CN217302724U - Panel light - Google Patents

Abstract

The application discloses panel light, including frame, drive power supply and a plurality of light-emitting component, have two at least light-emitting areas in the space that the frame encloses, each light-emitting component sets up respectively in each light-emitting area, and light-emitting component includes that partial border overlap joint is in backplate and diffuser plate on the frame, the regional crooked butt in border of every backplate the diffuser plate, the central zone arch and form the sunken of the lateral wall that has flat diapire and slope in the side of relative diffuser plate, install the orientation on the diapire the lamp strip of diffuser plate, drive power supply sets up between two adjacent light-emitting component, drive power supply with the lamp strip electricity is connected. Compared with the prior art, the scheme has the advantages that the space between the two adjacent light-emitting assemblies meets the requirement of placing the driving power supply, so that the installation structure of the driving power supply is simplified, and the driving power supply is convenient to disassemble and assemble.

Description

Panel light

Technical Field

The application relates to the field of lamps, in particular to a panel lamp.

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 surface of the frame, the diffusion plate is installed on the front surface of the frame, the light-emitting elements are arranged between the back plate and the diffusion plate and installed on the lower surface of the back plate, and the driving power supply is installed 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.

In the prior art, the driving power supply is usually fixed on the back plate through the mounting of structures such as a driving box, and the mounting and dismounting of the driving power supply are complicated.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present application provides a panel lamp including:

the frame is provided with at least two light emitting areas in a space surrounded by the frame;

the light emitting assemblies are arranged in the light emitting areas, each light emitting assembly comprises a back plate and a diffusion plate, part of the edges of the back plate are overlapped on the frame, the edge area of the back plate is bent to abut against the diffusion plate, the central area is arched, a recess with a flat bottom wall and an inclined side wall is formed on the side face opposite to the diffusion plate, and a light bar facing the diffusion plate is installed on the bottom wall;

the driving power supply is arranged between the two adjacent light-emitting assemblies and electrically connected with the light bar.

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, a barrier strip for dividing the inner space of the frame into a plurality of light emitting areas is arranged in the frame, and one edge of the diffusion plate and one edge of the back plate are lapped on the barrier strip.

Optionally, the frame is formed by splicing a plurality of frame strips;

the side frame strips and the stop strips are provided with screw grooves arranged along the length direction of the side frame strips, and the edges of the back plates are respectively matched with the corresponding screw grooves through fastening screws.

Optionally, the cross section of each frame strip is of an L-shaped structure and comprises a horizontal portion and a vertical portion, the edges of the diffusion plate and the back plate are overlapped on the horizontal portion, and the vertical portion encloses a limiting space for shielding the mounting structure on the edge of the back plate.

Optionally, the bottom surface of the frame is flush with the bottom surface of the barrier strip.

Optionally, two ends of the barrier strip are provided with bumps lapped on the frame.

Optionally, the protruding block is connected with the barrier strip through a screw, and a thread groove arranged along the length direction of the barrier strip is arranged on the barrier strip.

Optionally, the cross section of the bump is of a U-shaped structure, and the bump is reversely buckled on the barrier strip.

Optionally, the protruding block abuts against the edge of the adjacent back plate.

Optionally, the driving power supply is fixedly mounted on the barrier strip.

In the panel light in this application, the space between two adjacent light-emitting component satisfies drive power supply and places to play the mounting structure who simplifies drive power supply, the dismouting of the drive power supply of being convenient for.

Drawings

FIG. 1 is a schematic view of a panel light according to one embodiment of the present disclosure;

FIG. 2 is a schematic structural view of the frame and the barrier strip of FIG. 1;

FIG. 3 is a partial schematic view of the panel light of FIG. 1;

FIG. 4 is a partial schematic view of the panel light of FIG. 1;

FIG. 5 is a schematic view of a portion of the panel light of FIG. 1;

FIG. 6 is a schematic structural view of the LED lamp bead and the lens in FIG. 5;

FIG. 7 is a schematic view of the structure of the substrate shown in FIG. 5;

FIG. 8 is a schematic diagram of the conductive strip structure in FIG. 5;

fig. 9 is a schematic structural view of the frame strip in fig. 2.

The reference numerals in the figures are illustrated as follows:

100. a panel light; 101. a light emitting region;

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

20. a light emitting assembly; 21. a back plate; 211. a central region; 2111. a bottom wall; 2112. a side wall; 212. an edge region; 2121. a rib is protruded; 213. recessing; 22. a diffusion plate;

30. blocking strips; 31. a first vertical plate; 311. a screw groove; 32. a second vertical plate; 33. a bump;

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 part; 47. vertically folding; 471. a screw groove.

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 obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to 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 3, the present application provides a panel light 100, which includes a frame 40, a light bar 10, a driving power source, and at least two light emitting assemblies 20, wherein a space surrounded by the frame 40 has at least two light emitting areas 101, each light emitting assembly 20 is respectively disposed in each light emitting area 101, each light emitting assembly 20 includes a back plate 21 and a diffusion plate 22, and a portion of the edge of each light emitting assembly is overlapped on the frame 40, and the light bar 10 is located between the back plate 21 and the diffusion plate 22 and electrically connected to the driving power source.

Due to the arrangement of the light emitting areas 101, after the light bar 10 in a single light emitting area 101 is damaged, the panel lamp 100 can be refitted by replacing the light bar 10 in the light emitting area 101, so that the purpose of normal use of the panel lamp 100 is achieved.

From the viewpoint of processing and heat dissipation, the back panel 21 is a housing-like structure formed by stamping a metal plate (e.g., ST13), the back panel 21 includes a central region 211 and an edge region 212 disposed at the outer periphery of the central region 211, the central region 211 is arched and forms a recess 213 having a flat bottom wall 2111 and inclined side walls 2112 at the side opposite to the diffuser panel 22, and the bottom wall 2111 is provided with the light bar 10 facing the diffuser panel.

Due to gravity, the central area of the diffuser 22 will collapse, forming a micro-curved structure, resulting in non-uniform light diffusion. To address this issue, in some embodiments, as shown in FIG. 3, the edge region 212 of the back plate 21 is bent to abut the diffuser plate 22. Specifically, the edge region 212 of the housing 21 is deformed to form a rib 2121 extending along the side of the housing 21, the rib 2121 can increase the supporting strength of the housing 21, and the tip of the rib 2121 abuts against the diffuser 22 to fix the diffuser 22. Because the back plate 21 has a certain elasticity, when the rib 2121 abuts against the diffusion plate 22, the position where it is connected to the edge region is elastically deformed, so that the rib 2121 can apply pressure to the diffusion plate 22.

The ribs 2121 should be located outside the contact position between the back plate 21 and the diffusion plate 22 and serve as supporting points for supporting the diffusion plate 22, and when the back plate 21 abuts against the diffusion plate 22, the edge region of the diffusion plate 22 is bent, so that the center region of the diffusion plate 22 is lifted up against its own weight.

In the present embodiment, the driving power source is disposed between two adjacent light emitting assemblies 20. The space between two adjacent light emitting assemblies 20 satisfies that the driving power supply is placed, so that the mounting structure of the driving power supply is simplified, and the driving power supply is convenient to disassemble and assemble. The driving power source may include an ON/OFF normal drive, a DALI dimming drive, an inductor, and the like. In some embodiments, multiple light emitting assemblies 20 share the same driving power source.

In forming the light emitting regions 101, referring to fig. 1, 2 and 4, in one embodiment, a barrier 30 is disposed in the frame 40 to separate the inner space into a plurality of light emitting regions 101, and one edge of the diffusion plate 22 and the back plate 21 overlaps the barrier 30. The frame 40 is formed by splicing a plurality of (usually four) frame bars 41, and each frame bar 41 is connected to the corresponding edges of the diffuser 22 and the back plate 21. In some embodiments, the drive power source is fixedly mounted to the barrier strip 30.

The region enclosed by the frame 40 is annular, and two ends of the barrier strip 30 are respectively connected with the frame 40 to divide the region enclosed by the frame 40 to form the corresponding light emitting region 101. In another embodiment, the area enclosed by the frame 40 is substantially rectangular, and the barrier 30 divides the inside into two light emitting areas 101 arranged in a rectangular shape.

In order to maintain the flatness of the bottom surface of the panel light 100 in the installed state of the panel light 100, in one embodiment, the bottom surface of the rim 40 is flush with the bottom surface of the barrier strip 30.

In order to further ensure that the bottom surface of the frame 40 is flush with the bottom surface of the barrier strip 30, in this embodiment, the two ends of the barrier strip 30 are provided with protrusions 33 overlapping the frame 40. In some embodiments, the bumps 33 abut against the edge of the adjacent back plate 21.

In the connection manner of the protrusion 33 and the barrier strip 30, referring to one embodiment, the protrusion 33 is connected to the barrier strip 30 by a screw. Wherein, the barrier strip 30 is provided with a spiral groove 311 arranged along the length direction thereof. The projection 33 has a through hole for a screw to pass through, and the screw passes through the through hole and then is in threaded connection with the screw slot 311. In the formation of the screw groove 311, the upper surface of the barrier 30 has two first risers 31 arranged in parallel, and the screw groove 311 is formed between the two first risers 31. In the specific formation of the bump 33, referring to one embodiment, the cross section of the bump 33 is a U-shaped structure, and is reversely buckled on the barrier 30. Specifically, part of the two first risers 31 is located in the U-shaped structure.

In this embodiment, as shown in fig. 5 to 6, each light bar 10 is of a strip structure and is arranged in parallel, each light bar 10 includes a substrate 11 and a plurality of LED beads 12 mounted on the substrate 11, each LED bead 12 is sequentially arranged along the length direction of the light bar 10, and the LED beads 12 are distributed in a matrix form inside the back plate 21, so that the light sources are uniformly distributed. The light bar 10 further comprises a lens 13 covering the LED lamp beads 12, the diffusion plate 22 has a light transmission function, light emitted by the LED lamp beads 12 sequentially penetrates through the lens 13 and the diffusion plate 22, and a plurality of LED point light sources form a uniform surface light source after light diffusion.

In some embodiments, as shown in fig. 5, all the light bars 10 are connected in parallel by a conductive strip 14, and the conductive strip 14 is connected to each light bar 10 by welding; the conductive strips 14 are pressed on all the light bars 10 and perpendicularly intersect with all the light bars 10. Wherein, each lamp strip 10 all is vertical interval arrangement, and conducting strip 14 all is horizontal arranging. In order to realize the electrical connection between the conductive strips 14 and the light bar 10, the edge of the conductive strip 14 has a first window 144, the substrate 11 has a second window 114 at a position close to the conductive strip 14, and pads are disposed at the two windows, which are electrically connected by soldering.

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 is coated with white solder resist ink to improve light reflection efficiency. The substrate 11 may be fixed to the lower surface of the back plate 21 by screws, preferably, by bonding with a thermally conductive adhesive.

As shown in fig. 6 to 8, in some embodiments, the substrate 11 includes a first metal layer 111, a first insulating layer 112 and a first circuit layer 113, and the LED lamp bead 12 is soldered on the first circuit layer 113. A pad for soldering the LED lamp bead 12 is generally disposed on the first circuit layer 113. In order to provide protection for the first circuit layer 113, the surface of the substrate 11 is coated with white solder resist ink to form a first solder resist layer, and a window is left at the pad to expose the pad 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.

The conductive strip 14 includes a second insulating layer 141, a second circuit layer 142, and a second solder resist layer 143, wherein the second insulating layer 141 is made of an insulating resin material, and the second solder resist layer 143 is formed of white solder resist ink coated on the surface, so that the position where the conductive strip 14 is disposed also has a light reflecting function. To make the connection, the edge of the conductive strip 14 has a first window 144 without solder resist ink, the substrate 11 has a second window 114 without solder resist ink near the conductive strip 14, and the two openings are provided with solder pads, which are electrically connected by soldering.

In the specific configuration of the side frame strip 41, referring to one embodiment, the side frame strip 41 is made of metal section (e.g. aluminum alloy), and the end portions of the adjacent 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. 3, 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 22 and the edge of the back plate 21 both overlap the horizontal portion 44, and the vertical portion 45 encloses a limited space for shielding the mounting structure of the edge of the back plate 21, so as to provide decoration and certain protection.

In order to increase the strength of the sectional material, according to one embodiment, the thickness of the inner side of the corner of the side frame strip 41 is increased to form a thickened portion 46, so that a step structure is formed on the horizontal portion 44 to form a first mounting surface 42 and a second mounting surface 43 on the step structure and the horizontal portion 44, the edge of the diffuser plate 22 is overlapped on the lower first mounting surface 42, and the edge of the back plate 21 is overlapped on the upper second mounting surface 43 and is fixed by fastening screws. To save material, in some embodiments, thickened portion 46 is a hollow structure.

In some embodiments, as shown in fig. 1 to 3, the edge of the back plate 21 is fixed to the frame 40 and the barrier strip 30 by fastening screws. The frame strips 41 and the barrier strips 30 are provided with screw grooves 471 arranged along the length direction thereof, and the edge of each back plate 21 is engaged (e.g., screwed) with the corresponding screw groove 471 by a fastening screw. In some embodiments, as shown in fig. 9, for the side frame strip 41, the middle of the upper surface of the horizontal portion 44 has a vertical fold 47, 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 of the back plate 21. As shown in fig. 2, with respect to the barrier 30, the upper surface of the barrier 30 has two second risers 32 arranged in parallel, the screw groove 471 is formed between the two second risers 32, and the top surfaces of the second risers 32 support the edge of the back plate 21.

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. Features of different embodiments are shown in the same drawing, which is to be understood as also disclosing combinations of the various 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. Panel light, its characterized in that includes:

the frame is provided with at least two light emitting areas in a space surrounded by the frame;

the light emitting assemblies are arranged in the light emitting areas, each light emitting assembly comprises a back plate and a diffusion plate, part of the edges of the back plate are overlapped on the frame, the edge area of the back plate is bent to abut against the diffusion plate, the central area is arched, a recess with a flat bottom wall and an inclined side wall is formed on the side face opposite to the diffusion plate, and a light bar facing the diffusion plate is installed on the bottom wall;

and the driving power supply is arranged between two adjacent light-emitting components and is electrically connected with the light bar.

2. The panel light as claimed in claim 1, wherein a barrier is disposed in the frame to divide the inner space into a plurality of light-emitting areas, and one of the edges of the diffuser plate and the back plate overlaps the barrier.

3. The panel lamp as claimed in claim 2, wherein the bezel is formed by splicing a plurality of bezel bars;

the side frame strips and the barrier strips are provided with screw grooves arranged along the length direction of the side frame strips and the barrier strips, and the edges of the back plates are respectively matched with the corresponding screw grooves through fastening screws.

4. The panel lamp as claimed in claim 3, wherein the bezel has an L-shaped cross section, and comprises a horizontal portion and a vertical portion, the diffuser plate and the edge of the back plate are overlapped with the horizontal portion, and the vertical portion encloses a limited space for shielding the mounting structure of the edge of the back plate.

5. The panel light of claim 2, wherein a bottom surface of the bezel is flush with a bottom surface of the barrier strip.

6. The panel light as claimed in claim 2 or 5, wherein the two ends of the barrier strip are provided with protrusions overlapping the bezel.

7. The panel light as claimed in claim 6, wherein the protrusion is connected with the barrier strip by a screw, and the barrier strip is provided with a screw groove arranged along a length direction thereof.

8. The panel light as claimed in claim 7, wherein the protrusion has a U-shaped cross section and is reversely buckled to the barrier strip.

9. The panel light of claim 6, wherein the bumps abut against an edge of an adjacent back plate.

10. The panel light of claim 2, wherein the driving power source is fixedly mounted on the barrier strip.

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