WO2020047950A1

WO2020047950A1 - Panel light

Info

Publication number: WO2020047950A1
Application number: PCT/CN2018/110610
Authority: WO
Inventors: 王铁柱; 杨敏; 关景瑞; 赵春晓; 陈新豪; 黄文传; 梁仕权
Original assignee: 佛山市国星光电股份有限公司
Priority date: 2018-09-05
Filing date: 2018-10-17
Publication date: 2020-03-12
Also published as: CN109099345A

Abstract

A panel light, comprising a panel frame (1) and a light-emitting module (7); the panel frame (1) is made of a metal sheet, and comprises a panel frame front panel (101), panel frame side panels (102) and a panel frame connecting panel (103), wherein a clamping groove (105) is formed between the panel frame front panel (101), the panel frame side panels (102) and the panel frame connecting panel (103), and the clamping groove (105) is molded by means of the metal sheet undergoing secondary bending; the panel frame (1) encapsulates the light-emitting module (7) on the basis of the clamping groove (105) to form the panel light. The provided panel light has characteristics such as a simple structure, low assembly difficulty, good anti-light leakage performance, low shipping costs, etc.

Description

Panel light

This application claims the priority of a Chinese patent application with the application number 201811034027.7, the application date of September 5, 2018, and the invention of a panel light.

Technical field

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

Background technique

At present, most panel lights on the market are composed of a frame, a back plate, and a light-emitting module. The frame in the panel light is made of several profiles, and the profiles are combined by riveting, connecting pieces, etc. The completed frame is used to install the light-emitting module and the backplane.

On the one hand, because the profile parts are fragmented, the steps of using the profile to make the frame are tedious and the time cost is high; on the other hand, in order to avoid light leakage from the frame, the connection between the profiles requires higher precision and greater process difficulty. In the process of transportation, it is easily affected by factors such as vibration, which can cause cracks at the connection position of the profile, and increase the gap between the mating parts. Defective rate of panel lights.

Summary of the Invention

In order to overcome the shortcomings of the existing panel lights, the present invention provides a panel light, which is made of a metal sheet for the surface frame, and has the characteristics of simple structure, low assembly difficulty, good light leakage prevention performance, easy transportation, and low cost.

Accordingly, the present invention provides a panel light, the panel light includes a face frame and a light emitting module;

The face frame is made of a metal sheet and includes a face frame front panel, a face frame side panel, and a face frame connection plate. A card slot is formed between the face frame front panel, the face frame side panel, and the face frame connection plate. The card slot is formed by bending the metal sheet through secondary bending;

The face frame encapsulates the light emitting module into a panel light based on the card slot, the face frame contacts the front edge of the light emitting module based on the face frame front panel, and the face frame encapsulates the light emission based on the face frame side panel. Around the module, the face frame forms a limit based on the face frame connection board contacting the back of the light emitting module.

A buckle hole is provided on the face frame connecting plate of the panel light;

A buckle adapted to the buckle hole is provided at a position on the back of the light-emitting module corresponding to the buckle hole;

After the buckle passes through the buckle hole, it is bent and pressed on the face frame connection plate.

The buckle holes correspond one-to-one with the buckle holes, and the buckle holes are arranged in a line on the face frame connecting plate in an equal interval manner.

The buckle is a strip-shaped metal sheet.

The face frame connecting plate and the back of the light emitting module are fixed by welding; the face frame connecting plate and the back of the light emitting module are fixed by bonding; the face frame connecting plate and the back of the light emitting module are screwed. The way is fixed.

The face frame is made of a hollow metal sheet.

The face frame front panel has a rectangular frame structure, a circular frame structure, a triangular frame structure, a pentagon frame structure, or a hexagon frame structure.

The hollowed-out contour of the middle of the metal foil is located in the bottom contour of the light-emitting module, and the face-frame connection plate in any direction is in contact with the bottom surface of the light-emitting module. The module is transparent.

Lifting ears are provided on the back of the light-emitting module.

Each of the secondary bending angles is 90 °.

The metal sheet is a sheet metal piece.

The thickness of the metal foil ranges from 0.4 mm to 0.65 mm.

The light emitting module includes a back plate, compressed cotton, reflective paper, a light guide plate, a diffusion plate, and a PCB;

From the front of the back plate, the compression cotton, reflective paper, light guide plate, and diffuser plate are sequentially arranged between the front of the back plate and the front panel of the face frame;

The PCB is fixed on the inner wall of the face frame side panel or the inner wall of the back plate side panel, and a light source is disposed on a side surface facing the light guide diffusion plate.

The light source is an LED lamp bead.

The periphery of the back plate is bent toward the front of the back plate to form a back plate side panel, the back plate side panel is surrounded around the light emitting module, and the face frame side panel is enclosed outside the back plate side panel.

The panel light provided by the present invention is made of an integrally formed metal sheet, that is, a sheet metal piece, into a face frame of the panel light. There is no need to connect and combine a plurality of profiles to form a frame. The package is fixed together, and the entire face frame can be integrated into one piece using automation technology, which is convenient for processing and manufacturing of various parts. When the integrated face frame and back plate are made of sheet metal, the structure of the entire molded panel light Simple and convenient for automated assembly, and the integrally formed face frame has good light leakage resistance, and will not cause cracking during transportation, and will not cause damage to the internal components of the panel light due to cracking, which will reduce the damage caused by cracking. The non-performing rate has the characteristics of convenient transportation and low cost.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor.

FIG. 1 shows a three-dimensional structure diagram of a panel light according to an embodiment of the present invention;

2 is a schematic diagram showing a three-dimensional explosion structure of a panel light according to an embodiment of the present invention;

3 shows a schematic diagram of a three-dimensional structure of a sheet metal part according to an embodiment of the present invention;

FIG. 4 shows a schematic diagram of the three-dimensional structure of a sheet metal piece that is once bent according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a three-dimensional structure of a sheet metal part bent twice according to an embodiment of the present invention; FIG.

FIG. 6 shows a partially enlarged view of a back plate according to an embodiment of the present invention.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The panel light according to the embodiment of the present invention includes a face frame and a light emitting module; the face frame is made of a metal sheet, and includes a face frame front panel, a face frame side panel, and a face frame connection plate; A card slot is formed between the side panel and the connection plate of the face frame, and the card slot is formed by the second bending of the metal sheet; the face frame is based on the card slot to package the light emitting module into a panel light, and the face frame is based on the face frame front panel and The front edge of the light-emitting module is in contact with each other. The surface frame is based on the surface frame side panel to encapsulate the periphery of the light-emitting module.

Specifically, FIG. 1 shows a schematic diagram of a three-dimensional structure of a panel light according to an embodiment of the present invention, and FIG. 2 shows a schematic diagram of a three-dimensional explosion structure of a panel light according to an embodiment of the present invention. An embodiment of the present invention provides a panel light. The panel light includes a face frame 1, a light emitting module 7, and a back plate 8. The light emitting module 7 is disposed between the face frame 1 and the back plate 8. The power cord 9 is routed from the back plate 8. Lead out. The embodiment of the present invention is described by taking a rectangular panel light as an example. Specifically, based on the design idea of the embodiment of the present invention, the panel light may also be designed into a shape such as a circle, a triangle, a pentagon, or a hexagon.

The face frame 1 according to the embodiment of the present invention is made of a metal sheet, and may be specifically made of a sheet metal piece. Here, a sheet metal piece is taken as an example for description. The face frame 1 includes a face frame front panel, a face frame side panel, The face frame connecting plate, the face frame front panel, the face frame side panel, and the face frame connecting plate are combined to form a card slot for packaging the back plate 8 and the light emitting module 7; the card slot direction is inward, and the light emitting module 7 and the back plate 8 The panel light is packaged in the card slot. In the specific implementation process, the back plate 8 and the light-emitting module 7 can form an integrated light-emitting device, and then the whole light-emitting device is packaged by the face frame 1 to form a panel light. The back plate 8 can also cooperate with the face frame 1 to package the light-emitting module 7 independently. Molded into panel lights. It should be noted that the thickness of the metal foil here is between 0.4mm and 0.65mm, and the thickness of the metal foil may be 0.4mm, or 0.45mm, or 0.50mm, or 0.55mm, or 0.6mm, or 0.65mm. and many more.

In the specific implementation process, the face frame is made of a hollow metal sheet in the middle. Here, the face frame front panel can be set as a rectangular frame structure, or a circular frame structure, or a triangular frame structure, or A pentagonal frame structure or a hexagonal frame structure.

Further, considering the need to strengthen the fixing effect of the surface frame connection plate and the light emitting module, it can be fastened by means of buckle fitting, screwing, glue bonding, etc., and considering the external installation of the panel light, it can be installed on the back of the light emitting module. Lifting ears and other parts. Based on the back plate 8 provided with the panel light in the embodiment of the present invention, the power cord 9 is led out from the back plate 8. In the embodiment of the present invention, the sheet metal processing of the back plate 8 can be used to relatively easily process components such as buckles and lifting eyes, and there are fewer steps when assembling panel lights, which is beneficial to improving production efficiency.

FIG. 3 shows a schematic diagram of the three-dimensional structure of a sheet metal piece according to an embodiment of the present invention. FIG. 4 shows a schematic diagram of the three-dimensional structure of a sheet metal piece that has been bent once in the embodiment of the present invention. Schematic diagram of the 3D structure of a bent sheet metal part.

Specifically, the face frame 1 according to the embodiment of the present invention is manufactured by bending a sheet metal piece 100 twice.

Specifically, the sheet metal part of the embodiment of the present invention includes a face frame front panel 101, a face frame side panel 102, and a face frame connection plate 103. The sheet metal piece 100 is a sheet metal plate hollowed out in the middle, and the face frame front panel 101 is arranged around the hollowed out position of the sheet metal piece 100 for pressing the light-emitting module 7 on the back plate 8; One bending is performed to form the face frame side panel 102; the face frame side panel 102 is bent twice to the inside of the sheet metal part 100 to form the face frame connection plate 103. Between the face frame front panel 101, the face frame side panel 102, and the face frame connection plate 103, a card slot 105 having a U-shaped cross section is formed, and the opening direction of the card slot 105 faces inward. The face frame front panel 101 and the face frame connection plate 103 are based on the connection of the face frame side panel 102, and the light module and the back plate are packaged in a card slot to form a panel light.

Specifically, on the sheet metal part 100 in a plate state, the sheet metal front panel 101 has a rectangular frame structure. Based on each side of the sheet metal front panel 101, a surface frame side panel 102 is extended outward; in order to make the surface of the surface frame in all directions The frame side panels 102 have the same height and tight fit. On the sheet metal part 100, the adjacent sides of the adjacent surface frame side panels 102 are at an angle of 90 ° and have the same length. When the sheet metal part 100 is folded around When the surface frame side panel 102 is formed by a single bending at a 90 ° angle, the height of the two adjacent surface frame side panels 102 is the same, so that the vertical sides of the two adjacent surface frame side panels 102 can contact each other. , The gap formed between each other is smaller, the coordination effect is more ideal.

Specifically, on the sheet metal part 100 in a plate state, the face frame side panels 102 in all directions extend outward from the face frame connection plate 103. Because the face frame connection plate 103 needs to be formed on the face frame side panel 102 and then formed by secondary bending toward the inside; if the size of the two face frame connection plates 103 is too large, the adjacent two face frame connection plates are formed. 103 During the second bending, an interference phenomenon will occur, and the interfering two surface frame connecting plates 103 will partially overlap together. In the specific implementation process, based on the size of the face frame side panel 102, the width of the face frame connection plate 103 can be subtracted from the two ends of the face frame connection plate 103 in the length direction, so that two adjacent face frames can be made. No interference occurs between the connecting plates 103, which reduces the thickness of the panel light.

Optionally, in order to ensure the limit reliability of the surface frame connection plate 103, the angle of the second bending is equal to or greater than 90 °, so that the surface frame connection plate 103 can be attached to the back of the light emitting module or the back of the back plate, and Fastened on the back of the light-emitting module or the back of the backplane to strengthen the connection strength between the surface frame and the light-emitting module or the backplane.

It should be noted that the size of the hollow in the middle of the sheet metal part 100, that is, the inside size of the face frame connection plate 103 depends on the area of the bottom surface of the light emitting module 7. Generally, the outline of the hollow in the middle of the sheet metal part 100 should be located in the light Within the outline of the bottom surface of the module 7, the surface frame connection plate 103 in any direction is in contact with the bottom surface of the light-emitting module 7, and the hollowed-out positions of the sheet metal part 100 are all used for the light-emitting module 7 to transmit light.

In addition, the height of the sheet metal side panel 102 depends on the thickness of the light emitting module 7. When the thickness of the light emitting module 7 is small, the height of the sheet metal side panel 102 can be correspondingly reduced to reduce the thickness of the panel light.

With reference to the schematic diagram of the panel light structure shown in FIG. 1 and FIG. 2, after the sheet metal part 100 is bent once, the face frame front panel 101 presses the light emitting module 7 on the front surface of the back plate 8, and the face frame side panel 102 surrounds the panel. The light emitting module 7 and the back plate 8 are all around; then the sheet metal piece 100 is subjected to secondary bending, and the sheet metal piece connecting plate 103 is buckled from the edge of the back plate 8 on the back of the back plate 8; The limiting function of the connecting plate 103 is that the face frame 1 and the back plate 8 are fixed to each other. The light-emitting module 7 is sandwiched between the face frame front panel 101 and the front surface of the back plate 8. The light is from the middle of the face frame 1, that is, the face frame. The area inside the front panel 101 is transparent.

FIG. 6 shows a partially enlarged view of a back plate according to an embodiment of the present invention. Optionally, in order to prevent the light of the light emitting module from leaking out from the gap between the back plate and the face frame and facilitate the positioning and installation of the light module, the back plate 8 around the embodiment of the present invention is bent toward the front of the back plate to form the back plate side. The panel 801, the back panel side panel 801 surrounds the light emitting module, the face frame side panel surrounds the outside of the back plate side panel 801, and the inner side of the back plate side panel 801 is used for positioning and installation of the light emitting module 7 and blocking the light emitting module 7, so as to avoid light transmission. Light leakage occurs. Accordingly, the face frame side panel 102 is fitted outside the back plate side panel 801.

Since the face frame of the embodiment of the present invention is made of sheet metal parts that are bent twice, and the light emitting module is mainly supported by the structure of the slot 105 on the face frame, in order to prevent the deformation of the slot 105 and the face frame connection plate 103 From the back plate, a buckle hole 104 can be provided on the face frame connecting plate 103, and a buckle 802 is provided on the back of the back plate at a position corresponding to the buckle hole 104; based on the buckle hole 104 and the buckle 802, With the cooperation, the back plate connecting plate is not easy to come off from the back plate, and the overall structure of the panel light is more firm. The buckle holes can correspond to the buckle one-to-one, and the buckle holes can be arranged in a line on the face frame connecting plate in an equal interval manner. In the specific implementation process, there are more than one buckle holes. Two buckle holes can be set to match the two buckle holes, or three buckle holes can be used to match the three buckle holes. It can also be arranged on the face frame connection plate at an equal interval. The three buckle holes can be arranged on the face frame connection plate to form a line, that is, the corresponding buckle position will also form a line on the back. The buckle is made of thin metal sheets, that is, sheet metal and other materials, or materials that are easy to bend. The buckle can adopt a strip structure, such as a strip of metal foil.

In the specific implementation process, the surface frame connecting plate 103 and the back plate 8 may be connected and fixed by welding. Specifically, after the second bending of the sheet metal part, the face frame connection plate 103 is buckled on the back of the back plate 8 and can be fixed by spot welding or continuous welding between the edge of the face frame connection plate 103 and the back plate 8. .

In a specific implementation process, the surface frame connecting plate 103 and the back plate 8 may be connected and fixed by using an adhesive method. Specifically, before the second bending operation of the sheet metal part, the glue can be dispensed at the contact position between the face frame connecting plate 103 and the back plate 8 and then the second bending operation of the sheet metal part can be performed; After the second bending operation of the gold piece, glue is formed at the contact position between the edge of the face frame connecting plate 103 and the back plate 8 to form a fixed.

In the specific implementation process, the fixed surface frame connection plate 103 and the back plate 8 may be connected by screwing. Based on the screw passing through the face frame connection plate 103 and the back plate 8 in order to form a screw connection, the direct position of the face frame and the back plate can be effectively fixed.

In the specific implementation process, in order to facilitate the installation of the flat lamp, a lifting lug based on sheet metal processing on the back of the back plate can be used to cooperate with parts such as hanging wires and hooks to realize the external installation of the flat lamp.

In the specific implementation process, in order to enhance the heat dissipation effect of the light emitting module, a heat dissipation hole may be opened on the back plate; since the heat dissipation hole is arranged on the back of the light emitting module, light will not penetrate through the heat dissipation hole.

Specifically, in order to reduce the thickness of the panel light, the light-emitting module in the embodiment of the present invention adopts a side-emitting light-emitting module. Specifically, the light emitting module according to the embodiment of the present invention includes compressed cotton 5, reflective paper 4, light guide plate 3, diffuser plate 2, and PCB 6. From the front of the back plate 8 to the front frame 101 of the frame, compression cotton 5, reflective paper 4, light guide plate 3, and diffuser plate 2 are arranged in this order; PCB6 is installed on the inner wall of the back plate side panel 801, facing the light guide plate 3 side A light source is provided; the light source here can be selected from LED lamp beads. Compared with the rear-projection type light-emitting module, the light-emitting source of the side-emitting type light-emitting module is arranged on the side, and the thickness of the light-emitting module can be greatly reduced, which is beneficial to reducing the overall thickness of the panel light. It can be known from the structure of the light-emitting module in the embodiment of the present invention that the components in the light-emitting module can be sequentially installed in a stacking manner, the operation is simple, and can be realized through automatic mechanical operations, which is beneficial to reducing the production cost of the panel light.

It should be noted that, in specific implementation, the light-emitting module may select various types of light-emitting light sources.

The face frame of the embodiment of the present invention is made by bending a sheet metal part twice. Compared with the profile formed by splicing, the front frame of the face frame is a whole without gaps, which prevents light leakage from the front frame of the face frame. Sheet metal parts are thin and have a large surface area, which is conducive to the heat dissipation of the internal light-emitting module; the front frame of the frame, the side panel of the frame, and the connection plate of the surface frame are respectively attached to the light-emitting module and the back plate, which has a compact structure and space utilization. greatly increase.

The back plate of the embodiment of the present invention is formed by bending the back plate side panel around. On the one hand, it can be used for the PCB installation of the side-emitting light-emitting module, and on the other hand, it can block the light emitted from the side of the light-emitting module to avoid light leakage. Lifting ears are processed on the back of the back plate through sheet metal processing, which can provide hanging points for installation.

The light source used in the embodiment of the present invention is a side-emitting light-emitting module. The internal compression cotton, reflective paper, light guide plate, and diffuser plate can be directly installed through stacking, which is beneficial to mechanization. The thickness of the module, thereby reducing the thickness of the panel light and making the panel light thinner.

The panel light provided by the embodiment of the present invention uses an integrally formed metal sheet, that is, a sheet metal piece, to make a face frame of the panel light, and does not need to connect and combine multiple profiles to form a frame. The light-emitting module is packaged and fixed together, and the entire face frame can be integrated into one piece using automation technology, which is convenient for processing and manufacturing of various parts. In the case where the integrally formed face frame and back plate are made of sheet metal, the entire panel light is formed. The structure is simple and convenient for automated assembly, and the integrally formed face frame has good light leakage resistance, and will not cause cracking during transportation, and will not cause damage to the internal components of the panel light due to cracking, reducing the phenomenon of cracking. The resulting defective rate is characterized by convenient transportation and low cost.

The panel lights provided by the embodiments of the present invention have been described in detail above. Specific examples are used herein to explain the principles and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core. At the same time, for a person of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and the scope of application. In summary, the content of this description should not be construed as a limitation on the present invention.

Claims

A panel light, characterized in that the panel light includes a face frame and a light emitting module;

The face frame is made of a metal sheet and includes a face frame front panel, a face frame side panel, and a face frame connection plate. A card slot is formed between the face frame front panel, the face frame side panel, and the face frame connection plate. The card slot is formed by bending the metal sheet through secondary bending;

The face frame encapsulates the light emitting module into a panel light based on the card slot, the face frame contacts the front edge of the light emitting module based on the face frame front panel, and the face frame encapsulates the light emission based on the face frame side panel. Around the module, the face frame forms a limit based on the face frame connection board contacting the back of the light emitting module.
The panel light according to claim 1, wherein a buckle hole is provided on a face frame connection plate of the panel lamp; and a position corresponding to the buckle hole on the back of the light-emitting module is provided with the buckle hole. A buckle adapted to a buckle hole; after the buckle passes through the buckle hole, it is bent and pressed on the face frame connecting plate.
The panel light according to claim 2, wherein the buckle holes correspond to the buckle one-to-one, and the buckle holes are arranged in a line on the face frame connecting plate at an equal interval. .
The panel light according to claim 2, wherein the buckle is a strip-shaped metal sheet.
The panel light according to claim 1, wherein the face frame connection plate and the back of the light emitting module are fixed by welding.
The panel light according to claim 1, wherein the surface frame is made of a hollow metal sheet.
The panel light according to claim 6, wherein the face frame front panel has a rectangular frame-like structure, or a circular frame-like structure, or a triangular frame-like structure, or a pentagonal frame-like structure, Or a hexagonal frame structure.
The panel light according to claim 6, wherein the hollowed-out contour of the middle part of the metal foil is located within the contour of the bottom surface of the light-emitting module, and the surface frame connection plate in any direction is in contact with the bottom surface of the light-emitting module The hollowed out positions in the middle of the metal foil are all used for light transmission of the light emitting module.
The panel light according to claim 1, wherein a lifting ear is provided on a back surface of the light emitting module.
The panel lamp according to claim 1, wherein each bending angle of the secondary bending is 90 °.
The panel light according to claim 1, wherein the metal sheet is a sheet metal part.
The panel light according to claim 1, wherein a thickness of the metal foil ranges from 0.4 mm to 0.65 mm.
The panel light according to any one of claims 1 to 12, wherein the light emitting module comprises a back plate, compressed cotton, reflective paper, a light guide plate, a diffusion plate, and a PCB; The compressed cotton, reflective paper, light guide plate, and diffuser plate are sequentially arranged between the front surface of the back plate and the front panel of the face frame; the PCB is fixed on the inner wall of the side frame side panel or the inner wall of the back plate side panel, A light emitting source is provided on a side surface facing the light guide diffusion plate.
The panel light according to claim 13, wherein the light source is an LED lamp bead.
The panel light according to claim 13, wherein the periphery of the back plate is bent toward the front of the back plate to form a back plate side panel, and the back plate side panel surrounds the periphery of the light emitting module, and the surface A frame side panel surrounds the outside of the back plate side panel.