A bezel-less panel light for label backlighting

Abstract

The utility model belongs to the technical field of LED lighting, specifically a kind of frameless panel light for label backlight, including diffusion plate, frame, light guide plate, backboard, luminous lamp strip and transparent adhesive tape, frame includes two groups respectively being set on the opposite sides of the same side of diffusion plate, light guide plate is set to diffusion plate, light guide plate is set between two groups of frames, backboard is set to the side surface of light guide plate away from diffusion plate, luminous lamp strip is set on the side surface of frame mutually close, the light of luminous lamp strip is emitted through light guide plate, and it is emitted from diffusion plate, transparent adhesive tape is wound in the two sides of two groups of frames, to be used for the adhesion of diffusion plate, frame and backboard. The present application has the effect of reducing the thickness of diffusion plate, so that the thickness of whole lamp can also be reduced, and the diffusion plate does not need to be processed, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of LED lighting, specifically a frameless panel light for label backlighting. Background Technology

[0002] Direct-emitting panel lights are widely used in commercial and residential environments, offering advantages such as uniform illumination and soft light. However, in some supermarkets and stores, backlighting is required for product labels, prices, and descriptions. Current frameless panel lights, to achieve a frameless effect from the front, typically use a 4mm thick acrylic diffuser plate with grooves on all four sides, then embed the grooved diffuser plate into an aluminum profile frame. This solution has the following drawbacks:

[0003] High material costs and relatively thick overall panel lights: the material cost of the thick diffuser plate accounts for a large proportion of the total cost;

[0004] Complex processing: requires precision grooving and has a low yield rate;

[0005] Structural redundancy: The aluminum profile frame needs to be designed with a slotted structure, which makes the assembly process complicated.

[0006] Therefore, existing technologies need to be improved. Utility Model Content

[0007] To address the shortcomings of existing technologies, this application proposes a frameless panel light for label backlighting.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0009] A frameless panel light for label backlighting includes a diffuser plate, a frame, a light guide plate, a back plate, light-emitting strips, and transparent tape. The frame includes two sets respectively disposed on opposite sides of the same side of the diffuser plate. The light guide plate is disposed on the diffuser plate and between the two sets of frame pieces. The back plate is disposed on the side of the light guide plate away from the diffuser plate. The light-emitting strips are disposed on the side surfaces of the frame pieces that are close to each other. The light emitted by the light-emitting strips passes through the light guide plate and exits from the diffuser plate. The transparent tape is wrapped around both sides of the two sets of frame pieces to bond the diffuser plate, the frame, and the back plate together.

[0010] Preferably, the back panel is made of a reflective material.

[0011] Preferably, a limiting plate is provided on the frame, the limiting plate being used to abut against the side of the back plate away from the light guide plate.

[0012] Preferably, the transparent tape includes a winding portion and a blocking portion. The winding portion is wound around one edge of the two sets of frame panels. The blocking portion is connected to the winding portion and is perpendicular to the frame panels. The blocking portion blocks the diffuser plate, the light guide plate, and the back plate.

[0013] Preferably, the light strip is provided with a lead wire, which extends out of the frame, and the portion of the lead wire extending out of the frame is provided with a quick-connect terminal for power supply and control.

[0014] Preferably, a placement groove is provided on one side of the two frame edges that are far apart from each other, and an ambient light strip is placed in the placement groove.

[0015] Preferably, a blocking strip is provided at the opening of the placement slot, the blocking strip being used to prevent the ambient light strip from falling out of the placement slot opening.

[0016] In summary, this application includes at least the following beneficial technical effects:

[0017] When assembling this direct-emission panel light, the back plate and light guide plate are first placed in the predetermined positions on the frame limiting plate, and then the diffuser plate is placed to achieve the sequential stacking of the back plate, light guide plate, and diffuser plate. Finally, transparent tape is used to wrap the two sides of the frame to bond the back plate, light guide plate, and diffuser plate to the frame. This design method does not require slotting the diffuser plate on the side to snap it into the frame. Simply wrapping the two sides of the frame with transparent tape is enough to bond the back plate, light guide plate, and diffuser plate. At the same time, since the transparent tape is also transparent, light can still pass through, achieving the frameless effect of the panel light. By not slotting the diffuser plate, the thickness of the diffuser plate can be reduced, thus reducing the overall thickness of the light. Furthermore, the zero-gap design between the back plate, light guide plate, and diffuser plate can enhance the light efficiency of the panel light. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the frameless panel light in this application;

[0020] Figure 2 This is an exploded view of the frameless panel light in this application;

[0021] Figure 3This is a schematic diagram of the border in this application;

[0022] Figure 4 This is a schematic diagram of a panel light with side-emitting function according to this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Diffuser plate; 2. Frame; 21. Light strip; 22. Placement slot; 23. Blocking strip; 3. Light guide plate; 4. Back plate; 5. Transparent tape; 51. Wrapping part; 52. Blocking part; 6. Limiting plate; 7. Outlet wire; 8. Ambient light strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] This application discloses a frameless 2-panel light for label backlighting. (See also...) Figures 1 to 4The frameless panel light includes a diffuser plate 1, a frame 2, a light guide plate 3, a back plate 4, light-emitting strips 21, and transparent tape 5. Specifically, in this embodiment, the diffuser plate 1 is a rectangular thin plate to make the light more uniform and soft when emitted, avoiding obvious light spots, shadows, or glare, and improving the comfort and aesthetics of the lighting. In this embodiment, the thickness of the diffuser plate 1 is 1mm. The frame 2 is integrally formed from 6063 aluminum alloy. The frame 2 is long and strip-shaped, and there are two sets of the frame 2, which are spaced apart. The light guide plate 3 is also rectangular, with a thickness of 3mm. It is positioned on the edges of opposite sides of the diffuser plate 1, and two sets of frame plates 2 are located on the same side of the diffuser plate 1. The light guide plate 3 is also shaped like a rectangular plate and has a thickness of 3mm. The light guide plate 3 is mounted on the diffuser plate 1, and a back plate 4 abuts against one side of the frame of the light guide plate 3. The light guide plate 3 is located in the area between the two frames. Viewed from the front of the diffuser plate 1, the back plate 4 and the light guide plate 3 have the same cross-sectional area, but the back plate 4 is thinner than the light guide plate 3. In this embodiment, the thickness of the back plate 4 is 0.6mm. mm, the back plate 4 abuts against the side of the light guide plate 3 away from the diffuser plate 1, the dot-printed surface of the light guide plate 3 faces the back plate 4, and the light-emitting strips 21 are arranged on the side surfaces of the frame 2 that are close to each other. The light-emitting strips 21 can be arranged on both frames 2 or only one set can be arranged. In this embodiment, the light-emitting strips 21 are attached to the frame 2 and only one set of light-emitting strips 21 is arranged. In other embodiments, other forms are also possible. The light-emitting strips 21 are provided with multiple sets of 4014 LED beads. The emitted light enters from the side of the light guide plate 3 and exits from the diffuser plate 1. Two sets of transparent tape 5 are provided, and the two sets of transparent tape 5 are wrapped around the two sides of the two sets of frame 2 respectively. Through the adhesive effect of the transparent tape 5, the diffuser plate 1, the back plate 4 and the frame 2 are bonded together. This design method can achieve the frameless form of the panel light without cutting grooves on the side of the diffuser plate 1. At the same time, since the diffuser plate 1, the light guide plate 3 and the back plate 4 are connected in sequence, the loss of light during the propagation process can be reduced, and the light efficiency of the panel light can be enhanced.

[0026] In this embodiment, in order to further improve the light efficiency of the panel light, the back plate 4 is made of reflective material. So when the light emitted from the light strip 21 hits the back plate 4, the back plate 4 can reflect the light, so that the back plate 4 integrates the reflective function and the structural support function, without the need to add an additional structure. That is, the light efficiency of the panel light is enhanced without changing the thickness of the panel light.

[0027] In some embodiments, in order to improve the structural strength of the panel light, a limiting plate 6 is provided on the frame 2. The limiting plate 6 is integrally formed with the frame 2, and the length of the limiting plate 6 extends along the length direction of the frame 2, and the width extends towards the side where the two frames 2 are close to each other. The limiting plate 6 is used to abut against the back plate 4. The limiting plate 6 restricts the side of the back plate 4 away from the light guide plate 3 to prevent it from falling off. At the same time, in this embodiment, the light guide plate 3 is abutted and fixed through the inner side of one of the frames 2 and the light-emitting strip 21. When the transparent tape 5 is wrapped around the frame 2, the back plate 4 is also bonded to the transparent tape 5 through the space between the two limiting plates 6.

[0028] In this embodiment, the transparent tape 5 includes a winding portion 51 and a blocking portion 52. The winding portion 51 is ring-shaped and is wound around both sides of the frame 2. The blocking portion 52 is connected to the winding portion 51 and blocks one side opening of the winding portion 51 so that the blocking portion 52 and the winding portion 51 form a whole. The blocking portion 52 is used to block the sides of the back plate 4, the light guide plate 3, and the diffuser plate 1. When the transparent tape 5 is installed on the frame 2, the winding portion 51 and the blocking portion 52 are used to bond the back plate 4, the light guide plate 3, and the diffuser plate 1 in two directions respectively, so that the structure of the panel light is more stable. At this time, the light strip 21 will be in the cavity formed by the side wall of the frame 2, the limiting plate 6, the light guide plate 3, the back plate 4, and the diffuser plate 1. By blocking the blocking portion 52, the dust adhering to the light strip 21 and affecting the light efficiency is reduced.

[0029] To further enhance the visual appeal of the panel lights, placement slots 22 are provided on the opposite sides of the frame 2. The placement slots 22 are through slots, and their length is parallel to the length of the frame 2. Ambient light strips 8 are installed in the placement slots 22, with the LEDs on the ambient light strips 8 facing the opening of the placement slots 22. Different ambient lights can be selected based on the applicable products. The products are actually used on display shelves. Depending on the usage, ambient light strips 8 can be installed in both placement slots 22 of the frame 2, or only in one of the placement slots 22. The diffuser plate 1 emits light from the front and is used to backlight product labels, prices, and descriptions. The ambient light strips 8 on the side are used for side supplementary lighting and emit light outwards to enhance the ambiance. At the same time, two blocking strips 23 are provided at the opening of the placement slots 22 to prevent the ambient light strips 8 from falling out of the placement slots 22.

[0030] In addition, the light strip 21 is provided with a wire outlet 7, which extends from the frame 2 and is provided with a quick-connect terminal. The wire outlet 7 is also connected to the ambient light strip 8 to facilitate power supply and control of the light strip 21 and the ambient light strip 8.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A frameless panel light for label backlighting, characterized in that: The device includes a diffuser plate, a frame, a light guide plate, a back plate, light-emitting strips, and transparent tape. The frame includes two sets of frames respectively disposed on opposite sides of the same side of the diffuser plate. The light guide plate is disposed on the diffuser plate and between the two sets of frames. The back plate is disposed on the side of the light guide plate away from the diffuser plate. The light-emitting strips are disposed on the side surfaces of the frames that are close to each other. The light emitted by the light-emitting strips passes through the light guide plate and exits from the diffuser plate. The transparent tape is wrapped around both sides of the two sets of frames to bond the diffuser plate, the frame, and the back plate together.

2. A frameless panel light for label backlighting according to claim 1, characterized in that: The back panel is made of reflective material.

3. A frameless panel light for label backlighting according to claim 1, characterized in that: A limiting plate is provided on the frame, which is used to abut against the side of the back plate away from the light guide plate.

4. A frameless panel light for label backlighting according to claim 3, characterized in that: The transparent tape includes a winding portion and a blocking portion. The winding portion is wound around one edge of the two sets of frame panels. The blocking portion is connected to the winding portion and is arranged perpendicular to the frame panels. The blocking portion blocks the diffuser plate, the light guide plate and the back plate.

5. A frameless panel light for label backlighting according to claim 1, characterized in that: The light strip is provided with a lead wire that extends out of the frame. The portion of the lead wire extending out of the frame is provided with a quick-connect terminal for power supply and control.

6. A frameless panel light for label backlighting according to claim 1, characterized in that: A placement groove is provided on one side of each of the two frame frames that are far apart from each other, and an ambient light strip is placed in the placement groove.

7. A frameless panel light for label backlighting according to claim 6, characterized in that: A blocking strip is provided at the opening of the placement slot to prevent the ambient light strip from falling out of the placement slot.

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