CN107893973B - LED panel lamp, assembling method thereof and illumination method - Google Patents
LED panel lamp, assembling method thereof and illumination method Download PDFInfo
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- CN107893973B CN107893973B CN201711084482.3A CN201711084482A CN107893973B CN 107893973 B CN107893973 B CN 107893973B CN 201711084482 A CN201711084482 A CN 201711084482A CN 107893973 B CN107893973 B CN 107893973B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005286 illumination Methods 0.000 title claims description 7
- 238000009792 diffusion process Methods 0.000 claims abstract description 43
- 229920003023 plastic Polymers 0.000 claims abstract description 40
- 239000004033 plastic Substances 0.000 claims abstract description 40
- 230000007704 transition Effects 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000000071 blow moulding Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 238000013461 design Methods 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to an LED flat lamp, an assembling method and an illuminating method thereof, wherein a diffusion cover is formed by plastic suction molding or blow molding of a diffusion light guide material, the wall is thin and uniform, the light transmission effect is good, the light loss is less, a certain gap is reserved between the diffusion cover and the light emergent surface of a light guide plate, the light emergent by the light guide plate is uniformly dispersed, the diffusion cover can have a larger light emitting area so as to cover the right upper part of a frame section bar, and a light reflecting surface which is obliquely expanded from bottom to top from inside to outside is arranged to help to increase the brightness of the edge of the diffusion cover, so that the black edge is finally avoided, and the frame-free light emergent effect is achieved. The thickness and the processing of the light guide plate are not particularly required, and the manufacturing cost is low. The frame-free display device has the advantages of reasonable structure and convenience in manufacturing, can realize frame-free display to the greatest extent, avoids the problem of black edges in the prior art, and can realize frame-free splicing and frame-free display in the true sense.
Description
Technical Field
The invention relates to the field of lamps, in particular to an LED flat lamp, an assembling method thereof and an illumination method thereof.
Background
Most of the flat lamps on the market at present emit light from side, and compared with the bottom backlight panel lamp, the side light-emitting panel lamp has the advantages of thin thickness, uniform light emission, high brightness and the like, and generally consists of a frame, a light guide plate component and LED (light-emitting diode) lamp bars, wherein the frame of most of the side light-emitting panel lamps is exposed to the light-emitting surface, and the frame panel lamps are also present, but the frame is hidden from the appearance, and black edges exist when the lamp is lighted, so that no frame (no frame in the real sense) in the light effect cannot be realized:
Patent document CN204227148U discloses a frameless LED panel lamp comprising a back plate assembly and a panel assembly fixed by screws; the panel assembly comprises an aluminum frame, wherein two LED circuit boards are adhered to the inner side of the aluminum frame through heat conduction double faced adhesive tape, a light guide plate, a reflecting plate, pearl cotton and an aluminum plate are sequentially embedded in the aluminum frame from bottom to top, and a diffusion plate is adhered to the lower side of the aluminum frame and has the same outer diameter as the aluminum frame; the back plate assembly comprises a heat conducting plastic shell back plate and an LED driver embedded in the heat conducting plastic shell back plate. The structure is of a borderless design and can be used for free combination and seamless splicing, but the black edge problem still cannot be avoided when lighting.
Patent document with publication number CN204176371U discloses a frameless panel lamp, which comprises 4 panel frame strips, an aluminum plate, a diffusion plate, frame strip connectors, reflective paper, a light guide plate, an LED lamp strip and a PCB board, wherein the diffusion plate, the light guide plate, the reflective paper and the aluminum plate are sequentially stacked, the upper ends of the 4 panel frame strips are pressed against the aluminum plate, the lower ends of the 4 panel frame strips are combined with the diffusion plate in a sliding manner, and the 4 panel frame strips are installed and fixed at right angles through the frame strip connectors. In the structure, the diffusion plate is provided with the shielding groove suitable for being clamped with the frame strips, so that the assembly of the diffusion plate and the panel frame strips is completed, and the panel frame strips are all hidden in the side surface groove. The structure without frame is formed from the front, but only the effective light emitting area is enlarged, the black edge problem still cannot be avoided when the LED is lighted, and the structure needs a diffusion plate with large thickness, has large forming difficulty and large light loss, needs secondary processing grooving and has high manufacturing cost.
Patent document with publication number CN204176371U discloses a frame-free structured high-brightness LED flat lamp; the flat lamp comprises a light guide plate, wherein a clamping groove is formed in the light guide plate, an LED lamp strip is arranged in the clamping groove, and a reflecting sheet is arranged at the lower end of the light guide plate. The LED lamp strip is arranged in the clamping groove of the light guide plate, so that an external frame is omitted, and the LED lamp strip is directly arranged in the light guide plate; although this patent document states that this structure can realize that the flat lamp has no frame display, makes its light emitting area maximize, but is still darker because of light is few at the contralateral of LED lamp strip light-emitting direction, and this department still can't avoid black limit problem to this structure needs the very big light guide plate of thickness, and the shaping degree of difficulty is big, and light loss is great, and the draw-in groove of installation lamp strip is no matter adopts one shot forming or secondary operation fluting, manufacturing cost is all very high, in addition, because of no frame protection, the light guide plate also easily receives pollution and damage.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an LED flat lamp, an assembling method and an illumination method thereof, wherein the LED flat lamp has reasonable structure and convenient manufacture, can realize frameless display to the greatest extent, avoids the black edge problem in the prior art, and can realize frameless splicing and frameless display (frameless in light emitting effect) in the true sense.
In order to achieve the above object, the present invention adopts the following technical scheme:
The utility model provides a dull and stereotyped lamp of LED, includes frame, LED lamp strip (4), light guide plate (5), reflection stratum (6) and backplate (8), the frame is formed through angle connecting piece (9) concatenation by four frame section bars (3), light guide plate (5), reflection stratum (6) and backplate (8) are held by four second frame section bars (3) respectively all around, two LED lamp strips (4) set up respectively in the light trough A (33) of two frame section bars (3) that are parallel to each other, a serial communication port, still include a blowing or plastic uptake fashioned diffuser (1), the upper portion of frame section bar (3) has an lateral wall portion A (31) and an inside wall portion A (35), is formed with the ascending draw-in groove A (32) of an opening between lateral wall portion A (31) and inside wall portion A (35), and the edge down inwards extends through the arc transition and forms joint portion, and this joint portion and draw-in groove A (32) joint cooperation are fixed in the light trough A (3) lamp trough A (33) lamp trough A (3) lamp trough A (33) lamp-house, and the lower extreme that the lower side wall portion A (3) of this side wall portion A (3) extends to the lower extreme of the arc from the lower side of the light guide plate A to the lower extreme of the slope of this reflecting surface (5A.
In the invention, the diffusion cover is formed by plastic suction molding or blow molding by using a diffusion light guide material, the wall is thin and the material is uniform, the light transmission effect is good, the light loss is less, a certain gap is reserved between the diffusion cover and the light emergent surface of the light guide plate, the light emergent by the light guide plate is uniformly dispersed, the diffusion cover can have a larger light emitting area so as to cover the part right above the frame section bar, and the light reflecting surface which is obliquely expanded from bottom to top from inside to outside is arranged to help to increase the brightness of the edge of the diffusion cover, so that the black edge is finally avoided, and the frame-free light emergent effect is achieved. The thickness and the processing of the light guide plate are not particularly required, and the manufacturing cost is low.
Preferably, the frame section bar (3) is provided with a supporting platform part (36), the lamp groove A (33) is communicated with a gap between the lower end of the inner side wall part A (35) and the supporting platform part (36), and the edge of the light guide plate (5), the reflecting layer (6), the EVA cotton (7) and the back plate (8) are arranged in the gap in an inserted mode.
Preferably, the distance between the plane part of the diffusion cover (1) and the light guide plate (5) is10 to 30 mm. Thus, the LED flat lamp has the best balance between the light scattering effect and the light loss.
Preferably, the light reflecting surface a and the light reflecting surface B are formed by continuously transiting a plurality of flat surfaces or curved surfaces.
Preferably, the wall thickness of the diffusion cover (1) is 1 to 5 mm. The diffusion cover has the best light transmittance, light diffusion effect and minimum light loss.
Preferably, the frame is formed by splicing four frame section bars (3) through four plastic corners (2) and four corner connecting pieces (9), each plastic corner (2) is provided with two outer side wall parts B (21) which are perpendicular to each other, a connecting platform part (22) is arranged in the middle of the inner sides of the two outer side wall parts B (21), an inner side wall part B (25) is respectively arranged on the upper sides of the inner side wall parts B (21), the two inner side wall parts B (25) are perpendicular to each other but are not connected, a clamping groove B (24) with an upward opening and a lamp groove B (23) embedded with an LED lamp bar (4) are arranged between the inner side wall part B (25) and the outer side wall part B (21), the clamping groove B (24) is communicated with the clamping groove A (32) and is jointly matched and fixed with the clamping part of the diffusion cover (1), the inner side surface of the inner side wall part B (25) is a surface B which is inclined from bottom to top to bottom to top, the upper side of the light reflection surface B extends to the arc-shaped light guide plate (5) of the light reflection surface. Like this, the corresponding structural design of plastics angle and frame section bar not only convenient equipment, can avoid the corner darkness of LED flat lamp moreover.
Preferably, a limiting protrusion (26) for limiting the LED light bar (4) and/or the light guide plate (5) is arranged near the light groove B (23).
Preferably, the connecting platform part (22) is lower than an inserting hole (34) for inserting the corner connecting piece (9) on the frame profile strip (3), a positioning column (27) or a positioning hole is arranged on the connecting platform part (22), and limit steps are arranged on two outer side wall parts B (21) of the plastic corner (2); when the plastic corner (2) and the corner connecting piece (9) are adopted for splicing the frame profile strips (3), two ends of the corner connecting piece (9) are respectively inserted into insertion holes (34) of two frame profile strips (3) to be spliced, the end faces of the two frame profile strips (3) are respectively in butt joint with two end faces of the plastic corner (2) and are limited through limiting steps, a corner connecting cover plate (10) is arranged below the frame profile strips (3) and the plastic corner (2), the corner connecting cover plate (10) is oppositely positioned with the plastic corner (2) through a positioning column (27) or a positioning hole, and the frame profile strips (3), the plastic corner (2) and the corner connecting cover plate (10) are fixedly connected into a whole through a fastener (11). Therefore, the structure is simple and reasonable, the assembly is convenient, and the manufacturing cost is low.
The assembling method of the LED flat lamp is characterized in that four frame section bars (3) are respectively clamped around the light guide plate (5), the reflecting layer (6) and the back plate (8), LED lamp bars (4) are inserted into lamp grooves A (33) of two opposite frame section bars (3), the four frame section bars (3) are spliced and fixed through four plastic corners (2) and four corner connecting pieces (9) to form a frame, and the LED lamp bars (4) are connected with a power supply through connecting wires (12).
A method of illuminating an LED flat panel lamp comprising a plurality of LED flat panel lamps as described above, the LED flat panel lamps being pieced together along their flat surfaces to form an illumination plane.
According to the invention, the diffusion cover is formed by plastic suction molding or blow molding of the diffusion light guide material, the wall is thin and the material is uniform, the light transmission effect is good, the light loss is less, a certain gap is reserved between the diffusion cover and the light emergent surface of the light guide plate, so that the light emergent from the light guide plate is uniformly dispersed, the diffusion cover can have a larger light emitting area so as to cover the part right above the frame section bar, and the light reflecting surface which is obliquely expanded from bottom to top from inside to outside is arranged so as to help to increase the brightness of the edge of the diffusion cover, thereby finally avoiding black edges and achieving the frameless effect of light emergent. The thickness and the processing of the light guide plate are not particularly required, and the manufacturing cost is low. The frame-free display device has the advantages of reasonable structure and convenient manufacture, can realize frame-free display to the greatest extent, avoid the black edge problem in the prior art, and can realize frame-free splicing and frame-free display (frame-free in light emitting effect) in the true sense.
Drawings
Fig. 1 is a schematic diagram of an explosive structure of the present invention.
Fig. 2 is a schematic structural view of a frame profile.
Fig. 3 is a schematic cross-sectional view of a frame profile.
Fig. 4 is a schematic view of the structure of a plastic corner (view angle one).
Fig. 5 is a schematic view of the structure of the plastic corner (view two).
Fig. 6 is an exploded view of a connection structure of a corner connector and a plastic corner or the like.
Fig. 7 is a partial cross-sectional view of an LED flat panel lamp of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The LED flat lamp shown in fig. 1 and 7 comprises a frame, LED light bars 4, a light guide plate 5, a reflective layer 6 and a back plate 8, wherein the frame is formed by splicing four frame section bars 3 through corner connectors 9, the peripheries of the light guide plate 5, the reflective layer 6 and the back plate 8 are respectively clamped by four second frame section bars 3, and the two LED light bars 4 are respectively arranged in lamp grooves a33 of the two parallel frame section bars 3, and the LED flat lamp is characterized by further comprising a blow-molded or plastic-molded diffusion cover 1, as shown in fig. 2 and 3, the upper part of the frame section bars 3 is provided with an outer side wall part a31 and an inner side wall part a35, a clamping groove a32 with an upward opening is formed between the outer side wall part a31 and the inner side wall part a35, the peripheral edge of the diffusion cover 1 downwards extends inwards through arc transition to form a clamping part, the clamping part is fixedly clamped with the clamping groove a32, the inner side surface of the inner side wall part a35 of the frame section bar 3 is a light reflecting surface A which extends from bottom to the upper end of the light guide plate a to the lower end of the arc transition light reflecting plate a, and the light reflecting plate extends to the lower end of the reflecting surface a 5. In the invention, the diffusion cover is formed by plastic suction molding or blow molding by using a diffusion light guide material, the wall is thin and the material is uniform, the light transmission effect is good, the light loss is less, a certain gap is reserved between the diffusion cover and the light emergent surface of the light guide plate, the light emergent by the light guide plate is uniformly dispersed, the diffusion cover can have a larger light emitting area so as to cover the part right above the frame section bar, and the light reflecting surface which is obliquely expanded from bottom to top from inside to outside is arranged to help to increase the brightness of the edge of the diffusion cover, so that the black edge is finally avoided, and the frame-free light emergent effect is achieved. The thickness and the processing of the light guide plate are not particularly required, and the manufacturing cost is low.
In this embodiment, the frame section bar 3 is provided with a supporting platform 36, and the lamp slot a33 is directly connected to a gap between the lower end of the inner sidewall a35 and the supporting platform 36, and edges of the light guide plate 5, the reflective layer 6, the EVA cotton 7 and the back plate 8 are inserted into the gap. The distance between the plane part of the diffusion cover 1 and the light guide plate 5 is 10 to 30 mm. Thus, the LED flat lamp has the best balance between the light scattering effect and the light loss. The light reflecting surface A and the light reflecting surface B are formed by continuously transiting a plurality of planes or curved surfaces. The wall thickness of the diffusion cover 1 is 1 to 5 mm. The diffusion cover has the best light transmittance, light diffusion effect and minimum light loss. The frame is formed by splicing four frame section bars 3 through four plastic corners 2 and four corner connecting pieces 9, as shown in fig. 4 and 5, the plastic corners 2 are provided with two outer side wall parts B21 which are perpendicular to each other, a connecting platform part 22 is arranged in the middle of the inner sides of the two outer side wall parts B21, an inner side wall part B25 is respectively arranged on the upper parts of the inner sides of the two outer side wall parts B21, the two inner side wall parts B25 are perpendicular to each other but are not connected, a clamping groove B24 with an upward opening and a lamp groove B23 embedded with the LED lamp bar 4 are arranged between the inner side wall parts B25 and the outer side wall parts B21, the clamping groove B24 is communicated with the clamping groove A32 and is matched and fixed with the clamping part of the diffusion cover 1 together, the lamp groove B23 is communicated with the lamp groove A33 and is provided with the LED lamp bar 4, the inner side surface of the inner side wall part B25 is a reflecting surface B which is inclined from bottom to top to outside, the upper end of the reflecting surface B extends to the lower part of the arc transition position of the diffusion cover 1, and the lower end of the reflecting surface B extends to the light emitting surface 5 of the light guide plate. Like this, the corresponding structural design of plastics angle and frame section bar not only convenient equipment, can avoid the corner darkness of LED flat lamp moreover. And a limiting protrusion 26 for limiting the LED light bar 4 and/or the light guide plate 5 is arranged near the light groove B23. The connecting platform part 22 is lower than the jack 34 for inserting the corner connecting piece 9 on the frame section bar 3, the connecting platform part 22 is provided with a positioning column 27 or a positioning hole, and two outer side wall parts B21 of the plastic corner 2 are provided with limiting steps; as shown in fig. 6, when the plastic corner 2 and the corner connector 9 are adopted to splice the frame section bars 3, two ends of the corner connector 9 are respectively inserted into insertion holes 34 of two frame section bars 3 to be spliced, the end faces of the two frame section bars 3 are respectively butted with two end faces of the plastic corner 2 and are limited by a limiting step, a corner connecting cover plate 10 is arranged below the frame section bars 3 and the plastic corner 2, the corner connecting cover plate 10 is oppositely positioned with the plastic corner 2 through a positioning column 27 and a positioning hole 101, and the frame section bars 3, the plastic corner 2 and the corner connecting cover plate 10 are fixedly connected into a whole through a fastener 11. Therefore, the structure is simple and reasonable, the assembly is convenient, and the manufacturing cost is low.
According to the assembling method of the LED flat lamp, the four frame section bars 3 are respectively clamped around the light guide plate 5, the reflecting layer 6 and the back plate 8, the LED lamp bars 4 are inserted into the lamp grooves A33 of the two opposite frame section bars 3, the four frame section bars 3 are spliced and fixed through the four plastic corners 2 and the four corner connecting pieces 9 to form a frame, and the LED lamp bars 4 are connected with a power supply through connecting wires 12.
A method of illuminating an LED flat panel lamp comprising a plurality of LED flat panel lamps as described above, the LED flat panel lamps being tiled along their flat faces to form an illumination plane.
It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the invention are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the principles of the present invention should be considered to fall within the scope of the present invention.
Claims (6)
1. The utility model provides a dull and stereotyped lamp of LED, includes frame, LED lamp strip (4), light guide plate (5), reflection stratum (6) and backplate (8), the frame is formed by four frame section bars (3) through angle connecting piece (9) concatenation, light guide plate (5), reflection stratum (6) and backplate (8) are held by four frame section bars (3) respectively all around, two LED lamp strips (4) set up respectively in the light trough A (33) of two frame section bars (3) that are parallel to each other, characterized in that still includes a blowing or plastic uptake fashioned diffuser (1), the upper portion of frame section bar (3) has an lateral wall portion A (31) and an inside wall portion A (35), be formed with a draw-in groove A (32) that open side up between lateral wall portion A (31) and inside wall portion A (35), the edge down inwards extends through the arc transition and forms joint portion, this joint portion and draw-in groove A (32) are fixed in the lamp trough A (33) joint cooperation respectively, the upper end of the light guide plate A's that the inside wall portion A (3) is the inclined from the lower extreme of the light guide plate A to the lower extreme of the reflecting surface (5) of reflecting surface;
The frame profile strip (3) is provided with a supporting platform part (36), the lamp groove A (33) is communicated with a gap between the lower end of the inner side wall part A (35) and the supporting platform part (36), and the edge of the light guide plate (5), the reflecting layer (6), the EVA cotton (7) and the back plate (8) are arranged in the gap in an inserted mode;
the distance between the plane part of the diffusion cover (1) and the light guide plate (5) is 10 to 30 mm;
The wall thickness of the diffusion cover (1) is 1 to 5 mm;
The frame is formed by splicing four frame section bars (3) through four plastic corners (2) and four corner connecting pieces (9), each plastic corner (2) is provided with two outer side wall parts B (21) which are perpendicular to each other, a connecting platform part (22) is arranged in the middle of the inner sides of the two outer side wall parts B (21), an inner side wall part B (25) is respectively arranged on the upper sides of the inner sides of the two outer side wall parts B (21), the two inner side wall parts B (25) are perpendicular to each other but are not connected, a clamping groove B (24) with an upward opening and a lamp groove B (23) embedded with an LED lamp bar (4) are arranged between the inner side wall part B (25) and the outer side wall part B (21), the clamping groove B (24) is communicated with the clamping groove A (32) and is jointly matched and fixed with the clamping part of the diffusion cover (1), the inner side surface of the inner side wall part B (25) is a light reflecting surface B which is inclined from bottom to top to bottom, and the light guiding surface B extends to the arc-shaped light guiding surface (5) of the light reflecting surface B extends to the lower end of the light guiding surface (1).
2. The LED flat panel lamp according to claim 1, wherein a limiting protrusion (26) for limiting the LED light bar (4) and/or the light guide plate (5) is provided near the light groove B (23).
3. The LED flat panel lamp according to claim 1, wherein the light reflecting surface a and the light reflecting surface B are formed by continuously transiting a plurality of flat surfaces or curved surfaces.
4. The LED flat lamp according to claim 1, wherein the connecting platform part (22) is lower than an inserting hole (34) which is arranged on the frame profile strip (3) and is used for inserting the corner connecting piece (9), a positioning column (27) or a positioning hole is arranged on the connecting platform part (22), and limit steps are arranged on two outer side wall parts B (21) of the plastic corner (2); when the plastic corner (2) and the corner connecting piece (9) are adopted for splicing the frame profile strips (3), two ends of the corner connecting piece (9) are respectively inserted into insertion holes (34) of two frame profile strips (3) to be spliced, the end faces of the two frame profile strips (3) are respectively in butt joint with two end faces of the plastic corner (2) and are limited through limiting steps, a corner connecting cover plate (10) is arranged below the frame profile strips (3) and the plastic corner (2), the corner connecting cover plate (10) is oppositely positioned with the plastic corner (2) through a positioning column (27) or a positioning hole, and the frame profile strips (3), the plastic corner (2) and the corner connecting cover plate (10) are fixedly connected into a whole through a fastener (11).
5. The method for assembling the LED flat lamp as claimed in claim 4, wherein four frame section bars (3) are respectively clamped around the light guide plate (5), the reflecting layer (6) and the back plate (8), the LED lamp bars (4) are inserted into the lamp grooves A (33) of the two opposite frame section bars (3), the four frame section bars (3) are spliced and fixed through four plastic corners (2) and four corner connecting pieces (9) to form a frame, and the LED lamp bars (4) are connected with a power supply through connecting wires (12).
6. A method of illuminating an LED flat panel lamp comprising a plurality of LED flat panel lamps as claimed in any one of claims 1 to 4, which LED flat panel lamps extend along their flat panel faces in a pieced together manner to form an illumination plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084482.3A CN107893973B (en) | 2017-11-07 | 2017-11-07 | LED panel lamp, assembling method thereof and illumination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084482.3A CN107893973B (en) | 2017-11-07 | 2017-11-07 | LED panel lamp, assembling method thereof and illumination method |
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| Publication Number | Publication Date |
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| CN107893973A CN107893973A (en) | 2018-04-10 |
| CN107893973B true CN107893973B (en) | 2024-05-24 |
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| CN201711084482.3A Active CN107893973B (en) | 2017-11-07 | 2017-11-07 | LED panel lamp, assembling method thereof and illumination method |
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|---|---|---|---|---|
| CN109307201A (en) * | 2018-07-25 | 2019-02-05 | 江门市乐普照明科技有限公司 | A kind of polygon lamp being easily installed combination |
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| CN107893973A (en) | 2018-04-10 |
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