LED laser inner carving display lamp with back plate quick change structure

Abstract

The utility model belongs to laser inner carving display lamp technical field, concretely relates to a LED laser inner carving display lamp with backplate quick change structure. No back mounting plate, backplate can choose one and cooperate with the recess of lamp holder, top plate rear portion, the upper surface of no back mounting plate is flush with the upper surface of top plate, the upper surface of backplate exceeds top plate, backplate has multiple specifications, and the size and shape of laser inner carving crystal are matched, at least two jack holes are provided in the recess of lamp holder, the jack hole is blind hole, and the inner wall of lamp holder is provided with suction frame corresponding to the jack hole, and a magnet is installed in the suction frame, the side of no back mounting plate, backplate and lamp holder is provided with the plug-in sleeve corresponding to the jack hole, the plug-in sleeve can be plugged into the jack hole, a magnet is installed in the plug-in sleeve, and the magnetic pole setting mode is opposite to the magnet in the suction frame. The utility model realizes tool-free quick assembly and replacement, mechanical limiting, and the stability of the double guarantee structure of magnetic force, supports the quick replacement of different specifications of backplate.

Description

Technical Field

[0001] This utility model belongs to the technical field of laser engraving display lights, specifically relating to an LED laser engraving display light with a quick-change backplate structure. Background Technology

[0002] LED laser engraving display lights are luminous bases used to display laser-engraved crystal crafts. They contain multiple high-brightness LED beads, available in single-color (white, warm light) or multi-color (RGB full color) modes. The brightness of the beads is controlled by a constant current drive circuit, and some models feature dimming, color-changing, or flashing modes. Their core function is to illuminate the bottom or sides of the crystal engraving using LED light sources, thereby enhancing the three-dimensionality, layering, and visual impact of the internal patterns. They are typically used in conjunction with laser-engraved crystal products (such as souvenirs, trophies, and ornaments), combining art display with electronic lighting.

[0003] Our research has shown that placing a back panel on the back of crystal artifacts enhances the three-dimensionality of the design, reduces light leakage, and makes the carved patterns appear more distinct. If the back of the crystal is an open space or a transparent background, external light can enter the crystal and interfere with the viewing experience. A back panel creates a "dark background," allowing the carved patterns to exhibit strong contrast under light. Especially during the day or in a display case, the back panel significantly improves the edge clarity and contrast of the design. It also improves the display effect, focusing the viewer's attention on the carved patterns. Furthermore, the back panel is usually connected to the back frame of the lamp holder, limiting the crystal's movement and preventing it from sliding out of the lamp holder due to external impacts or gravity.

[0004] Our company has tried various methods for setting the backplate, including screw installation, plug-in, bonding, and one-piece injection molding. However, we found that these methods were not convenient for replacing different crystal crafts, and the backplates were prone to loosening or aging and falling off. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this invention aims to solve the problem of existing LED laser engraving display lights. While detachable back panels improve the display effect of laser-engraved crystals, the existing back panel structure and installation / removal methods remain unchanged, or their robustness is insufficient. The purpose of this invention is to provide an LED laser engraving display light with a quick-change back panel structure, enabling tool-free rapid assembly and replacement. A plug-in sleeve provides mechanical limiting, and magnetic force provides adsorption and locking, doubly ensuring structural stability. It supports rapid replacement of back panels with different shapes, colors, or functions.

[0006] To achieve the above objectives, the utility model adopts the following technical solution: an LED laser engraving display light with a quick-change backplate structure, comprising:

[0007] The lamp holder contains a light-emitting panel and a power plug. The light-emitting panel is controlled by a power and mode switch to display the light.

[0008] The top plate, installed on top of the lamp holder, is used to hold the laser-engraved crystal and is equipped with a light guide plate located above the light-emitting plate.

[0009] The backless mounting plate / backplate can be selectively fitted into the recessed area at the back of the lamp holder or top plate. The upper surface of the backless mounting plate is flush with the upper surface of the top plate. The backplate extends beyond the upper surface of the top plate and comes in various sizes to match the size and shape of the laser-engraved crystal. The backless mounting plate / backplate has a central plug hole for connection to the power plug on the lamp holder, and symmetrical curved edges on both sides to match the corresponding curved corners of the lamp holder's recess. The curved edges of the backplate extend and surround the left and right sides of the laser-engraved crystal, while also restricting crystal movement. These curved edges also facilitate quick installation, positioning, and removal of the backless mounting plate. The backless mounting plate is suitable for scenarios where a backplate is not required, avoiding an unsightly recess after assembly with the lamp holder. The backplate comes in various sizes and styles for easy replacement, but the bottom mounting structure is the same for all.

[0010] The lamp holder has at least two blind holes in its groove. A magnetic frame is provided on the inner wall of the lamp holder corresponding to the holes, and a magnet is installed in the magnetic frame. There is no back mounting plate, and the side of the back plate connected to the lamp holder has a plug sleeve corresponding to the hole. The plug sleeve can be inserted into the hole, and a magnet is installed in the plug sleeve. The magnetic pole setting is opposite to that of the magnet in the magnetic frame.

[0011] According to another embodiment of the utility model or any of the foregoing embodiments, the LED laser engraving display light, the backless mounting plate, the back plate, the lamp holder, and the top plate are made of plastic material of the same color.

[0012] According to another embodiment of the utility model or any of the foregoing embodiments of the LED laser engraving display light, a base support is provided at the connection between the lamp holder and the backless mounting plate / back plate. The base support is a thin plate structure, integrally injection molded with the lamp holder. The connection between the backless mounting plate / back plate and the lamp holder is installed on the base support of the lamp holder instead of directly contacting the placement surface of the lamp holder. This avoids processing or assembly errors of the backless mounting plate / back plate affecting the flatness of the bottom of the lamp holder. At the same time, the backless mounting plate / back plate has a double-sided covering and plug-in / magnetic structure, making it more stable.

[0013] According to another embodiment of the utility model or any of the foregoing embodiments, the length of the insertion sleeve and the depth of the insertion hole are 1.5-6mm. Below 1.5mm, the anti-shear effect is poor; above 6mm, insertion and removal are inconvenient.

[0014] According to another embodiment of the utility model or any of the foregoing embodiments, the LED laser engraving display light has four sets of plug-in sleeves and sockets.

[0015] According to another embodiment of the utility model or any of the foregoing embodiments, the LED laser engraving display light contains magnets in the suction frame and insert sleeve, with the outer side and gaps filled with curable adhesive to prevent the magnets from falling out.

[0016] According to another embodiment of the utility model or any of the foregoing embodiments, the LED laser engraving display light has crisscrossing reinforcing ribs on the back panel that does not face the rear side of the laser-engraved crystal. These reinforcing ribs prevent the thin-walled back panel from deforming after long-term use.

[0017] Beneficial effects of the utility model:

[0018] This invention utilizes a magnetic closure structure to achieve tool-free quick installation and removal, allowing users to easily replace back panels with different styles, colors, or reflective properties. The magnetic structure avoids the wear and tear issues of traditional snap-fit ​​devices, while the insert sleeve distributes some of the support force, improving connection lifespan and shock resistance. The limiting fit between the insert sleeve and the insertion hole prevents the back panel from shifting or tilting, and the magnetic attraction ensures a tight fit, maintaining the overall stability and aesthetics of the display light. The back panel can be replaced with reflective, light-blocking, or diffuse reflective types to achieve different display effects such as enhanced brightness, softened light, or background contrast, making it suitable for various scenarios including home decorations, exhibition halls, and gift displays. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the connection between the backless mounting plate and the lamp holder described in this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the assembly of the backless mounting plate and the lamp holder described in this utility model. Figure 1 ;

[0021] Figure 3 This is a three-dimensional schematic diagram of the assembly of the backless mounting plate and the lamp holder described in this utility model. Figure 2 ;

[0022] Figure 4 A three-dimensional schematic diagram of the mounting backplate of the LED laser engraving display light with quick-change backplate structure described in this utility model. Figure 1 ;

[0023] Figure 5 A three-dimensional schematic diagram of the mounting backplate of the LED laser engraving display light with quick-change backplate structure described in this utility model. Figure 2 ;

[0024] Figure 6 A three-dimensional schematic diagram of the second backplate for the LED laser engraving display light with quick-change backplate structure described in this utility model. Figure 1 ;

[0025] Figure 7 This is a three-dimensional schematic diagram of the lamp holder and back plate of this utility model when they are not installed;

[0026] Figure 8 This is a three-dimensional schematic diagram of the lamp holder and the enlarged suction frame portion described in this utility model;

[0027] In the diagram: 1. Lamp holder; 2. Backless mounting plate; 3. Plug through hole; 4. Covered bend; 5. Power plug; 6. Plug sleeve; 7. Back plate; 8. Reinforcing rib; 9. Magnet; 10. Top plate; 11. Socket; 12. Snap-fit ​​frame; 13. Groove; 14. Light-emitting panel. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1 , 2 As shown in Figures 1 and 4, an LED laser engraving display light with a quick-change backplate 7 includes a lamp holder 1, a top plate 10, a backless mounting plate 2, and a backplate 7.

[0030] like Figure 1 , 8 As shown, the lamp holder 1 contains a light-emitting panel 14 and a power plug 5. The light-emitting panel 14 is controlled by a power and mode switching switch.

[0031] like Figure 1 , 2 As shown, the top plate 10 is installed on the upper part of the lamp holder 1 and is used to place the laser-engraved crystal. It is equipped with a light guide plate, which is located above the light-emitting plate 14.

[0032] like Figure 2 , 3As shown in Figures 4, 5, and 6, the backless mounting plate 2 and the back plate 7 can be selectively fitted into the groove 13 at the rear of the lamp holder 1 and the top plate 10. The upper surface of the backless mounting plate 2 is flush with the upper surface of the top plate 10. The back plate 7 extends beyond the upper surface of the top plate 10 and comes in various sizes to match the size and shape of the laser-engraved crystal. The backless mounting plate 2 and the back plate 7 have a plug through hole 3 at their center to mate with the power plug 5 on the lamp holder 1. Symmetrical curved edges 4 are provided on both sides, and the groove 13 of the lamp holder 1 has corresponding arc-shaped corners for fitting. The curved edges 4 of the back plate 7 extend and surround the left and right sides of the laser-engraved crystal, while restricting crystal movement. The curved edges 4 also facilitate quick installation, positioning, and removal of the backless mounting plate 2. The backless mounting plate 2 is suitable for use in scenarios where the back plate 7 is not needed, and avoids the unsightly appearance of the groove 13 after assembly with the lamp holder 1. The back plate 7 comes in various sizes and styles for easy replacement, but the bottom mounting structure is the same. The backless mounting plate 2, back plate 7, lamp holder 1, and top plate 10 are all made of the same color plastic. A base support is provided at the connection between the lamp holder 1 and the backless mounting plate 2 and back plate 7. This base support is a thin plate structure, integrally injection molded with the lamp holder 1. The connection between the backless mounting plate 2 and back plate 7 is mounted on the base support of the lamp holder 1, rather than directly contacting the placement surface of the lamp holder 1. This avoids processing or assembly errors of the backless mounting plate 2 and back plate 7 affecting the flatness of the bottom of the lamp holder 1. Furthermore, the backless mounting plate 2 and back plate 7 have a double-sided covering and interlocking / magnetic structure, making them more stable. The back plate 7, not facing the laser-engraved crystal, has crisscrossing reinforcing ribs 8. These reinforcing ribs 8 prevent the thin-walled back plate 7 from deforming after long-term use.

[0033] like Figure 2 , 3 As shown in Figures 7 and 8, at least two insertion holes 11 are provided in the groove 13 of the lamp holder 1. Insertion holes 11 are blind holes. A suction frame 12 is provided on the inner wall of the lamp holder 1 corresponding to the insertion hole 11, and a magnet 9 is installed inside the suction frame 12. A plug-in sleeve 6 corresponding to the insertion hole 11 is provided on the side where the back mounting plate 2 and back plate 7 connect to the lamp holder 1. The plug-in sleeve 6 can be inserted into the insertion hole 11, and a magnet 9 is installed inside the plug-in sleeve 6. The magnetic pole arrangement is opposite to that of the magnet 9 in the suction frame 12. The length of the plug-in sleeve 6 and the depth of the insertion hole 11 are 1.5-6mm. Below 1.5mm, the anti-shear effect is poor; above 6mm, insertion and removal are inconvenient. Preferably, there are four sets of plug-in sleeves 6 and insertion holes 11. The outer side of the magnet 9 inside the suction frame 12 and the gaps are filled with a curable adhesive to prevent the magnet 9 from falling out.

[0034] The working principle of this utility model:

[0035] This invention utilizes a magnetically pluggable quick-change structure at the rear of the lamp holder 1 of an LED laser engraving display lamp to achieve rapid assembly and disassembly, as well as stable positioning, of the back plate 7 or the backless mounting plate 2 with the lamp holder 1. The lamp holder 1 contains a light-emitting plate 14 that illuminates the laser-engraved crystal upwards via a light guide plate. The top plate 10 provides a fixed support to the lamp holder 1. The backless mounting plate 2 or the back plate 7 can selectively mate with the lamp holder 1 and the rear groove 13 of the top plate 10. The back plate 7 and the backless mounting plate 2 have plug-in sleeves 6 on both sides, which are inserted into the insertion holes 11 within the groove 13 of the lamp holder 1. These sleeves are reliably connected by internal magnets 9 that attract each other to the magnets 9 within the lamp holder 1's magnetic frame 12. The depth of the plug-in sleeves 6 is designed within the range of 1.5–6 mm to ensure easy insertion and removal and prevent shearing and loosening. The back plate 7 uses a covered curved edge 4 to limit and surround the two sides of the laser-engraved crystal, preventing sliding displacement and facilitating quick installation and disassembly. A reinforcing rib 8 is provided on its rear side to prevent deformation. The lamp holder 1 features an integrated base, ensuring that assembly errors in the back plate 7 or mounting plate do not affect the flatness of the lamp's bottom, thus improving overall stability and assembly precision. This structure utilizes a combination of magnetic attraction and mechanical limiting principles to achieve efficient and quick replacement of the back plate 7, stable connection, and long-term structural reliability.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and characteristics of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An LED laser engraving display light with a quick-change backplate structure, characterized in that: include: The lamp holder (1) contains a light-emitting panel (14) and a power plug (5). The light-emitting panel (14) is controlled by a power and mode switching switch. The top plate (10), installed on the upper part of the lamp holder (1), is used to place the laser-engraved crystal and is equipped with a light guide plate, which is located above the light-emitting plate (14). The backless mounting plate (2) and the back plate (7) can be selectively matched with the groove (13) at the rear of the lamp holder (1) and the top plate (10). The upper surface of the backless mounting plate (2) is flush with the upper surface of the top plate (10). The back plate (7) extends beyond the upper surface of the top plate (10). The back plate (7) has various specifications to match the size and shape of the laser-engraved crystal. The backless mounting plate (2) and the back plate (7) have a plug through hole (3) in the center to match the power plug (5) on the lamp holder (1). Symmetrical wrapping curved edges (4) are provided on both sides. The groove (13) of the lamp holder (1) is provided with a corresponding arc-shaped corner to match. The wrapping curved edges (4) of the back plate (7) extend and surround the left and right sides of the laser-engraved crystal, while restricting the movement of the crystal. At least two insertion holes (11) are provided in the groove (13) of the lamp holder (1). The insertion holes (11) are blind holes. A suction frame (12) is provided on the inner wall of the lamp holder (1) corresponding to the insertion hole (11). A magnet (9) is installed in the suction frame (12). A plug sleeve (6) corresponding to the insertion hole (11) is provided on the side where the back mounting plate (2) and the back plate (7) are connected to the lamp holder (1). The plug sleeve (6) can be inserted into the insertion hole (11). A magnet (9) is installed in the plug sleeve (6). The magnetic pole setting method is opposite to that of the magnet (9) in the suction frame (12).

2. The LED laser engraving display light with a quick-change backplate structure according to claim 1, characterized in that: The backless mounting plate (2), back plate (7), lamp holder (1), and top plate (10) are made of plastic of the same color.

3. An LED laser engraving display light with a quick-change backplate structure according to claim 1 or 2, characterized in that: A base is provided at the connection between the lamp holder (1) and the backless mounting plate (2) and the back plate (7). The base is a thin plate structure and is integrally injection molded with the lamp holder (1). The connection between the backless mounting plate (2) and the back plate (7) is installed on the base of the lamp holder (1) instead of directly contacting the placement surface of the lamp holder (1).

4. The LED laser engraving display light with a quick-change backplate structure according to claim 1, characterized in that: The length of the insertion sleeve (6) and the depth of the insertion hole (11) are 1.5-6mm.

5. An LED laser engraving display light with a quick-change backplate structure according to claim 1 or 4, characterized in that: The insertion sleeve (6) and insertion hole (11) are in four sets.

6. The LED laser engraving display light with a quick-change backplate structure according to claim 1, characterized in that: The magnet (9) inside the suction frame (12) and the insertion sleeve (6) is filled with solidifiable glue on the outside and in the gap.

7. An LED laser engraving display light with a quick-change backplate structure according to claim 1, characterized in that: The back plate (7) is provided with intersecting reinforcing ribs (8) on the rear side not facing the laser-engraved crystal.

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