LED (light-emitting diode) decorative lamp string capable of uniformly emitting light

Abstract

The utility model discloses a light-emitting diode (LED) decorative lamp string capable of emitting light evenly, which comprises a plurality of lamp bodies, LED lamp beads installed in the lamp bodies and a sleeve line connected with the LED lamp beads of the lamp bodies, each lamp body comprises a bottom shell and a face shell which are buckled with each other, the face shell comprises a panel, a light-emitting cover protruding out of the panel is arranged in the panel, and the sleeve line is connected with the bottom shell and the face shell. The light-emitting cover comprises a cylinder part and a hemispherical top located at the top end of the cylinder part, a plurality of refraction ribs parallel to the axis of the cylinder part are arranged on the inner wall of the cylinder part, the LED lamp beads are installed at the positions, corresponding to the light-emitting cover, of the sleeve line, and the sleeve line is fixed to the bottom shell. The light-emitting cover has the advantages of three-dimensional and graceful shape, large light-emitting surface, less glare, simple structure, high light-emitting efficiency, good waterproofness, easiness in assembly, high production efficiency, low production cost, good durability and the like.

Description

Technical Field

[0001] This utility model relates to an LED lighting fixture, specifically disclosing a uniformly emitting LED decorative light string. Background Technology

[0002] Decorative light strings consist of multiple light bodies and power cords connecting them. Each light body includes a housing, a circuit board mounted inside the housing, and LED beads mounted on the circuit board. The power cord passes through the housing and connects to the circuit board. The housing includes a bottom shell and a top shell. A lens corresponding to the LED beads is positioned in the center of the top shell, and the light emitted by the LED beads is optically processed by the lens before being emitted. However, the light source processed by the lens is a point light source with a small luminous area, making it prone to glare. Furthermore, some light leakage occurs in areas outside the lens, resulting in uneven overall light emission from the light source. Utility Model Content

[0003] Therefore, it is necessary to provide an LED decorative light string that provides soft light, a large luminous area, and no glare, addressing the existing technical problems.

[0004] To address the problems of existing technologies, this utility model discloses a uniformly emitting LED decorative light string, comprising multiple light bodies, LED beads installed inside the light bodies, and sleeves connecting the LED beads of the multiple light bodies. Each light body includes a bottom shell and a top shell that interlock with each other. The top shell includes a panel, and a light-emitting cover protruding from the panel is provided in the panel. The light-emitting cover includes a cylindrical part and a hemispherical dome located at the top of the cylindrical part. The inner wall of the cylindrical part is provided with several refractive ribs parallel to its axis. The LED beads are installed on the sleeves at positions corresponding to the light-emitting cover, and the sleeves are fixed to the bottom shell.

[0005] The beneficial effects of this utility model are as follows: because a light-emitting cover is set on the shell, the light-emitting cover includes a cylindrical part and a hemispherical dome located at the top of the cylindrical part, and the inner wall of the cylindrical part is provided with several refractive ribs, the light-emitting cover has a three-dimensional and beautiful shape, a large light-emitting surface, less glare, simple structure, and high light output efficiency.

[0006] As a further improvement of this utility model: the sleeve includes an outer sheath and a wire wrapped inside the outer sheath. An opening is provided on one side of the outer sheath, and the wire inside the opening is cut off. The LED bead is installed in the opening, with its positive and negative terminals welded to the cut ends of the wire, respectively. A transparent adhesive is provided on the opening of the outer sheath to seal the opening and the LED bead. A wire outlet groove is provided on each side of the bottom shell, and two supporting ribs are provided between the two wire outlet grooves, supporting the sleeve wire on both sides of the LED bead. A first buckle is provided in the bottom shell between the supporting ribs and the wire outlet grooves, and the first buckle engages with the upper side of the sleeve wire. A second buckle is provided in the bottom shell on both sides of the wire outlet grooves, and a groove is provided on the edge of the panel to mate with the second buckle. Groove covers are provided on both sides of the panel to mate with the wire outlet grooves on the bottom shell; the second buckle engages in the groove, and the groove covers press the sleeve wire tightly into the wire outlet groove. A mounting hole is provided on one side of the bottom shell edge near the wire outlet groove. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the assembly of the lamp body of this utility model.

[0008] Figure 2 This is a schematic diagram of the bottom shell of this utility model.

[0009] Figure 3 This is a schematic diagram of the installation structure of the LED lamp beads and the sleeve of this utility model.

[0010] Figure 4 This is a schematic diagram of the structure of the face shell of this utility model.

[0011] Figure 5 This is a schematic diagram of the external structure of the assembled version of this utility model. Detailed Implementation

[0012] To further understand the features, technical means, specific purposes, and functions of this utility model, a more detailed description of the utility model is provided below in conjunction with the accompanying drawings and specific embodiments. The descriptions of the positions of the components themselves and between components in this application (including but not limited to upper, lower, inner, outer, left, right, top, and bottom, etc.) are relative relationships with reference only to the positions of the relevant components shown in the accompanying drawings of this application, and do not represent an absolute limitation on the scope of protection of this utility model. Those skilled in the art should understand that if the view orientation of the components changes, the above description of the positional relationships may change, but the essential mechanical structure remains unchanged.

[0013] refer to Figure 1A uniformly emitting LED decorative light string includes multiple light bodies and a sleeve 3 connecting the multiple light bodies. The light body includes a bottom shell 1, a top shell 2, and LED beads 4 installed on the sleeve 3 inside the bottom shell 1.

[0014] refer to Figure 1 and Figure 2 The bottom shell 1 has two opposing cable outlet grooves 11 on its two side edges. Two supporting ribs 12 are arranged in the bottom shell 1 along the straight line of the two cable outlet grooves 11. A pair of first clips 131 are arranged between the supporting ribs 12 and the cable outlet grooves 11 in the bottom shell 1, and a pair of second clips 132 are arranged on both sides of the cable outlet grooves 11 in the bottom shell 1. A mounting hole 14 is provided on each side of the bottom shell 1 near one of the two cable outlet grooves 11. The mounting holes 14 are used to fix the lamp body to the wall, and their placement near the cable outlet grooves 11 allows the lamp body to better withstand the tension of the cable sleeve 3.

[0015] refer to Figure 1 and Figure 3 The faceplate 2 includes a panel 21, with a light-emitting cover 22 protruding upward from the center of the panel 21. The light-emitting cover 22 includes a cylindrical portion 221 and a hemispherical dome 222 located at the top of the cylindrical portion 221. The side edges of the panel 21 are provided with slot covers 24 that mate with the wire outlet slots 11 on the bottom shell 1. The edges of the panel 21 are also provided with slots 25 that mate with the second snap fastener 132. The inner wall of the cylindrical portion 221 of the light-emitting cover 22 is provided with a plurality of refractive ribs 223 parallel to its axis. The refractive ribs 223 can reduce total internal reflection of light from the inner wall of the cylindrical portion 221, refracting more light out of the cylindrical portion 221 and increasing the brightness of the cylindrical portion 221. The finer and denser the refractive ribs 223, the higher the brightness of the cylindrical portion 221. The higher the cylindrical portion 221 is, the lower the brightness of the hemispherical dome 222. By appropriately setting the size and density of the refractive ribs 223 and the height of the cylindrical portion 221, the brightness of the cylindrical portion 221 can be made consistent with that of the hemispherical dome 222, resulting in uniform overall light emission from the light-emitting cover 22. Since a light-emitting cover 22 protruding upwards from the panel is provided in the center of the faceplate 2, and the light-emitting cover 22 includes a cylindrical portion 221 and a hemispherical dome 221 located at the top of the cylindrical portion 221, the light-emitting cover 22 has a three-dimensional and aesthetically pleasing shape, a large light-emitting surface, and less glare. Furthermore, since the inner wall of the cylindrical portion 221 is provided with refractive ribs 223, these ribs can increase the brightness of the cylindrical portion, resulting in uniform overall brightness of the light-emitting cover 22. Compared with other schemes that use light-shielding structures, its structure is simple and its light-emitting efficiency is high.

[0016] refer to Figure 4The sleeve 3 includes an outer sheath 31 and a conductor 32 wrapped in the outer sheath 31. An opening 310 is provided on one side of the outer sheath 31 of the sleeve 3. The conductor 32 inside the opening 310 is cut off, and the positive and negative lamp leads 41 of the LED bead 4 are respectively welded to both ends of the cut end 320 of the conductor 32. When the LED bead is a monochrome LED bead, only one light-emitting chip is encapsulated inside the LED bead, and the LED bead has only one set of positive and negative lamp leads 41. The sleeve 3 also contains only one conductor 32. When the LED bead is a dual-color or tri-color LED bead, two or three chips are encapsulated inside the LED bead, and two or three sets of positive and negative lamp leads 41 are correspondingly provided outside the LED bead. The sleeve 3 also contains two or three conductors 32. The two or three sets of positive and negative lamp leads 41 of the LED bead 4 are respectively welded to both ends of the cut end 320 of the two or three conductors 32. The LED bead is also coated with a transparent adhesive 33 to seal the opening 310 of the outer sheath of the wire, thus providing waterproofing at the connection between the LED bead 4 and the wire 32. This invention involves opening and soldering the LED bead to the outer sheath of the wire 3, and then coating it with a transparent adhesive for waterproofing. Due to the small size of the LED bead, the soldering and sealing process is easily automated, resulting in high production efficiency, good waterproofing, and eliminating the need for circuit boards and their soldering processes, as well as complex waterproofing structures on the lamp housing. It also offers advantages such as low material cost and simple production process.

[0017] refer to Figure 1 and Figure 5 The assembly method of this utility model is as follows: First, the sleeve 3 with the welded LED beads 4 is inserted into the first buckle 131 of the bottom shell 1 for fixation, while the LED beads 4 are positioned in the center of the bottom shell 1, and the sleeve 3 is positioned on the wire outlet groove 11. The support rib 121 supports the sleeve 3 from below. In this way, the sleeve 3 and the LED beads 4 are suspended in the lamp body, so even if a small amount of liquid enters the lamp body, it will not come into contact with the LED beads, resulting in better waterproofing. Then, the face shell 2 is installed on the bottom shell 1, aligning its groove cover 24 with the wire outlet groove 11, and the second buckle 132 on the bottom shell 1 is inserted into its groove 25 for fixation. The lamp body assembly of this utility model adopts snap-fit ​​connection throughout, without screw fixation, resulting in high production efficiency and low manufacturing cost.

[0018] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A uniformly luminous LED decorative light string, comprising multiple light bodies, LED beads installed within the light bodies, and a wire connecting the LED beads of the multiple light bodies, characterized in that: The lamp body includes a bottom shell and a top shell that interlock with each other. The top shell includes a panel, and a light-emitting cover protruding from the panel is provided in the panel. The light-emitting cover includes a cylindrical part and a hemispherical dome located at the top of the cylindrical part. The inner wall of the cylindrical part is provided with a number of refractive ribs parallel to its axis. The LED lamp beads are installed on the sleeve at the position corresponding to the light-emitting cover. The sleeve is fixed on the bottom shell.

2. The LED decorative light string with uniform light emission according to claim 1, characterized in that: The cable includes an outer sheath and a wire wrapped inside the outer sheath. An opening is provided on one side of the outer sheath, and the wire inside the opening is cut off. The LED lamp bead is installed in the opening, and its positive and negative lamp feet are respectively welded to the two ends of the cut wire. A transparent colloid is provided on the opening of the outer sheath to seal the opening and the LED lamp bead.

3. The LED decorative light string with uniform light emission according to claim 1, characterized in that: The bottom shell has a wire outlet groove on each side, and two support ribs are provided between the two wire outlet grooves in the bottom shell. The two support ribs are respectively supported on the underside of the sleeves on both sides of the LED lamp beads.

4. The LED decorative light string with uniform light emission according to claim 3, characterized in that: A first buckle is provided in the bottom shell between the support rib and the cable outlet groove, and the first buckle is engaged with the upper side of the sleeve.

5. The LED decorative light string with uniform light emission according to claim 4, characterized in that: The bottom shell has second buckles on both sides of the cable outlet groove, and the edge of the panel has a groove that cooperates with the second buckles. The two sides of the panel have groove covers that cooperate with the cable outlet groove on the bottom shell. The second buckles are engaged in the grooves, and the groove covers press the cable into the cable outlet groove.

6. The LED decorative light string with uniform light emission according to claim 3, characterized in that: The bottom shell edge is provided with mounting holes on one side of the cable outlet groove.

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