 24. a rib is protruded; 25. a sloped region;

30. a diffusion plate;

40. a frame; 41. a frame strip; 42. a first mounting surface; 43. a second mounting surface; 44. a horizontal portion; 45. A vertical portion; 46. thickening the portion; 47. vertically folding; 471. a screw slot;

50. reflective paper; 51. a central region; 52. folding edges; 53. cutting the opening; 54. avoiding holes; 55. and repairing the hole.

60. A drive cartridge; 61. a box body; 611. a wire passing cavity; 612. a wire passing hole; 62. a top cover; 63. a cover plate; 631. a cell hole; 632. a unit cover; 633. a shielding portion; 634. a fixed part; 64. a first side; 641. A second edge; 642. a third side; 643. a fourth side; 644. a fifth side; 65. a tab; 66. an insulating case.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, the present application provides a direct type panel lamp 100, which includes a frame 40, a back plate 20, a diffuser plate 30 and a plurality of light bars 10 arranged in parallel, wherein a central region 221 of the back plate 20 is raised to form a cavity 23 for accommodating the light bars 10, the cavity 23 includes a flat bottom wall 231 and an inclined side wall 232, and each light bar 10 is fixed on the bottom wall 231.

The diffuser 30 is disposed opposite to the back plate 20 to enclose the cavity 23, and the frame 40 is formed by splicing a plurality of (usually four) frame bars 41, and each frame bar 41 is connected to the diffuser 30 and the corresponding edge of the back plate 20.

The light bar 10 comprises a substrate 11, an LED lamp bead 12 fixed on the substrate 11, and a lens 13 covering the LED lamp bead 12. The diffusion plate 30 has a light transmission function, light emitted by the LED lamp beads 12 sequentially passes through the lens 13 and the diffusion plate 30, and a plurality of LED point light sources form a uniform surface light source after light diffusion.

The direct type panel light 100 further includes a reflective paper 50, and the reflective paper 50 can reflect light emitted from each light bar 10. Each connecting wire of lamp strip 10 can take place to cover by reflective paper 50, when the connecting wire of lamp strip 10 broke down, need take off reflective paper 50, could overhaul each connecting wire, cause maintenance and trouble.

In order to solve the technical problem, in some embodiments, as shown in fig. 2 and 3, the light bars 10 are electrically connected through the flexible light bars 14, the central area 51 of the reflective paper 50 is provided with a plurality of repair holes 55, the connection portions of the light bars 10 and the flexible light bars 14 respectively correspond to the corresponding repair holes 55 one by one, and the repair holes 55 can facilitate the repair of the connection portions of the flexible light bars 14 and the light bars 10.

In some embodiments, as shown in fig. 2 and 3, the reflective paper 50 further includes a folded edge 52 extending along a length direction of the central area 51, a cut 53 is formed at a corner of the folded edge 52, the central area 51 of the reflective paper 50 is attached to the bottom wall 231, the folded edge 52 is attached to the side wall 232, and two opposite side edges of the cut 53 are attached to form a box-shaped structure, the cut 53 is disposed to prevent the folded edge 52 from being wrinkled or folded at the corner of the side wall 232, so that the reflective paper 50 is smoothly mounted, and light spots are prevented from being generated. The central area 51 of the retroreflective paper 50 and the folded edge 52 are fixed to the back plate 20 by means of gluing.

The central area 51 of the reflective paper 50 is rectangular, the number of the folded edges 52 is four, and each folded edge 52 is respectively arranged on the corresponding side of the central area 51; a shear 53 is disposed between two adjacent folded edges 52, and each folded edge 52 extends along the length direction of the central area 51 with equal width. When the reflective paper 50 is laid flat, the center line of the cut 53 coincides with the diagonal of the central area 51.

Referring to one embodiment, the central region 51 covers the bottom wall 231, each flap 52 covers the corresponding sidewall 232, and two adjacent flaps 52 do not overlap each other. The width of the folded edge 52 is the same or slightly smaller than the width of the side wall 232, so that the folded edge 52 can cover the corresponding side wall 232 as much as possible, and meanwhile, the folded edge 52 can be prevented from being wrinkled to cause unevenness of the reflective paper 50.

In the installation position of the reflective paper 50, referring to one embodiment, as shown in fig. 2 and 5, the substrate 11 is located between the reflective paper 50 and the back plate 20, and the reflective paper 50 is provided with an avoiding hole 54 avoiding the LED lamp bead 12 and the lens 13. The reflective paper 50 can shield the substrate 11 of the light bar 10 to prevent shadows from being generated on the substrate 11 and affecting the light emission of the direct type panel light 100. Of course, in other embodiments, the substrate 11 may be processed additionally, for example, a white reflective material is coated on the substrate 11, but the process flow of the light bar 10 is increased.

The contour of the escape holes 54 conforms to the contour of the lens 13 so that the reflective paper 50 covers the bottom wall 231 to the maximum extent. In the present embodiment, the lens 13 has a spherical crown shape, and the corresponding avoiding hole 54 has a circular shape. Wherein, the diameter of the avoidance hole 54 is 15 mm-35 mm. Preferably, the relief holes 54 are 20mm in diameter.

In order to solve the above problem, referring to one embodiment, the included angle between the two opposite side edges of the cut-out 53 is 20 to 90 degrees when the reflective paper 50 is laid flat, which may affect the relationship between the two opposite side edges of the cut-out 53 when the reflective paper 50 is in the installation state (for example, the two opposite side edges of the cut-out 53 are overlapped with each other or the gap between the two opposite side edges of the cut-out 53 is too large). Meanwhile, the angle between the side wall 232 and the bottom wall 231 affects the included angle between the two opposite side edges of the shear mouth 53 of the side wall 232. Preferably, the included angle between the opposing side edges of the scissor opening 53 is 30 degrees.

In order to facilitate the folding of the folded edge 52 and the central area 51, referring to one embodiment, a plurality of sparse holes are formed at the folded edge between the central area 51 and the folded edge 52, and the sparse holes are sequentially arranged along the extending direction of the folded edge. Wherein the sparse holes are strip-shaped and extend along the side length direction of the corresponding central area 51.

In a specific form of the sparse hole, in an embodiment, the sparse hole is a hollow or slit, and when the folded edge 52 is folded relative to the central area 51, two edges of the sparse hole can be attached or attached relatively to each other, so as to avoid affecting the light reflection emitted by the light bar 10.

In order to provide a certain operating space for repairing the joint between the flexible light bar 14 and the light bar 10, in one embodiment, the distance between two opposite sides of the repairing hole 55 is greater than the width of the light bar 10 along the length direction of the flexible light bar 14; along the length direction of lamp strip 10, the distance between the two opposite sides of rework hole 55 is greater than the width of soft lamp strip 14.

In some embodiments, as shown in fig. 2 and 4, each light bar 10 is longitudinally spaced, and the LED beads 12 on each light bar 10 are aligned, and the flexible light bars 14 are transversely aligned, so that the repair holes 55 are aligned. LED lamp pearl 12 is the matrix distribution in backplate 20 inboard for the light source evenly distributed, each lamp strip 10 installation of being convenient for simultaneously.

In order to change the light emission of the direct type panel light 100, referring to an embodiment, in the same light bar 10, the LED lamp beads 12 include a plurality of first LED lamp beads 15 and a plurality of second LED lamp beads 16, the first LED lamp beads 15 and the second LED lamp beads 16 are alternately arranged, and the luminance or the color temperature of the first LED lamp beads 15 and the color temperature of the second LED lamp beads 16 are different (for example, the first LED lamp beads 15 emit white light, and the second LED lamp beads 16 emit yellow light). First LED lamp pearl 15 arranges with second LED lamp pearl 16 in turn, can make LED lamp pearl 12 on lamp strip 10 arrange compacter to reduce lamp strip 10 and occupy great straight following formula panel light 100 inner space.

On the same lamp strip 10, the position relation between the first LED lamp bead 15 and the second LED lamp bead 16 refers to one of the embodiments, in the same lamp strip 10, the adjacent first LED lamp bead 15 and the second LED lamp bead 16 are a set of lamp beads, and the distance between the first LED lamp bead 15 and the second LED lamp bead 16 in the same set of lamp beads is L1, the distance between the adjacent two sets of lamp beads is L2, and L1 is satisfied: l2 ═ 1: 2 to 8. Preferably, L1: l2 ═ 1: 6.

Specifically, L1 is 5 mm-10 mm, and L2 is 20 mm-40 mm. In this embodiment, L1 is 5mm and L2 is 30 mm.

Wherein, soft lamp strip 14 is located between two adjacent sets of lamp pearls, and is provided with a set of lamp pearl between two soft lamp strips 14 at most. The reworking hole 55 is close to one side of the reflective paper 50, and a set of lamp beads is disposed between the reworking hole 55 and the side at most.

In order to independently control the first LED lamp beads 15 and the second LED lamp beads 16, referring to one of the embodiments, in the same lamp strip 10, all the first LED lamp beads 15 are electrically connected through a first circuit, and all the second LED lamp beads 16 are electrically connected through a second circuit; the number of the soft light bars 14 is two, and the two soft light bars 14 are respectively electrically connected with the first circuit and the second circuit.

Wherein, two repair holes 55 corresponding to the same light bar 10 are arranged at intervals or continuously. When two repair holes 55 corresponding to the same light bar 10 are continuously formed, the two repair holes 55 are communicated with the avoidance holes 54 located between the two repair holes 55.

When two repair holes 55 corresponding to the same light bar 10 are continuously arranged, in order to reduce the length of the repair holes 55 as much as possible (the length direction of the repair holes 55 is identical to the length of the light bar 10), referring to one of the embodiments, the soft light bars 14 are located between two adjacent sets of light bars, and at most, one set of light bars is arranged between the two soft light bars 14. In this embodiment, a set of lamp beads is disposed between the two soft lamp strips 14.

Preferably, the length of the rework hole 55 is 80mm to 110 mm. In the present embodiment, the length of the rework hole 55 is 90 mm.

The position relationship between the first LED lamp beads 15 and the second LED lamp beads 16 on the same lamp strip 10, in other embodiments, the distance between two adjacent first LED lamp beads 15 in the same lamp strip 10 is equal to the distance between two adjacent second LED lamp beads 16; in any first LED lamp bead 15 and two adjacent second LED lamp beads 16, the distance from the first LED lamp bead 15 to one of the second LED lamp beads 16 is less than the distance from the first LED lamp bead 15 to the other second LED lamp bead 16.

Specifically, in the same light bar 10, in any first LED lamp bead 15 and two adjacent second LED lamp beads 16, the distance from the first LED lamp bead 15 to one of the second LED lamp beads 16 is L3, and the distance from the first LED lamp bead 15 to the other second LED lamp bead 16 is L4, and L3 is satisfied: l4 ═ 1: 1.5 to 6. Preferably, L3: l4 ═ 1: 2 to 4. In this embodiment, L3 is 5mm and L4 is 20 mm.

The substrate 11 may be a metal substrate, preferably an aluminum substrate, or an FR-4 glass fiber board. In some embodiments, the substrate 11 may be fixed to the lower surface of the back plate 20 by screws, preferably by thermal adhesive bonding.

As shown in fig. 7 to 11, in some embodiments, the substrate 11 includes a metal layer 111, an insulating layer 112 and a circuit layer 113, and the LED lamp bead 12 is soldered on the circuit layer 113. A bonding pad 115 for soldering the LED lamp bead 12 is generally disposed on the circuit layer 113. In order to provide protection for the circuit layer 113, the surface of the substrate 11 is coated with white solder resist ink to form a solder resist layer 144, and a window is left at the pad 115 to expose the pad 115 for soldering the LED lamp bead 12.

The lens 13 on the light bar 10 is mainly used for light diffusion, the lens 13 is fixed on the substrate 11 through epoxy glue or UV glue, for convenience of installation, the back of the lens 13 is provided with a convex foot 131, and the corresponding substrate 11 is provided with a positioning hole matched with the convex foot 131.

In some embodiments, the flexible light bars 14 are pressed on all the light bars 10 and perpendicularly intersect all the light bars 10, so that the light bars 10 and the flexible light bars 14 can be conveniently welded. The flexible light bar 14 is a strip-shaped structure and comprises an insulating layer 142, a circuit layer 143 and a solder mask layer 144, wherein the insulating layer 142 is made of an insulating resin material, and the solder mask layer 144 is formed by white solder mask ink coated on the surface.

In order to realize connection, the edge of the flexible light bar 14 has a first window 141 which is not coated with solder resist ink, the position of the substrate 11 close to the flexible light bar 14 also has a second window 114 which is not coated with solder resist ink, and the two openings are provided with solder pads, and the two windows are electrically connected by welding.

From the standpoint of processing and heat dissipation, the backplate 20 is stamped from a sheet metal material (e.g., ST13) to form a domed, cage-like structure that includes a central region 221 and an edge region 22 disposed about the periphery of the central region 221.

In the connection form of the side frame strips 41 and the corresponding edges of the diffuser plate 30 and the back plate 20, referring to one embodiment, each side frame strip 41 has a first mounting surface 42 and a second mounting surface 43 at different heights (the height here is the height in the vertical direction when the direct type panel lamp 100 is in the mounted state), the edge of the diffuser plate 30 is overlapped on the lower first mounting surface 42, and the edge region 22 of the back plate 20 is overlapped on the upper second mounting surface 43 and fixed by fastening screws.

The edge region 22 of the back plate 20 is deformed by itself to form a rib 24 extending along the side length direction of the back plate 20, so as to increase the strength of the edge region 22, in some embodiments, in order to reduce the processing difficulty of the rib 24, the edge region 22 is bent by itself to form the rib 24. The deformation is carried out by conventional processing methods such as mechanical punching.

The rib 24 abuts against the edge of the diffuser plate 30 to make it close to the first mounting surface 42, and because the back plate 20 has a certain elasticity, when the rib 24 abuts against the diffuser plate 30, the rib 24 is elastically deformed, so that the rib 24 applies pressure to the diffuser plate 30, and the rib 24 and the first mounting surface 42 cooperate to clamp the edge of the diffuser plate 30, so as to prevent the edge of the diffuser plate 30 from being bent, thereby preventing the central portion of the diffuser plate 30 (the geometric center of the diffuser plate 30 or the geometric center close to the diffuser plate 30) from collapsing downward.

In some embodiments, the side frame strips 41 are made of metal (e.g., aluminum alloy), and the adjacent ends of the side frame strips 41 are welded and fixed. Of course, the frame strips 41 may also be made of a polymer material by injection molding, and since the polymer material cannot be welded, corner pieces for connecting adjacent frame strips 41 are generally required to be disposed at corners of the frame 40, or the adjacent frame strips 41 are connected by lap joints, but compared with a welding process, the flatness of the frame 40 is poor.

In some embodiments, as shown in fig. 5 and 6, the cross section of the frame strip 41 is an L-shaped structure, and includes a horizontal portion 44 and a vertical portion 45, the edge of the diffuser plate 30 and the edge of the back plate 20 are overlapped on the horizontal portion 44, and the vertical portion 45 encloses a limited space for shielding the installation structure of the edge of the back plate 20, so as to achieve decoration and certain protection.

In some embodiments, to increase the strength of the profile, the thickness of the inner side of the corner of the frame strip 41 is increased to form a thickened portion 46, so as to form a step structure on the horizontal portion 44, and the first mounting surface 42 and the second mounting surface 43 are respectively located on the step structure and the horizontal portion 44. To save material, in some embodiments, the thickening is a hollow structure.

From a manufacturing and heat dissipation perspective, back 20 is stamped from sheet metal (e.g., ST13) to form a raised enclosure-like structure so that back 20 and diffuser 30 are spaced apart to accommodate light bar 10. in some embodiments, bottom wall 231 and diffuser 30 are arranged in parallel, light bar 10 is secured to bottom wall 231, and side walls 232 engage first ribs 24 tangentially.

In some embodiments, the portion of the edge region 22 overlapping the frame 40 is parallel to the bottom wall 231, and the bottom wall 231 is higher than the edge region 22. When the direct type panel lamp 100 is installed on a ceiling, the bottom wall 231 is horizontally disposed, and the portion of the corresponding edge region 22 overlapping the frame 40 is also horizontally disposed.

To facilitate positioning of the light bar 10, in some embodiments, as shown in fig. 1 and 2, the bottom wall 231 is provided with grooves for criss-cross positioning of the light bar 10. In order to facilitate the processing of the groove on the back plate 20, the back plate 20 is stamped to form a plurality of protrusions 211 facing away from the cavity 23, the groove is formed between the adjacent protrusions 211, the light bars 10 are arranged in parallel, therefore, the protrusions 211 are also arranged in parallel, and the gaps between the adjacent protrusions 211 are used for mounting the light bars 10, so that the light bars 10 are generally in a straight strip structure. Of course, the lamp strip can also be selected to adopt a snake disk type structure.

In some embodiments, the edge region 22 of the back panel 20 is fixed to the frame 40 by fastening screws, and for convenience of installation, the frame strip 41 is provided with screw grooves 471 arranged along the length direction thereof. In some embodiments, the horizontal portion 44 has a vertical fold 47 in the middle of its upper surface, the gap between the vertical fold 47 and the step structure forms the screw slot 471, and the top surface of the vertical fold 47 supports the edge region 22.

In order to reduce the weight of the back plate 20 itself, the thickness of the back plate 20 is 0.2mm to 0.4mm in some embodiments while satisfying the supporting strength of the back plate 20. Preferably, the thickness of the back plate 20 is 0.3 mm.

In order to enable the direct type panel light 100 to work normally, in one embodiment, as shown in fig. 1 and fig. 2, a driving module 101 is disposed on the direct type panel light 100, and the light bar 10 is electrically connected to the driving module 101 through a wire. In order to facilitate securing and protecting the drive module 101, the drive module 101 is often disposed within the drive cartridge 60. In one embodiment, as shown in fig. 12 and 15, the driving box 60 includes a box body 61 having an opening, and a top cover 62 fastened to the opening of the box body 61, the box body 61 is provided with a wire passing hole 612 for passing a connecting wire of the driving module 101, the box body 61 is disposed in a strip shape, the cross section of the box body 61 is a convex pentagon, the convex pentagon includes a first side 64, a second side 641, a third side 642, a fourth side 643 and a fifth side 644 which are sequentially disposed, wherein the first side 64 and the third side 642 are disposed in parallel, the second side is perpendicular to the first side 64 and the third side 642, a box wall corresponding to the first side 64 is attached to the second mounting surface 43, a box wall corresponding to the fifth side 644 is attached to the back plate 20, and a box wall corresponding to the second side 641 is disposed in an opening.

This application is through installing drive module 101 in drive box 60, convenient fixed and protection drive module 101, can also simplify the step that drive module 101 maintained or changed simultaneously to reduce time and human cost's spending.

In order to make the structure of the driving box 60 compact, in one embodiment, as shown in fig. 12, the first side 64 has a side length equal to that of the third side 642, and the fourth side 643 has a side length equal to that of the third side 642. In the present embodiment, the length of the first side 64 and the length of the third side 642 are both 20mm, the length of the second side 641 is 50mm, and the length of the fourth side 643 and the length of the fifth side 644 are both 30 mm.

In order to quickly locate the position of the drive magazine 60, in one embodiment, as shown in FIG. 12, the peripheral wall of the back plate 20 has a sloped region 25, and the corresponding magazine wall of the fifth edge 644 engages the sloped region 25. Wherein, the slope surface area 25 and the box wall corresponding to the fifth edge 644 have the same inclination angle and are attached to each other. The angle of inclination of the fifth side 644 varies with the angle of inclination of the sloped region 25 while the length of the sides of the convex pentagon varies with the angle of inclination of the fifth side 644.

In this embodiment, the angle between the ramp area 25 and the vertical axis is 10-20 degrees. Preferably, the ramp region 25 is angled at 16 degrees from the vertical axis.

In order to facilitate packaging of the two direct type panel lamps 100, the back plates 20 of the two direct type panel lamps 100 are oppositely disposed, and since the driving boxes 60 are located at the periphery of the back plate 20, and the top surfaces of the driving boxes 60 are higher than the back plate 20, the box walls corresponding to the fourth edges 643 of each driving box 60 abut against the slope areas 25 of the opposite sides. Wherein, on the same direct type panel light 100, the height of the slope region 25 is higher than that of the back plate 20, so that when two direct type panel lights 100 are packaged, the top surface of the driving box 60 will abut against the frame 40 of the other side, and a certain gap will exist between the two back plates 20 to prevent the back plates 20 from deforming.

In the mounting position of the drive cartridge 60, referring to one embodiment, a mounting area (not shown) is formed between the vertical portion 45 and the outer periphery of the back plate 20, and the drive cartridge 60 is disposed in the mounting area.

In the installation form of the driving box 60, referring to one embodiment, as shown in fig. 13, the two ends of the driving box 60 are provided with tabs 65 with screw holes, and the tabs 65 are fixed on the frame 40 (screw grooves 471) by fastening screws; the tab 65 is connected to the corresponding box wall of the first edge 64, and the bottom surface of the tab 65 is flush with the bottom surface of the box body 61. In order to reduce the difficulty of the processing technique between the lug plate 65 and the box body 61 and simultaneously enhance the structural strength between the lug plate 65 and the box body 61, the lug plate 65 and the box body 61 are integrally arranged.

In order to make the wire passing hole 612 escape from the back plate 20 and facilitate the operation of the connecting wire, referring to one embodiment, as shown in fig. 13 and 14, the wire passing hole 612 is opened on the box wall corresponding to the fourth edge 643; the driving box 60 further includes a cover plate 63, the cover plate 63 is mounted on the box body 61 and is matched with the wire passing hole 612, and the cover plate 63 is provided with a plurality of unit holes 631 corresponding to the wire passing hole 612. The unit holes 631 may be determined according to the number of the connection lines, which are respectively penetrated through the corresponding unit holes 631 to rapidly distinguish the connection lines.

The cover plate 63 is bent to form a shielding part 633 and a fixing part 634, and the fixing part 634 is attached and fixed to the box wall corresponding to the third side 642; the shield 633 is attached to the cartridge wall corresponding to the fourth side 643, and each of the cell holes 631 opens in the shield 633.

In order to avoid that foreign matters enter the drive cartridge 60 when the drive cartridge 60 is not used and affect the drive module 101, referring to one embodiment, as shown in fig. 13 and 14, the cover plate 63 is further provided with a plurality of unit covers 632, and the unit covers 632 are respectively provided in one-to-one correspondence with the unit holes 631. Further, the unit cover 632 is connected to the inner edge of the unit hole 631 by a deformable connector (not shown), and the unit cover 632 is opened by breaking the unit cover 632.

The driving case 60 is composed of a metal plate material to reinforce the structural strength of the driving case 60. In order to reduce the influence of the driving case 60 on the driving module 101, referring to one embodiment, the direct type panel lamp 100 further includes an insulating case 66 installed in the driving case 60, and the driving module 101 is installed in the insulating case 66.

The insulating box 66 is in a strip shape, at least one end of the insulating box 66 is opened in the driving box 60, and the open side is used for the connection line of the driving module 101 to pass through. In the present embodiment, both ends of the insulating case 66 are open.

In some embodiments, the cross section of the insulating box 66 is rectangular, the rectangular circumference is closed, one of two opposite side walls of the insulating box 66 is attached and fixed to one side wall of the box body 61, the other one is fixedly connected to the driving module 101, and when the insulating box 66 is fixed to the side wall of the box body 61 through bolts or rivets, the driving module 101 can avoid the bolts or rivets, so as to reduce the influence of the bolts or rivets on the driving module 101.

In the installation position of the insulating box 66, referring to one embodiment, the length direction of the driving box 60 is consistent with the length direction of the insulating box 66; one end of the insulating box 66 is adjacent to one end of the driving box 60, a wire passing cavity 611 is formed between the other end of the insulating box and the other end of the driving box 60, and the wire passing hole 612 is communicated with the wire passing cavity 611. The wire through hole 612 and the insulating box 66 are located on the same side wall of the box body 61, and the wire through hole 612 and the insulating box 66 are sequentially arranged along the length direction of the driving box 60.

In order to provide the wire passing chamber 611 with a certain operation space, in some embodiments, the length of the driving box 60 is D1, the length of the insulating box 66 is D2, and D1: d2 is 1.5-3. Preferably, D1: d2 ═ 2.

When the connecting wire of the driving module 101 enters the wire passing hole 612 from the end of the insulating box 66 far away from the wire passing cavity 611, in order to enable the connecting wire to pass through the gap between the driving box 60 and the insulating box 66, in some embodiments, the cross-sectional area of the driving box 60 is S1, the cross-sectional area of the insulating box 66 is S2, and S1 is satisfied: s2 is 1.2-2. Preferably, S1: s2 ═ 1.5.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. Direct type panel light convenient to overhaul, its characterized in that includes:

the LED lamp comprises a plurality of lamp strips arranged in parallel, wherein each lamp strip comprises a substrate, LED lamp beads fixed on the substrate and lenses covered on the LED lamp beads, and adjacent lamp strips are electrically connected through flexible lamp strips;

the central area of the back plate is raised to form a cavity for accommodating the light bars, the cavity comprises a flat bottom wall and inclined side walls, and each light bar is fixed on the bottom wall;

the diffusion plate has a light transmission function and is arranged opposite to the back plate to seal the cavity;

the frame is formed by splicing a plurality of frame strips, and each frame strip is connected with the diffusion plate and the corresponding edge of the back plate;

the light reflecting paper comprises a central area attached to the bottom wall, a plurality of repairing holes are formed in the central area, and the connection positions of the light bars and the soft light bars are in one-to-one correspondence with the corresponding repairing holes respectively.

2. The direct type panel lamp convenient to overhaul as claimed in claim 1, wherein the substrate is located between the reflective paper and the back plate, and the reflective paper is provided with avoiding holes for avoiding the LED lamp beads and the lens.

3. The direct type panel lamp convenient to overhaul as claimed in claim 1, wherein the light bars are longitudinally spaced, the LED lamp beads on the light bars are aligned, and the soft light bars are transversely arranged;

the positions of the repair holes are aligned.

4. The easy-to-overhaul direct type panel lamp as claimed in claim 1, wherein the distance between two opposite sides of the repair hole along the length direction of the lamp strip is greater than the width of the flexible lamp strip;

along the length direction of the soft lamp strip, the distance between the two opposite sides of the repairing hole is larger than the width of the lamp strip.

5. The direct type panel lamp convenient to overhaul of claim 1, wherein in the same lamp bar, the LED lamp beads comprise a plurality of first LED lamp beads and a plurality of second LED lamp beads, the first LED lamp beads and the second LED lamp beads are alternately arranged, and the first LED lamp beads and the second LED lamp beads have different brightness or color temperature.

6. The direct type panel lamp convenient to overhaul of claim 5, wherein in the same lamp strip, the adjacent first LED lamp bead and the second LED lamp bead are a set of lamp beads, the distance between the first LED lamp bead and the second LED lamp bead in the same set of lamp beads is L1, the distance between the adjacent two sets of lamp beads is L2, and L1 is satisfied: l2 ═ 1: 2 to 8.

7. The direct type panel lamp convenient to overhaul as claimed in claim 6, wherein the rework hole is near one edge of the reflective paper, and at most one set of beads is disposed between the rework hole and the edge.

8. The direct type panel lamp convenient to overhaul as claimed in claim 6, wherein all the first LED lamp beads are electrically connected through a first circuit, and all the second LED lamp beads are electrically connected through a second circuit;

the number of the soft light bars is two, and the two soft light bars are respectively and electrically connected with the first circuit and the second circuit;

the two repairing holes corresponding to the same lamp strip are arranged at intervals or continuously.

9. The direct type panel lamp convenient to overhaul of claim 8, wherein the flexible light bars are located between two adjacent sets of light beads, and at most one set of light beads is arranged between two flexible light bars.

10. The easy-to-overhaul direct type panel lamp as claimed in claim 1, wherein the reflective paper further comprises a folded edge extending along a side length direction of a central area, a cut is formed at a corner of the folded edge, the central area of the reflective paper is attached to the bottom wall, the folded edge is attached to the side wall, and two opposite side edges of the cut are attached to form a box-shaped structure.

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