CN217273711U - Direct type panel lamp - Google Patents

Abstract

The utility model discloses a straight following formula panel light, include: a back plate having opposing first and second sides; the light-emitting assembly comprises a plurality of light bars fixed on the first side surface, and each light bar comprises a substrate, LED lamp beads arranged on the substrate and a plurality of electronic components forming the driving module; a diffuser plate disposed opposite the back plate; the frame is a frame structure formed by connecting a plurality of frame strips, and the edges of the back plate and the diffusion plate are fixed on the frame. The direct type panel lamp integrates the driving module on the lamp strip, thereby omitting complex wiring operation; through independently configuring the driving module for each lamp strip, the driving efficiency is effectively improved, and the light emitting effect of the direct type panel lamp is ensured.

Description

Direct type panel lamp

Technical Field

The utility model relates to a panel light technical field especially relates to a straight following formula panel light.

Background

The direct type panel lamp is an illuminating lamp with wide application scenes and generally comprises a lamp body and a driving power supply, wherein a light-emitting component is arranged in the lamp body, the light-emitting component comprises a lamp strip and lamp beads arranged on the lamp strip, and the driving power supply penetrates through the lamp body through a power line and is connected with the light-emitting component. Most of the existing direct type panel lamps have the problems of complex installation of a driving power supply, difficult wiring and wiring with a light-emitting component and the like.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a with the integrated straight following formula panel light on the lamp strip of drive module.

Direct type panel light includes:

a back plate having opposing first and second sides;

the light-emitting assembly comprises a plurality of light bars fixed on the first side surface, and each light bar comprises a substrate, LED lamp beads arranged on the substrate and a plurality of electronic components forming the driving module;

the diffusion plate is arranged opposite to the back plate and forms a cavity for accommodating the light-emitting assembly with the back plate;

the frame is a frame structure formed by connecting a plurality of frame strips, and the edges of the back plate and the diffusion plate are fixed on the frame.

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 back plate is of a housing structure and comprises a bottom wall and a side wall, the bottom wall is arched and used for fixing the light bar, and a convex rib extending along the side length of the back plate is arranged in the edge area of the side wall.

Optionally, each side frame strip has a first mounting surface and a second mounting surface at different heights along the height direction of the direct type panel lamp, the edge area of the back plate is lapped on the higher second mounting surface, and the convex rib is abutted against the diffusion plate to enable the diffusion plate to be attached to the lower first mounting surface.

Optionally, the light bars are arranged side by side along the length direction of the back plate and are connected in parallel through wires.

Optionally, along the length direction of the light bars, the electronic components on the same light bar are adjacent to the end regions of the light bars.

Optionally, the number of the LED lamp beads is at least two, and the electronic components on the same lamp strip are divided into two groups, and along the length direction of the lamp strip, from one end of the lamp strip, the arrangement order of the two groups of electronic components and the LED lamp beads is as follows: the LED lamp comprises a first group of electronic components, one LED lamp bead, a second group of electronic components and the rest LED lamp beads.

Optionally, the driving module includes a rectifying circuit, a filtering circuit and a power conversion circuit coupled in sequence, the rectifying circuit has an ac input end connected to the ac power, and the power conversion circuit has a dc output end.

Optionally, the driving module further includes a fuse F1 and a zener diode RV 1;

the alternating current input end comprises a first input end ACN and a second input end ACL, and the voltage stabilizing diode RV1 is connected between the two input ends in parallel; the rectifier circuit comprises a rectifier bridge DB1, and the fuse F1 is connected between the first input end ACN and the rectifier bridge DB1 in series.

Optionally, the filter circuit includes a capacitor CD1 and a resistor R1 connected in parallel.

Optionally, the capacitor CD1 is an electrolytic capacitor and belongs to the second group of electronic components.

Compared with the prior art, the direct type panel lamp integrates the driving module into the lamp strip, thereby omitting complex wiring operation; through independently configuring the driving module for each lamp strip, the driving efficiency is effectively improved, and the light emitting effect of the direct type panel lamp is ensured.

Drawings

FIG. 1 is a schematic view of a direct type panel lamp according to an embodiment;

FIG. 2A is a partial cross-sectional view of FIG. 1;

FIG. 2B is a schematic view of an embodiment of a bezel;

FIG. 3 is a schematic view of a light emitting device;

FIG. 4 is a schematic diagram of a driver module in one embodiment;

FIG. 5 is a schematic circuit diagram of a direct type panel lamp according to an embodiment.

The reference numerals in the figures are illustrated as follows:

100. a back plate; 110. a first side surface; 120. a second side surface; 130. a bottom wall; 140. a side wall; 141. an edge region; 142. a rib is protruded; 143. a wire passing hole;

200. a light emitting assembly; 210. a light bar; 211. a substrate; 212. LED lamp beads; 213. an electronic component; 214. a first group of electronic components; 215. a second set of electronic components; 216. a wire;

300. a drive module; 310. a rectifying circuit; 320. a filter circuit; 330. a power conversion circuit;

400. a diffusion plate;

500. a frame; 510. a frame strip; 511. a first mounting surface; 512. a second mounting surface;

600. a power line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The conventional linear panel lamp is generally supplied with power by direct current at low voltage, an external driving power supply is required to be installed for driving a plurality of lamp strips of a light-emitting assembly, the driving capability of the conventional linear panel lamp depends on the power of the external power supply, the size of the general high-power driving power supply is large, a large installation and heat dissipation space is required, and the problem that the external driving power supply is difficult to wire with the light-emitting assembly is solved.

To solve the above problems, referring to fig. 1 to 3, an embodiment of a direct type panel lamp includes a back plate 100, a light emitting assembly 200, a diffuser plate 400 and a frame 500, wherein the back plate 100 has a first side surface 110 and a second side surface 120 opposite to each other along a thickness direction, the light emitting assembly 200 includes a plurality of light bars 210 fixed to one side surface of the back plate 100, in the embodiment, the light bars 210 are fixed to the first side surface 110, the diffuser plate 400 has a light transmitting function and is disposed opposite to the back plate 100, and the light bars and the diffuser plate define a cavity for accommodating the light emitting assembly 200; the frame 500 is used to fix the edges of the back plate 100 and the diffusion plate 400, and is a frame structure formed by connecting a plurality of frame bars 510, and the number of the frame bars 510 is usually 4. Different with present straight following formula panel light, every lamp strip 210 includes base plate 211 and, LED lamp pearl 212 and a plurality of electronic components 213 of constituteing drive module 300 of setting on base plate 211 effectively with drive module 300 integration on lamp strip 210, through at every lamp strip 210 independent configuration drive module 300, not only reduce every drive module 300's volume effectively, can drive all lamp strips 210 by the high efficiency moreover, guarantee luminous homogeneity.

The substrate 211 may be a glass fiber board, such as FR-4 glass fiber board, and the substrate 211 may be bonded to the rear panel 100 by a thermal conductive adhesive.

Referring to fig. 2, the back plate 100 is generally a housing structure, and includes a bottom wall 130 and a side wall 140, wherein the bottom wall 130 is raised to facilitate mounting of the light bar 210, and may be formed by stamping a metal plate; however, when the direct type panel light is in use, because the light bar 210 is disposed on the lower surface of the bottom wall, under the long-time action of gravity, the central area of the back plate 100 tends to collapse, which leads to the upwarp of the corner portion thereof, if the strength of the frame 500 is not enough, the frame 500 is also pulled to deform and turn over, and in order to solve the technical problem, the edge area 141 of the side wall 140 has the convex rib 142 extending along the side length of the back plate 100.

Corresponding to the structure of the back panel 100, along the height direction of the direct type panel lamp, each frame strip 510 of the frame 500 has a first mounting surface 511 and a second mounting surface 512 (fig. 2B) at different heights, the edge area 141 of the back panel 100 can be lapped on the higher second mounting surface 512, and the arranged convex rib 142 can be abutted against the diffusion plate 400 to enable the diffusion plate to be attached to the lower first mounting surface 511, so that the supporting strength of the whole back panel 100 is increased, particularly the structural strength of the edge area 141, the phenomenon that the back panel 100 pulls the frame 500 to cause deformation is avoided, thereby ensuring that the direct type panel lamp can be applied to a mounting plane, and gaps are not easy to occur. Further, the ribs 142 are provided in plural, and may be arranged in series or at intervals.

In addition, referring to fig. 1, a wire through hole 143 (shielded) is further formed on the back plate 100, and one end of the power line 600 can extend into the cavity and be connected to the driving module 300, for example, in an embodiment, the wire through hole 143 is formed on the sidewall 140 of the back plate 100.

In consideration of the uniformity of the light, in one embodiment, the light bars 210 are arranged side by side along the length of the back plate 100 and are connected in parallel by the wires 216.

To facilitate wiring, along the length of light bar 210, electronic components 213 on the same light bar 210 are adjacent to the end regions of light bar 210. Further, the positions of the electronic components 213 on the light bars 210 are arranged in parallel.

The number of the LED lamp beads 212 on the lamp strip 210 is usually at least two, and in order to reduce the generation of light spots, the electronic components 213 on the same lamp strip 210 are divided into two groups, and along the length direction of the lamp strip 210, from one end of the lamp head, the arrangement order of the two groups of electronic components 213 and the LED lamp beads 212 is: a first group of electronic components 214, one of the LED lamp beads, a second group of electronic components 215, and the rest of the LED lamp beads.

Referring to fig. 4 and 5, in an embodiment, the driving module 300 includes a rectifying circuit 310, a filtering circuit 320 and a power converting circuit 330, which are coupled in sequence, the rectifying circuit 310 has an ac input end connected to ac, and the ac input end can be directly connected to the live wire and the neutral wire, so as to omit cumbersome wiring operations; the power conversion circuit 330 has a dc output terminal, and the output dc is transmitted to each LED lamp bead 212 through the circuit.

The filter circuit 320 includes a capacitor and a resistor R1 connected in parallel, and achieves the filtering function by using the charge-discharge principle of the capacitor. The capacitor may be an electrolytic capacitor CD1, which is attributed to the second set of electronic components 213 in view of the generation of light spots and heat dissipation problems due to the relatively large volume of the electrolytic capacitor.

In addition, the driving module 300 further includes a fuse F1 and a zener diode RV1, the ac input terminal generally has a first input terminal ACN and a second input terminal ACL, the zener diode RV1 is connected in parallel between the two input terminals, the rectifying circuit 310 includes a rectifying bridge DB1, and the fuse F1 is connected in series between the first input terminal ACN and the rectifying circuit 310 to protect the rectifying circuit 310.

Compared with the prior art, the driving module 300 is integrated on the light bar 210, so that complicated wiring operation can be omitted; by independently configuring the driving module 300 for each light bar 210, the driving efficiency is effectively improved, and the light emitting effect of the direct type panel light is ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

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

a back plate having opposing first and second sides;

the light-emitting assembly comprises a plurality of light bars fixed on the first side face, and each light bar comprises a substrate, LED (light-emitting diode) lamp beads arranged on the substrate and a plurality of electronic components forming the driving module;

the diffusion plate is arranged opposite to the back plate and forms a cavity for accommodating the light-emitting assembly with the back plate;

the frame is a frame structure formed by connecting a plurality of frame strips, and the edges of the back plate and the diffusion plate are fixed on the frame.

2. The direct type panel lamp according to claim 1, wherein the back plate is of a housing structure, and comprises a bottom wall and side walls, the bottom wall is arched and is used for fixing the light bar, and edge areas of the side walls are provided with ribs extending along the side length of the back plate.

3. The direct type panel lamp according to claim 2, wherein each of the frame strips has a first mounting surface and a second mounting surface at different heights in a height direction of the direct type panel lamp, the edge region of the back plate is overlapped with the second mounting surface, and the rib abuts against the diffusion plate to be attached to the first mounting surface.

4. The direct type panel lamp according to claim 1, wherein the light bars are arranged side by side along the length direction of the back plate and connected in parallel through wires.

5. The direct type panel lamp as claimed in claim 4, wherein the electronic components on the same lamp strip are adjacent to the end regions of the lamp strip along the length direction of the lamp strip.

6. The direct type panel lamp as claimed in claim 5, wherein the number of the LED lamp beads is at least two, the electronic components on the same lamp strip are divided into two groups, and the two groups of electronic components and the arrangement sequence of the LED lamp beads from one end of the lamp strip along the length direction of the lamp strip are as follows: the LED lamp comprises a first group of electronic components, one LED lamp bead, a second group of electronic components and the rest of LED lamp beads.

7. The direct type panel lamp according to claim 6, wherein the driving module comprises a rectifying circuit with an AC input connected to an AC power, a filtering circuit and a power converting circuit with a DC output, which are coupled in sequence.

8. The direct type panel lamp according to claim 7, wherein the driving module further comprises a fuse F1 and a zener diode RV 1;

the alternating current input end comprises a first input end ACN and a second input end ACL, and the voltage stabilizing diode RV1 is connected between the two input ends in parallel; the rectifier circuit comprises a rectifier bridge DB1, and the fuse F1 is connected between the first input end ACN and the rectifier bridge DB1 in series.

9. The direct type panel lamp according to claim 7, wherein the filter circuit comprises a capacitor CD1 and a resistor R1 connected in parallel.

10. The direct type panel lamp according to claim 9, wherein the capacitor CD1 is an electrolytic capacitor and is attributed to the second set of electronic components.

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