A string of LED tiles

Abstract

The utility model relates to the technical field of lamps and lanterns discloses a lamp string of LED patch, including lamp string wire, the lamp string wire is connected with a plurality of LED patch lamps and lanterns, and the LED patch lamps and lanterns include lamp stand, the lower end of lamp stand is connected with bubble shell, the upper end of lamp stand is connected with end cover, and lamp stand has the accommodating cavity that passes through up and down, and the accommodating cavity is provided with LED patch subassembly, and the lamp string wire is electrically connected with LED patch subassembly, the utility model has the following advantages: 1, simple structure, low manufacturing cost, 2, high protection performance, 3, high assembling production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a string of LED chips. Background Technology

[0002] With the rapid development of LED technology, string lights have become widely used in decorative lighting, landscape lighting, and festive atmosphere creation due to their advantages such as energy saving, long lifespan, and rich colors. Traditional string lights typically use series or parallel connections to link multiple LED beads, and guide the current to each light-emitting node through branch wires, as shown in Chinese Patent CN222760737U. However, such string lights have complex structures and high manufacturing costs. Furthermore, traditional string lights require additional branch wires and connecting components, leading to increased material costs, cumbersome assembly processes, and low production efficiency. In light of these issues, the inventors have developed a new invention. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an LED patch light string that has the advantages of low manufacturing cost and easy assembly.

[0004] To achieve the above objectives, this utility model provides an LED chip light string, including a light string wire, one end of which is connected to a plug. The light string wire is connected to multiple LED chip lights, each LED chip light including a lamp holder. The lower end of the lamp holder is connected to a bulb, and the upper end of the lamp holder is connected to an end cap. The lamp holder has a through cavity along its central axis, and an LED chip assembly is disposed in the cavity. The light string wire is electrically connected to the LED chip assembly, and at least a light-emitting portion of the LED chip assembly extends into the bulb.

[0005] Furthermore, the LED patch assembly includes a housing and a light-emitting unit, the housing having a recess for mounting the light-emitting unit, and the housing having at least a transparent portion corresponding to the light-emitting unit.

[0006] Furthermore, the light string wire is provided with a bent portion that extends into the recess, and the bent portion is electrically connected to the light-emitting unit.

[0007] Furthermore, the light-emitting unit includes a first connecting plate, the upper surface of which is provided with a plurality of connecting ends, the light string wires being electrically connected to the connecting ends, and the lower surface of the first connecting plate being provided with LED beads.

[0008] Furthermore, the light-emitting unit includes a first connecting plate and a second connecting plate. The upper surface of the first connecting plate is provided with a plurality of connecting ends. The light string wires are electrically connected to the connecting ends. The first connecting plate and the second connecting plate are stacked and spaced apart. The lower surface of the second connecting plate is provided with LED beads. The first connecting plate and the second connecting plate are electrically connected.

[0009] Furthermore, the sink is also provided with a filler adhesive for sealing the light-emitting unit.

[0010] Furthermore, a limiting block is provided inside the housing near the transparent part, and the limiting block abuts against the light-emitting unit, so that a gap is created between the LED lamp bead and the transparent part.

[0011] Furthermore, the accommodating cavity is provided with a stepped portion, and the housing is provided with an annular protrusion. The lower surface of the annular protrusion mates with the stepped portion, and the upper surface of the annular protrusion abuts against the end cap.

[0012] Furthermore, the housing has a first split shell and a second split shell, the second split shell being a transparent shell, and the second split shell can be snapped onto the first split shell or onto the light-emitting unit.

[0013] Furthermore, the lamp holder is provided with a first annular slot on its exterior, and the end cap can be inserted into the first annular slot to be limited and connected to the lamp holder. The upper end of the lamp holder is provided with a positioning port, and the end cap is provided with a positioning block that is positioned and connected to the positioning port.

[0014] Furthermore, multiple light string wires are arranged side by side, and the end cap and the lamp holder cooperate to form a fixing hole for fixing the light string wires. At least two fixing holes are provided to allow the light string wires to enter and exit the lamp holder. The fixing holes are provided with grooves for separating the light string wires.

[0015] Furthermore, the lower end of the lamp holder is provided with a second annular slot, and the bulb is provided with an annular insertion part. After the annular insertion part is inserted into the second annular slot, the bulb can be tightly connected to the lamp holder.

[0016] Beneficial Effects: Compared with the prior art, the present invention provides an LED chip light string, including a light string wire, one end of which is connected to a plug. The light string wire connects to multiple LED chip lights, each LED chip light including a lamp holder. The lower end of the lamp holder is connected to a bulb, and the upper end of the lamp holder is connected to an end cap. The lamp holder has a through-cavity along its central axis, and an LED chip assembly is disposed within the cavity. The light string wire is electrically connected to the LED chip assembly, and at least one light-emitting portion of the LED chip assembly extends into the bulb. The present invention has the following advantages: 1. Multiple LED chip assemblies and wires are connected in parallel to form the lighting nodes of the light string, saving branch wires, bulb metal heads, and other components, resulting in a simple structure and low manufacturing cost; 2. The LED chip assembly has a housing, with the light-emitting unit placed inside, providing high protection; 3. The LED chip assembly is fixedly connected to the wire. Assembly is completed by placing the LED chip assembly into the lamp holder and then attaching the end cap and bulb, resulting in high production efficiency for light string assembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the light string of this utility model.

[0018] Figure 2 This is a partial structural exploded view of the present invention.

[0019] Figure 3 This is an exploded view of a partial structure of the LED chip lamp of this utility model.

[0020] Figure 4 This is a schematic diagram of the lamp holder structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the end cap structure of this utility model.

[0022] Figure 6 This is an exploded view of the LED patch assembly structure of this utility model.

[0023] Figure 7 This is a cross-sectional view of the LED patch assembly structure of this utility model.

[0024] Figure 8 This is a schematic diagram of the light-emitting unit structure of this utility model.

[0025] Figure 9 This is a schematic diagram of the first and second split shells of this utility model.

[0026] The reference numerals in the figures include:

[0027] String LED wire--1, Plug--11, Bend--111, LED SMD luminaire--2, Lamp holder--21, End cap--22, Receiving cavity--23, Step--24, First annular slot--25, Positioning port--26, Positioning block--27, Second annular slot--28, Bulb--3, Annular connector--31, LED SMD assembly--4, Housing--41, Recessed groove-- 411, First split shell--412, Second split shell--413, Limiting block--414, Light-emitting unit--42, First connecting plate--421, Second connecting plate--422, Connecting end--423, LED lamp bead--424, Electrical connector--425, Transparent part--43, Filler glue--44, Annular protrusion--45, Fixed hole--5, Wire groove--51, Central axis--X. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1 to 9 This utility model will be described in detail.

[0029] This utility model discloses an LED chip light string, comprising a light string conductor 1. One end of the light string conductor 1 is connected to a plug 11, which is generally a male plug, for connecting to a power source to energize the light string. The other end of the light string conductor 1 can be connected to a female plug, which can be plugged into the male plug to interconnect the circuits of the two light string conductors 1, so as to facilitate the use of multiple light strings in series, thereby realizing the connection of two or more such light strings to form an extension. The light string conductor 1 is connected to multiple LED chip lamps 2. The LED chip lamps 2 include a lamp holder 21. The lower end of the lamp holder 21 is connected to a bulb shell 3, and the upper end of the lamp holder 21 is connected to an end cap 22. The lamp holder 21 has a vertically penetrating accommodating cavity 23 along its central axis X. An LED chip assembly 4 is disposed in the accommodating cavity 23. The light string conductor 1 is electrically connected to the LED chip assembly 4, and at least a light-emitting portion of the LED chip assembly 4 extends into the bulb shell 3. In this design, compared to traditional string lights, the LED patch assemblies 4 are attached to the conductive parts of the string wires 1. Multiple LED patch assemblies 4 are connected in parallel with the string wires 1 to form the lighting nodes of the string. This eliminates the need for traditional components such as metal bulb bases, threaded metal bulb bases, and branch wires that conduct current from the string wires 1. The structure is simple and the manufacturing cost is low. During string assembly, the LED patch assemblies 4 are first fixedly connected to the wires, then the LED patch assemblies 4 are placed into the lamp holder 21, and the end cap 22 and bulb shell 3 are then fastened to complete the assembly. The string assembly is fast and the production efficiency is high.

[0030] The LED patch assembly 4 includes a housing 41 and a light-emitting unit 42. The housing 41 has a recess 411 for mounting the light-emitting unit 42. The housing 41 has at least a transparent portion 43 corresponding to the light-emitting unit 42. When the LED patch assembly 4 is assembled into the receiving cavity 23, the transparent portion 43 extends through the lower opening of the receiving cavity 23 into the bulb 3. The housing 41 and the light-emitting unit 42 constitute the LED patch assembly 4. The light emitted by the light-emitting unit 42 can penetrate the transparent portion 43, causing the bulb 3 to emit light, thereby illuminating the LED patch lamp 2.

[0031] The string light conductor 1 is provided with a bent portion 111 extending into the recess 411, and the bent portion 111 is electrically connected to the light-emitting unit 42. The bent portion 111 includes at least the portion of the string light conductor 1 with the core exposed after the insulation is peeled off, so that the light-emitting unit 42 can be attached to the core to form a parallel circuit. After the LED patch assembly 4 is assembled into the receiving cavity 23, the bending position of the bent portion 111 can limit the movement with the lamp holder 21. When the string light conductor 1 is pulled by an external force, the bent portion 111 can provide a certain resistance to resist the pulling force, thereby improving the connection strength and stability between the string light conductor 1 and the LED patch assembly 4.

[0032] Multiple LED string wires 1 are arranged side by side. The end cap 22 and the lamp holder 21 cooperate to form a fixing hole 5 for fixing the LED string wires 1. At least two fixing holes 5 are provided to allow the LED string wires 1 to enter and exit the lamp holder 21. The fixing holes 5 are provided with grooves 51 for separating the LED string wires 1. In order to improve the sealing performance of the lamp holder 21, the shape of the fixing hole 5 matches the rubber of the LED string wires 1. The fixing hole 5 is preferably circular. With this shape, if the outer rubber of the LED string wires 1 is irregular, the circular fixing hole 5 can more effectively hold the LED string wires 1, so that the LED string wires 1 are fixed in the positioning hole. At least two LED string wires 1 are arranged side by side, and the two LED string wires 1 conduct two-stage circuits to the light-emitting unit 42. Preferably, in this technical solution, three LED string wires 1 are arranged side by side, namely two-stage wires for transmitting two-stage circuits and control wires for transmitting control signals to control the light-emitting unit 42. Both the end cap 22 and the lamp holder 21 are provided with multiple wire grooves 51, which are arranged side by side and the number of wire grooves 51 is the same as the number of LED string wires 1. During assembly, the LED chip assembly 4 connected with the LED string wires 1 is first placed into the receiving cavity 23 from the upper end of the lamp holder 21. The LED string wires 1 are placed in the wire grooves 51 of the lamp holder 21 for positioning. Then, the end cap 22 is assembled onto the lamp holder 21. The end cap 22 and the lamp holder 21 cooperate to fix the LED string wires 1 and the LED chip assembly 4, and the assembly of the LED chip lamp 2 is completed. During the assembly process, the bulb shell 3 can be pre-assembled into the lamp holder 21, saving assembly steps and improving assembly speed.

[0033] The light-emitting unit 42 includes a first connecting plate 421. Multiple connecting terminals 423 are provided on the upper surface of the first connecting plate 421. The light string wires 1 are electrically connected to the connecting terminals 423. LED beads 424 are provided on the lower surface of the first connecting plate 421. Each connecting terminal 423 is electrically connected to a single light string wire 1. When two connecting terminals 423 are connected to two light string wires 1, the two light string wires 1 provide two-stage circuitry to make the LED beads 424 emit light. When three connecting terminals 423 are connected to three light string wires 1, two of the light string wires 1 provide two-stage circuitry to make the LED beads 424 emit light, while the other light string wire 1 can provide a control signal to change the color, flashing frequency, etc., of the LED beads 424, thereby enhancing the ambiance of the light string.

[0034] The light-emitting unit 42 includes a first connecting plate 421 and a second connecting plate 422. The upper surface of the first connecting plate 421 is provided with multiple connecting ends 423. The light string wire 1 is electrically connected to the connecting ends 423. The first connecting plate 421 and the second connecting plate 422 are stacked and spaced apart. The lower surface of the second connecting plate 422 is provided with LED beads 424. The first connecting plate 421 and the second connecting plate 422 are electrically connected. In this design, an electrical connector 425 is provided between the first connecting plate 421 and the second connecting plate 422. The electrical connector 425 can be a conductive component such as a resistor. The light string wire 1 supplies power to the first connecting plate 421, and the first connecting plate 421 supplies power to the second connecting plate 422 through the electrical connector 425, thereby causing the LED beads 424 to emit light. In this structure, the LED beads 424 illuminate a cold light source, which usually does not generate much heat. The first connecting plate 421 is a printed circuit board, and its electrolytic copper foil or rolled copper foil will generate heat during the current conduction process. By setting a stacking interval between the first connecting plate 421 and the second connecting plate 422, the impact of the heat generated by the first connecting plate 421 on the LED beads 424 can be reduced, thereby improving the service life of the LED beads 424.

[0035] The recess 411 is also provided with a filler adhesive 44 for sealing the light-emitting unit 42. The housing 41 is inserted into the receiving cavity 23 from the upper end of the lamp holder 21, and the transparent part 43 extends from the lower end of the receiving cavity 23 to the bulb shell 3. The recess 411 has a certain depth, and the light-emitting unit 42 is disposed at the bottom of the recess 411. By filling the recess 411 with the filler adhesive 44, the light-emitting unit 42 can be fixed at the bottom of the recess 411, and at the same time, the bent part 111 of the lamp string wire 1 is fixed in the recess 411. Preferably, the filler adhesive 44 can be made of modified epoxy resin or silicone. During assembly: Method 1, place the light-emitting unit 42 in the recess 411, then insert the bent portion 111 of the lamp string wire 1 into the recess 411, making the bent portion 111 electrically contact the connecting end 423 of the first connecting plate 421, and finally fill with the filler adhesive 44 and allow it to cool and cure. Method 2, fix the connecting end 423 of the first connecting plate 421 to the bent portion 111 of the lamp string wire 1 using welding or screws, then place the light-emitting unit 42 in the recess 411, and finally fill with the filler adhesive 44 and allow it to cool and cure. This method provides a more stable connection between the lamp string wire 1 and the light-emitting unit 42. Filling the recess 411 with the filler adhesive 44 not only fixes the light-emitting unit 42 but also prevents moisture from affecting it, resulting in high stability and a long service life.

[0036] A limiting block 414 is provided inside the housing 41 near the transparent part 43. The limiting block 414 abuts against the light-emitting unit 42, creating a gap between the LED bead 424 and the transparent part 43. The gap between the LED bead 424 and the transparent part 43 allows the light emitted by the LED bead 424 to have a refraction space, which can expand the illumination angle of the light and make the light more evenly illuminate the bulb 3.

[0037] The accommodating cavity 23 is provided with a stepped portion 24, and the housing 41 is provided with an annular protrusion 45. The lower surface of the annular protrusion 45 mates with the stepped portion 24, and the upper surface of the annular protrusion 45 abuts against the end cap 22. After the housing 41 is placed into the accommodating cavity 23, the lower surface of the annular protrusion 45 abuts against the stepped portion 24 to form a limit, thereby restricting the depth of the housing 41 placed into the accommodating cavity 23. After the end cap 22 is connected to the lamp holder 21, the end cap 22 abuts against the upper surface of the annular protrusion 45 to fix the housing 41 and prevent the housing 41 from loosening.

[0038] More specifically, the lamp holder 21 has a first annular slot 25 on its exterior. The end cap 22 can be inserted into the first annular slot 25 and connected to the lamp holder 21 for positioning. The upper end of the lamp holder 21 has a positioning port 26, and the end cap 22 has a positioning block 27 that is positioned and connected to the positioning port 26. When the end cap 22 is connected to the lamp holder 21, the lower end of the end cap 22 is inserted into the first annular slot 25 to form a sealing structure, which also restricts the position of the end cap 22 and prevents the end cap 22 from being excessively squeezed during assembly or use, which could cause the wire hole 5 to be too small and damage the lamp string wire 1. When the end cap 22 is assembled to the lamp holder 21, the positioning block 27 first aligns with the position of the positioning port 26 to ensure that the end cap 22 can be correctly connected to the lamp holder 21. After the end cap 22 is assembled to the lamp holder 21, the lower end of the positioning block 27 can abut against the upper surface of the annular protrusion 45 to fix the housing 41.

[0039] To allow the light from the light-emitting unit 42 to exit the housing 41, the housing 41 can be entirely or partially transparent. In this design, the housing 41 has a first split housing 412 and a second split housing 413. The second split housing 413 is transparent and can be snapped onto the first split housing 412 or the light-emitting unit 42. After filling with filler adhesive 44 and curing, the light-emitting unit 42 cannot be removed from the housing 41 through normal means. In this design, by configuring the housing 41 as a combination of the first split housing 412 and the second split housing 413, the second split housing 413 can be opened to remove the light-emitting unit 42 from the housing 41. Alternatively, during assembly, the bent portion 111 of the LED string wire 1 can be fixed at a designated position within the first split housing 412 using filler adhesive 44, and then the second split housing 413 can be connected to the light-emitting unit 42. This method allows the LED patch assembly 4 to form a modular assembly structure, resulting in higher production assembly efficiency and facilitating automated assembly.

[0040] The lower end of the lamp holder 21 is provided with a second annular slot 28, and the bulb shell 3 is provided with an annular insertion part 31. After the annular insertion part 31 is inserted into the second annular slot 28, the bulb shell 3 and the lamp holder 21 can be tightly connected. The second annular slot 28 is elastic, and the width of the second annular slot 28 is smaller than the thickness of the annular insertion part 31. When the bulb shell 3 is connected to the lamp holder 21, the annular insertion part 31 is pushed open and inserted into the second annular slot 28, so that the bulb shell 3 and the lamp holder 21 are connected and fixed, forming a sealed connection with waterproof performance. Compared with the threaded connection method, the connection method between the bulb shell 3 and the lamp holder 21 in this technical solution is simpler and the assembly speed is faster.

[0041] The string light conductor 1 is connected to multiple LED chip lights 2. It is preferred, but not the only option, for the string light to be connected in parallel with the string light conductor 1 to form the lighting node of the string light. Multiple LED chip components 4 can also be connected to the string light conductor 1 to form a series circuit.

[0042] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this invention. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A LED chip light string, comprising a light string conductor (1), one end of which is connected to a plug (11), wherein the light string conductor (1) is connected to a plurality of LED chip lamps (2), characterized in that: The LED chip lamp (2) includes a lamp holder (21), the lower end of which is connected to a bulb (3), and the upper end of which is connected to an end cap (22). The lamp holder (21) has a through cavity (23) along its central axis. An LED chip assembly (4) is disposed in the cavity (23). The LED string wire (1) is electrically connected to the LED chip assembly (4). At least one light-emitting part of the LED chip assembly (4) extends into the bulb (3).

2. The LED patch light string according to claim 1, characterized in that: The LED patch assembly (4) includes a housing (41) and a light-emitting unit (42). The housing (41) has a recess (411) for mounting the light-emitting unit (42). The housing (41) has at least a transparent portion (43) corresponding to the light-emitting unit (42).

3. The LED patch light string according to claim 2, characterized in that: The light string wire (1) is provided with a bent portion (111) that extends into the sink (411), and the bent portion (111) is electrically connected to the light-emitting unit (42).

4. The LED patch light string according to claim 2, characterized in that: The light-emitting unit (42) includes a first connecting plate (421), the upper surface of the first connecting plate (421) is provided with a plurality of connecting ends (423), the light string wire (1) is electrically connected to the connecting ends (423), and the lower surface of the first connecting plate (421) is provided with LED beads (424).

5. The LED patch light string according to claim 2, characterized in that: The light-emitting unit (42) includes a first connecting plate (421) and a second connecting plate (422). The upper surface of the first connecting plate (421) is provided with a plurality of connecting ends (423). The light string wire (1) is electrically connected to the connecting ends (423). The first connecting plate (421) and the second connecting plate (422) are stacked and spaced apart. The lower surface of the second connecting plate (422) is provided with LED beads (424). The first connecting plate (421) and the second connecting plate (422) are electrically connected.

6. The LED patch light string according to claim 2, characterized in that: The sink (411) is also provided with a filler adhesive (44) for sealing the light-emitting unit (42).

7. The LED patch light string according to claim 2, characterized in that: The cavity (23) is provided with a stepped portion (24), and the shell (41) is provided with an annular protrusion (45). The lower surface of the annular protrusion (45) cooperates with the stepped portion (24), and the upper surface of the annular protrusion (45) abuts against the end cap (22).

8. A string of LED chips according to claim 2, characterized in that: The housing (41) has a first split shell (412) and a second split shell (413), the second split shell (413) is a transparent shell, and the second split shell (413) can be snapped into the first split shell (412) or into the light-emitting unit (42).

9. A string of LED chips according to claim 1, characterized in that: The lamp holder (21) is provided with a first annular slot (25) on the outside. The end cap (22) can be inserted into the first annular slot (25) and limited to the lamp holder (21). The upper end of the lamp holder (21) is provided with a positioning port (26), and the end cap (22) is provided with a positioning block (27) that is positioned and connected to the positioning port (26).

10. A string of LED chips according to any one of claims 1 to 9, characterized in that: The string of lights (1) consists of multiple wires arranged side by side. The end cap (22) and the lamp holder (21) cooperate to form a fixing hole (5) for fixing the string of lights (1). There are at least two fixing holes (5) to allow the string of lights (1) to enter and exit the lamp holder (21). The fixing hole (5) is provided with a groove (51) for separating the string of lights (1).

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