EP3951258B1 - Lampe de panneau sans cadre - Google Patents

Lampe de panneau sans cadre Download PDF

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Publication number
EP3951258B1
EP3951258B1 EP21189073.6A EP21189073A EP3951258B1 EP 3951258 B1 EP3951258 B1 EP 3951258B1 EP 21189073 A EP21189073 A EP 21189073A EP 3951258 B1 EP3951258 B1 EP 3951258B1
Authority
EP
European Patent Office
Prior art keywords
plate
light
convex ring
panel lamp
horizontal portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21189073.6A
Other languages
German (de)
English (en)
Other versions
EP3951258A1 (fr
Inventor
Ruixiang LIN
Yunbiao WU
Chuanbao Ye
Lei Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leedarson Lighting Co Ltd
Original Assignee
Leedarson Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leedarson Lighting Co Ltd filed Critical Leedarson Lighting Co Ltd
Publication of EP3951258A1 publication Critical patent/EP3951258A1/fr
Application granted granted Critical
Publication of EP3951258B1 publication Critical patent/EP3951258B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/009—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being inside the housing of the lighting device
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • 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]

Definitions

  • the present application relates to the technical field of lamp, and more particularly to a frameless panel lamp.
  • the existing panel lamp generally includes a chassis, a light source assembly, a driving assembly, a light-transmitting plate, and an aluminum frame.
  • the installation method of the aluminum frame, the light-transmitting plate and the chassis is shown in FIG. 1 .
  • the chassis a and the aluminum frame b are fixedly connected through screws c, and the chassis a abuts the light-transmitting plate d in the aluminum frame b.
  • the above installation method increases the installation cost on one hand, and on the other hand, the aluminum frame b will form a circle of light-shielding ring at the light-emitting opening of the chassis a.
  • the light-shielding ring makes the actual light-emitting area on the chassis a smaller than that of the light-emitting opening on the chassis a, and on the other hand limits the light-emitting angle of the chassis a, resulting in a relatively poor light-emitting effect and light-emitting angle of the panel lamp.
  • a Chinese patent application CN205640732U discloses a dull and stereotyped lamp and lighting device, the dull and stereotyped lamp includes backplate, light source and diffuser plate, wherein the backplate includes the bottom plate and extends the side frame that forms to one side of bottom plate from the periphery of bottom plate that bottom plate and side frame enclose jointly and close a formation installation cavity, the light source holding is in the installation cavity and be fixed in the internal surface of bottom plate, the one end fixed bonding of keeping away from the bottom plate of diffuser plate and side frame to the closing cap installation cavity.
  • a Chinese patent application CN212961418U discloses a diffuser plate fixing structure and a lamp panel lamp, which belong to the technical field of lighting equipment.
  • a Chinese patent application CN206555838U discloses an integrated projection lamp, comprising a light source, a casing and a light-transmitting panel, the light source is fixed in the casing, the light source is sleeved with a reflector, and the edge of the open end of the casing is provided with a first ring groove for receiving and installing the light-transmitting panel.
  • a Chinese patent application CN207268381U discloses a frame of a panel light with anti-overflow glue, and a groove for the glue against overflow is provided on the outer side of the glue-filling position of the frame of the panel light.
  • An object of the embodiment of the present application is to provide a frameless panel lamp, which aims to solve the technical problem of high cost, poor light-emitting effect and poor light-emitting angle in the installation method of the light-transmitting plate using the aluminum frame in the prior art.
  • a frameless panel lamp which includes: a chassis, a light source assembly, a driving assembly, and a light-transmitting plate;
  • the light source assembly is disposed inside the chassis,
  • the chassis includes a base plate and side plates surrounding edges of the base plate, and each of the side plates is provided with a mounting portion bending outward away from the edges of the base plate;
  • the mounting portion includes a horizontal portion and a bending portion bending toward a light-emitting direction, and the horizontal portion is provided with a first convex ring toward the light-emitting direction;
  • an adhesive is disposed between the first convex ring and the bending portion, and the light-transmitting plate is bonded to the horizontal portion through the adhesive and is attached to a top portion of the first convex ring;
  • the bending portion comprises a first plate and a second plate, an end of the first plate is connected to the horizontal portion, and the other end of the first plate is connected to
  • the horizontal portion is provided with a second convex ring toward the light-emitting direction, and the second convex ring being located between the first convex ring and the bending portion; a protruding height of the second convex ring relative to the horizontal portion is less than a protruding height of the first convex ring relative to the horizontal portion; a first groove configured for receiving the adhesive is formed between the first convex ring and the second convex ring, and a second groove configured for receiving the adhesive overflowing from the first groove is formed between the second convex ring and the bending portion.
  • first plate and the second plate are perpendicular to each other, the second plate is parallel to the horizontal portion, and the light-transmitting plate overlaps on an inner surface of the second plate; or the first plate and the second plate are parallel, and the light-transmitting board overlaps on an end surface of the second plate.
  • the base plate is a rectangular plate, four side plates are provided, and two opposite side plates are respectively provided with the bending portion.
  • the base plate is a rectangular plate, four side plates are provided, and three of the side plates are respectively provided with the bending portion.
  • a top portion of the first convex ring is a flat surface.
  • the light-transmitting plate is a diffuser plate or a prismatic plate.
  • the adhesive is transparent glue or milky white glue, and the adhesive is in a paste.
  • the driving assembly is disposed at an outer surface of the chassis, and the driving assembly comprises a drive board, an insulating sheet and a protective cover, the insulating sheet covers the drive board, and the protective cover is detachably connected to the chassis and covers the drive board.
  • the beneficial effect of the frameless panel lamp provided by the present application is that by providing a mounting portion bent outward on the side plates, the light-transmitting plate is fixed on the mounting portion through bonding, and the aluminum frame can be omitted at this time, which saves cost and does not affect the light-emitting effect; at the same time, the first convex ring provided on the horizontal portion can be used to prevent the adhesive from overflowing to the light-emitting surface of the light-transmitting plate, ensuring the light-emitting effect of the light transmitting plate, and due that the aluminum frame is omitted, the light-emitting surface of the chassis can coincide with the light-emitting surface of the light-transmitting plate, thereby effectively ensuring the light-emitting effect and light-emitting angle of the panel lamp.
  • first and second are only used in describe purposes, and should not be considered as indicating or implying any relative importance, or impliedly indicating the number of indicated technical features.
  • technical feature(s) restricted by “the first” or “the second” can explicitly or impliedly comprise one or more such technical feature(s).
  • a plurality of means two or more, unless there is additional explicit and specific limitation.
  • FIGS. 2 to 4 a frameless panel lamp provided by an embodiment of the present application will now be described.
  • the frameless panel lamp includes the chassis 1, the light source assembly 2, the driving assembly 3, and the light-transmitting plate 4.
  • the light source assembly 2 is disposed inside the chassis 1, the chassis 1 includes the base plate 11 and the side plates 12 surrounding the edges of base plate 11, and a cavity is enclosed between the side plates 12 and the base plate 11, the light source assembly 2 specifically disposes on the inner surface of the base plate 11, the side plates 12 are formed a trumpet shape, and the end of the side plates 12 away from the base plate 11 forms a light-emitting opening.
  • the light-emitting opening is the larger end of the opening of the side plates 12, which is used to ensure the light-emitting angle of the panel lamp is large enough, and the light source assembly 2 emits light toward the light-emitting opening.
  • the edges of the side plates 12 away from the base plate 11 is bent outward to form the mounting portion 13, and the mounting portion 13 is bent in a direction away from the light-emitting opening to ensure the effective light-emitting area of the light-emitting opening.
  • the mounting portion 13 includes the horizontal portion 131 and the bending portion 132 bent toward the light-emitting direction, the horizontal portion 131 and the base plate 11 are parallel to each other, and the horizontal portion 131 is provided with the first convex ring 1311 toward the light-emitting direction, and an adhesive (not shown in the FIGs) is provided between the first convex ring 1311 and the bending portion 132, the light-transmitting plate 4 is bonded to the horizontal portion 131 through the adhesive and is connected to the top portion of the first convex ring 1311, and the light-transmitting plate 4 is matched with the top portion of the first convex ring 1311 o prevent the adhesive from overflowing to the light-transmitting plate 4 at the light-emitting opening, thereby ensuring the light-emitting effect the light-transmitting plate 4.
  • the light-transmitting plate 4 is fixedly connected to the chassis 1 by bonding, so that the aluminum frame and screws can
  • the frameless panel lamp fixes the light-transmitting plate 4 on the mounting portion 13 by bonding, and the aluminum frame can be omitted, which saves costs; at the same time, the first convex ring 1311 disposed on the horizontal portion 131 of the mounting portion 13 can be used to prevent the adhesive from overflowing to the light-transmitting plate 4 to ensure the light-emitting effect the light-transmitting plate 4, and due that the aluminum frame is omitted, the light-emitting surface of the chassis 1 can be coincided with the light-emitting surface of the light-transmitting plate 4, thereby effectively ensuring the light-emitting effect and the light-emitting angle of the lamp panel lamp.
  • a second convex ring 1312 is provided on the horizontal portion 131 toward the light-emitting direction, the second convex ring 1312 is located between the first convex ring 1311 and the bending portion 132, and the protruding height of the second convex ring 1312 relative to the horizontal portion 131 is less than the protruding height of the first convex ring 1311 relative to the horizontal portion 131.
  • the first groove 1313 configured for receiving the adhesive is formed between the first convex ring 1311 and the second convex ring 1312
  • the second groove 1314 configured for receiving the adhesive overflowing from the first groove 1313 is formed between the second convex ring 1312 and the bending portion 132.
  • the first groove 1313 is used to receive the adhesive and guide the adhesive, so that the adhesive fills the first groove 1313 and is bonded to the light-transmitting plate 4, the protruding height of the second convex ring 1312 relative to the horizontal portion 131 is less than the protruding height of the first convex ring 1311 relative to the horizontal portion 131, such that when light-transmitting plate 4 and the top of the first convex ring 1311 are attached, the first groove 1313 and the second groove 1314 are communicated to each other, and the excess adhesive in the first groove 1313 will overflow into the second groove 1314, which can effectively prevent the adhesive from overflowing to the light-emitting surface of the light-transmitting plate 4.
  • a third convex ring, a fourth convex ring, or a fifth convex ring may be provided on the horizontal portion 131, as long as the height of the first convex ring 1311 on the horizontal portion 131 is the highest.
  • the adhesive is preferably in a paste, such as "toothpaste state", so that when filling the adhesive to the first groove 1313, the height of the adhesive is slightly higher than the height of the first convex ring 1311, so that the light-transmitting plate 4 contact with adhesive first during mounting, and then attached to the top portion of the first convex ring 1311, so that adhesive and light-transmitting plate 4 can be effectively bonded.
  • a paste such as "toothpaste state
  • the light-transmitting plate 4 is first attached to the top portion of the first convex ring 1311, and then fills the adhesive to the first groove 1313, since the first groove 1313 is an annular groove, when filling the adhesive to the first groove 1313, the adhesive gradually fills the first groove 1313 and adheres to the light-transmitting plate 4.
  • the adhesive is continued to be filled into the first groove 1313, due to the blocking effect of the first convex ring 1311, the excess adhesive will overflow to the second groove 1314 and being collected inside the second groove 1314 to prevent adhesive overflowing and ensure the light-emitting effect and appearance of the panel lamp.
  • the bending portion 132 includes the first plate 1321 and the second plate 1322, an end of the first plate 1321 is connected to the horizontal portion 131, and the other end of the first plate 1321 is connected to an end of the second plate 1322, an angle is formed between the first plate 1321 and the second plate 1322, and a gap is formed between the second plate 1322 and the horizontal portion 131, and the edge of the light-transmitting plate 4 is inserted into the gap and overlaps the second plate 1322.
  • the arrangement of the second plate 1322 is used to prevent the light-transmitting plate 4 from falling due to adhesive aging, and to ensure the safety of the panel lamp.
  • the bending portion 132 is a bent plate perpendicular to the horizontal portion 131, and the side surface of the light-transmitting plate 4 is attached to the inner surface of the bending portion 132.
  • the bending portion 132 is an L-shaped plate, the first plate 1321 and the second plate 1322 are perpendicular to each other, the second plate 1322 is parallel to the horizontal portion 131, and the light-transmitting plate 4 overlaps on the inner surface of the second plate 1322.
  • the bending portion 132 is a U-shaped plate, the first plate 1321 and the second plate 1322 are parallel to each other, the first plate 1321 and the second plate 1322 are attached or there is a gap between the two, the light-transmitting plate 4 overlaps the end surface of the second plate 1322.
  • the base plate 11 is a rectangular plate, and four side plates 12 are provided. Among them, two opposite side plates 12 are respectively provided with the bending portion 132. During mounting, the light-transmitting plate 4 is inserted into the gap between the second plate 1322 and the horizontal portion 131, and the light-transmitting plate 4 is overlapped on the second plate 1322, and then adhesive is filled into the first groove 1313. In other embodiments, three of the four side plates 12 are respectively provided with the bending portion 132, which further ensures the firmness of the light-transmitting plate 4 installed on the chassis 1.
  • the top portion of the first convex ring 1311 is a flat surface, and the flat surface is used to increase the contact area between the first convex ring 1311 and the light-transmitting plate 4, thereby increasing the anti-overflow capacity between the first convex ring 1311 and the light transmitting plate 4 to ensure that the adhesive will not overflow to the light-emitting surface of the light-transmitting plate 4.
  • the light-transmitting plate 4 is a prism plate, that is, the light-transmitting plate 4 has a pattern on the light-emitting surface, and the pattern is used to improve the light-emitting effect of the light-transmitting plate 4.
  • the light-transmitting plate 4 is a diffuser, which can increase the light-transmitting angle.
  • the light-transmitting plate 4 plastic plate and the light-transmitting plate 4 is milky white.
  • the adhesive is transparent glue or milky white glue, which is similar to the color of light-transmitting plate 4, so as to ensure the aesthetics of the appearance of the panel lamp.
  • the light source assembly 2 includes a plurality of LED light bars arranged at intervals, and the plurality of LED light bars are electrically connected to the driving assembly 3 through an adapter plate or a wire.
  • a plurality of mounting grooves are arranged at intervals on the base plate 11, and one LED light bar is bonded or fixed by screws in each mounting groove, and the mounting grooves are arranged at equal intervals, which is used to ensure the uniformity of light-emitting of the p panel lamp.
  • the light source assembly 2 includes a light source circuit board and a plurality of LED lamp beads arranged on the light source circuit board.
  • the driving assembly 3 is provided on the outer surface of the chassis 1, the base plate 11 is provided with through holes (not shown in the figure), the through holes are used for guiding conductive wires, thereby realizing electrical connection between driving assembly 3 and light source assembly 2.
  • the driving assembly 3 includes the drive board 31, the insulating sheet 32, and the protective cover 33.
  • the insulating sheet 32 covers the drive board 31.
  • the protective cover 33 is detachably connected to the chassis 1 and covers the drive board 31.
  • the driving assembly 3 is arranged on the outer surface of the horizontal portion 131.
  • the purpose of this arrangement is to disperse the two heat sources of the driving assembly 3 and the light source assembly 2, thereby improving the heat dissipation effect of the panel lamp and effectively avoiding the influence of heat concentration on the light source assembly 2.
  • the chassis 1 is made of aluminum or aluminum alloy by die-casting, the insulating sheet 32 is a plastic sheet, and the insulating sheet 32 is used to insulate and isolate the drive board 31 and the chassis 1 to ensure that the drive board 31 can work normally.
  • the drive board 31 is a conventional driving structure of the panel lamp, which is basically a module component in the industry, and it and the related electronic components and circuits contained therein will not be described in detail here.
  • the base plate 11 is provided with a number of positioning posts 1315
  • the protective cover 33 is provided with positioning holes 331 corresponding to the positioning posts 1315
  • both sides of the protective cover 33 are provided with insertion sheets 332
  • the horizontal portions 131 is provided with limiting sheets 1316
  • a slot is provided between the limiting sheet 1316 and the horizontal portion 131
  • the insertion sheets 332 and the limiting sheets 1316 are mainly used to restrict the protective cover 33 from moving in the vertical direction (the surface perpendicular to the base plate 11)
  • the positioning posts 1315 and the positioning holes 331 are mainly used to restrict the protective cover 33 from moving in the horizontal direction (the surface parallel to the base plate 11).
  • the protective cover 33 is fixed on the outer surface of the horizontal portion 131, and the driving assembly 3 is arranged on the horizontal portion 13, which can effectively lower the e overall thickness of the panel lamp.
  • the protective cover 33 may be fixed on the outer surface of the horizontal portion 131 by means of locking screws.
  • the outer surface refers to the outside of the panel lamp.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (9)

  1. Lampe-panneau sans cadre, comprenant : un châssis (1), un ensemble source de lumière (2), un ensemble d'excitation (3), et une plaque de transmission de lumière (4) ; dans laquelle
    l'ensemble source de lumière (2) est disposé à l'intérieur du châssis (1), le châssis (1) comprend une plaque de base (11) et des plaques latérales (12) entourant des bords de la plaque de base (11), et chacune des plaques latérales (12) est pourvue d'une partie de montage (13) se pliant vers l'extérieur à l'opposé des bords de la plaque de base (11) ; la partie de montage (13) comprend une partie horizontale (131) et une partie de pliage (132) se pliant vers une direction d'émission de lumière, et la partie horizontale (131) est pourvue d'un premier pourtour convexe (1311) vers la direction d'émission de lumière ; un adhésif est disposé entre le premier pourtour convexe (1311) et la partie de pliage (132), et la plaque de transmission de lumière (4) est liée à la partie horizontale (131) par l'intermédiaire de l'adhésif et est attachée à une partie supérieure du premier pourtour convexe (1311) ;
    caractérisée en ce que
    la partie de pliage (132) comprend une première plaque (1321) et une seconde plaque (1322), une extrémité de la première plaque (1321) est reliée à la partie horizontale (131), et l'autre extrémité de la première plaque (1321) est reliée à une extrémité de la seconde plaque (1322) ; un angle est formé entre la première plaque (1321) et la seconde plaque (1322) de telle sorte qu'un écart soit formé entre la seconde plaque (1322) et la partie horizontale (131), et un bord de la plaque de transmission de lumière (4) est inséré dans l'écart et en chevauchement sur la seconde plaque (1322).
  2. Lampe-panneau sans cadre selon la revendication 1, dans laquelle la partie horizontale (131) est pourvue d'un second pourtour convexe (1312) vers la direction d'émission de lumière, le second pourtour convexe (1312) étant situé entre le premier pourtour convexe (1311) et la partie de pliage (132) ; une hauteur de saillie du second pourtour convexe (1312) relativement à la partie horizontale (131) est inférieure à une hauteur de saillie du premier pourtour convexe (1311) relativement à la partie horizontale (131) ; une première rainure (1313) configurée pour recevoir l'adhésif est formée entre le premier pourtour convexe (1311) et le second pourtour convexe (1312), et une seconde rainure (1314) configurée pour recevoir l'adhésif débordant de la première rainure (1313) est formée entre le second pourtour convexe (1312) et la partie de pliage (132).
  3. Lampe-panneau sans cadre selon la revendication 1, dans laquelle la première plaque (1321) et la seconde plaque (1322) sont perpendiculaires l'une à l'autre, la seconde plaque (1322) est parallèle à la partie horizontale (131), et la plaque de transmission de lumière (4) chevauche une surface intérieure de la seconde plaque (1322) ; ou la première plaque (1321) et la seconde plaque (1322) sont parallèles, et la plaque de transmission de lumière chevauche une surface d'extrémité de la seconde plaque (1322).
  4. Lampe-panneau sans cadre selon la revendication 3, dans laquelle la plaque de base (11) est une plaque rectangulaire, quatre plaques latérales (12) sont prévues, et deux plaques latérales opposées (12) sont respectivement pourvues de la partie de pliage (132).
  5. Lampe-panneau sans cadre selon la revendication 3, dans laquelle la plaque de base (11) est une plaque rectangulaire, quatre plaques latérales (12) sont prévues, et trois des plaques latérales (12) sont respectivement pourvues de la partie de pliage (132).
  6. Lampe-panneau sans cadre selon la revendication 1, dans laquelle une partie supérieure du premier pourtour convexe (1311) est une surface plate.
  7. Lampe-panneau sans cadre selon l'une quelconque des revendications 1 à 6, dans laquelle la plaque de transmission de lumière (4) est une plaque de diffusion ou une plate prismatique.
  8. Lampe-panneau sans cadre selon l'une quelconque des revendications 1 à 6, dans laquelle l'adhésif est de la colle transparente ou de la colle de couleur blanc laiteux, et l'adhésif est sous forme de pâte.
  9. Lampe-panneau sans cadre selon l'une quelconque des revendications 1 à 6, dans laquelle l'ensemble d'excitation (3) est disposé sur une surface extérieure du châssis (1), et l'ensemble d'excitation (3) comprend une carte d'excitation (31), une feuille isolante (32) et un couvercle de protection (33), la feuille isolante (32) couvre la carte d'excitation (31), et le couvercle de protection (33) est relié de façon séparable au châssis (1) et couvre la carte d'excitation (31).
EP21189073.6A 2020-08-05 2021-08-02 Lampe de panneau sans cadre Active EP3951258B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021609547.9U CN212961085U (zh) 2020-08-05 2020-08-05 一种无边框灯盘灯

Publications (2)

Publication Number Publication Date
EP3951258A1 EP3951258A1 (fr) 2022-02-09
EP3951258B1 true EP3951258B1 (fr) 2024-01-03

Family

ID=75347899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21189073.6A Active EP3951258B1 (fr) 2020-08-05 2021-08-02 Lampe de panneau sans cadre

Country Status (2)

Country Link
EP (1) EP3951258B1 (fr)
CN (1) CN212961085U (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205640732U (zh) * 2016-05-20 2016-10-12 深圳创维－Rgb电子有限公司 平板灯和照明装置
CN206555838U (zh) * 2017-03-10 2017-10-13 蓝永辉 一种集成投射灯
CN207268381U (zh) * 2017-05-10 2018-04-24 惠州市恒途光电科技有限公司 一种防溢胶面板灯边框
CN212961418U (zh) * 2020-07-24 2021-04-13 漳州立达信光电子科技有限公司 扩散板固定结构及灯盘灯

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EP3951258A1 (fr) 2022-02-09
CN212961085U (zh) 2021-04-13

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