A sealed waterproof LED light string structure

Abstract

The utility model relates to lamp technical field discloses a sealed waterproof LED lamp string structure, including serially connected conducting wire, and the serially connected conducting wire is connected with a plurality of lamp stand, and the lamp stand is detachably connected with LED bulb, the lamp stand has seat body, and the seat body has the accommodation cavity and annular sealing groove, and the seat body is provided with the linear recess that intersects with annular sealing groove, and the lamp stand still has end cap, and the end cap is buckled with seat body and exerts pressure to serially connected conducting wire to keep linear recess formation end seal, the utility model has the following advantages: after the serially connected conducting wire is connected into linear recess, through annular sealing groove point gum or insert into special-shaped sealing ring cooperation end cap exerts pressure can make the sealing of one end of the wiring of lamp stand, the inner chamber of lamp stand can be sealed after installing the bulb, makes the lamp stand completely closed, can perfect barrier rainwater etc. and permeate to the inside of lamp stand, and the waterproof effect is good.

Description

Technical Field

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

[0002] With the widespread availability of electricity, lighting fixtures have become commonplace in homes. People are no longer limited to using lighting fixtures for ordinary illumination; they increasingly prefer to use them to create different atmospheres. For example, they might string together lights of different colors and fix them to artificial trees, walls, fences, ceilings, and other locations. However, existing light string holders have poor waterproofing. For instance, the outdoor light holder structure disclosed in US Patent US2020132281A1 has poor sealing, allowing moisture to easily enter the holder during outdoor use, affecting performance and shortening the lifespan of the string. While this method uses drainage to prevent water accumulation, water can still enter the holder, and whether the water can drain effectively depends on the weather and the holder's placement. Furthermore, Chinese patent number CN202011227378.7 also discloses a lamp holder structure. This prior art forms a waterproof and sealed coating layer by reusing the entire exterior of the lamp holder. However, this waterproof and sealed coating layer can only solve the problem of water entering the wire end of the lamp holder. There is still a possibility of water entering at the bulb mounting end. Moreover, this fully enclosed structure not only increases the volume of the lamp holder, but also requires a large amount of coating material, resulting in higher costs.

[0003] In view of this, the inventor made a new invention. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a sealed and waterproof LED light string structure, which has the advantage of being sealed and waterproof.

[0005] To achieve the above objectives, this utility model provides a sealed and waterproof LED light string structure, including a series wire, one end of which is connected to a plug and the other end to a socket. The series wire is connected to multiple sealed and waterproof lamp holders, and each lamp holder is detachably connected to an LED bulb.

[0006] Multiple lamp holders are spaced apart and located between the plug and the socket;

[0007] The lamp holder has a base body, the base body has an accommodating cavity and an annular sealing groove, the base body is provided with a linear groove intersecting the annular sealing groove, the annular sealing groove is filled with a first sealing element, and the serial wire passes through the linear groove and is located above the first sealing element.

[0008] The lamp holder also has an end cap that is snapped onto the body of the holder and applies pressure to the series wires to maintain a linear groove forming an end seal.

[0009] A second sealing element is also provided between the lamp holder and the LED bulb. The LED bulb is threadedly connected to the lamp holder to apply pressure to the second sealing element to form a seal.

[0010] Furthermore, the annular sealing groove includes a first arc-shaped segment, a first recessed segment, a second arc-shaped segment, and a second recessed segment connected in sequence, with the first recessed segment and the second recessed segment corresponding to the linear groove.

[0011] Furthermore, the annular sealing groove includes a first arc-shaped segment, a first recessed segment, a second arc-shaped segment, and a second recessed segment connected in sequence. The first recessed segment and the second recessed segment correspond to the linear groove. When the series wire is located in the linear groove, its surface is at least flush with or extends beyond the upper surface of the first arc-shaped segment.

[0012] Furthermore, the annular sealing groove is filled with a surface seal, and the connecting wire is located between the first seal and the surface seal.

[0013] Furthermore, the lamp holder is provided with a waterproof groove, and the second sealing element is snapped and fixed to the waterproof groove.

[0014] Furthermore, the LED bulb includes a bulb shell, and a retaining ring is provided at the neck of the bulb shell, with the second sealing member disposed on the retaining ring.

[0015] Furthermore, the lamp holder has a first electrical connecting piece and a second electrical connecting piece. The first connecting piece is disposed on one side of the accommodating cavity and has a first pointed protrusion that inserts into the linear groove. The second electrical connecting piece is disposed at the bottom of the accommodating cavity and has a second pointed protrusion that inserts into the linear groove.

[0016] Furthermore, the end cap includes a cover plate, a pin, and a wire pressing protrusion. The pin is inserted and fixed to the seat body, and the cover plate abuts against the first sealing element, while the wire pressing protrusion abuts against the serial wire in the wire groove.

[0017] Furthermore, the LED bulb includes a metal lamp holder, a bulb shell, and a light-emitting unit disposed inside the bulb shell and electrically connected to the metal lamp holder. The metal lamp holder has threads, and the inner wall of the accommodating cavity is provided with a connecting part that matches the metal lamp holder.

[0018] Furthermore, the first sealing element is an adhesive dot or a shaped sealing ring, and the first sealing element protrudes an annular sealing groove to facilitate mating with the end cap to form an end seal.

[0019] Beneficial Effects: Compared with the prior art, the present invention provides a sealed and waterproof LED light string structure, including a series wire connected to multiple lamp holders, each lamp holder detachably connected to an LED bulb; the lamp holder has a base body with an accommodating cavity and an annular sealing groove, and the base body is provided with a linear groove intersecting the annular sealing groove; the lamp holder also has an end cap, which is snapped onto the base body and applies pressure to the series wire to maintain the linear groove forming an end seal; the present invention has the following advantages: after the series wire is connected to the linear groove, the wiring end of the lamp holder can be sealed by applying adhesive to the annular sealing groove or inserting a special-shaped sealing ring in conjunction with the pressure applied by the end cap; after the bulb is installed in the lamp holder, the inner cavity of the lamp holder can be sealed, making the lamp holder completely sealed, which can perfectly prevent rainwater and other substances from penetrating into the lamp holder, resulting in good waterproof performance. Attached Figure Description

[0020] Figure 1 This is a partial structural diagram of the light string of this utility model.

[0021] Figure 2 This is an exploded view of the lamp holder structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the end structure of the base body of this utility model.

[0023] Figure 4 This is a schematic diagram of the end cap structure of this utility model.

[0024] Figure 5 This is a cross-sectional schematic diagram of the base body of this utility model.

[0025] Figure 6 This is a schematic diagram of the connection between the series wire and the linear groove of this utility model.

[0026] Figure 7 This is an exploded view of the LED bulb structure of this utility model.

[0027] Figure 8 This is a schematic diagram of the waterproof groove structure of this utility model.

[0028] The reference numerals in the figures include:

[0029] Series wire--1, plug--11, socket--12, lamp holder--2, first electrical connector--201, second electrical connector--202, first pointed protrusion--203, second pointed protrusion--204, base body--21, plug interface--211, accommodating cavity--22, connecting part--221, annular sealing groove--23, first arc-shaped segment--231, first recessed segment--232, second arc-shaped segment--233, second recessed segment-- -234, Linear Groove--24, First Seal--25, End Cap--26, Cover Plate--261, Pin--262, Pressure Line Protrusion--263, Hanging Ear--264, Hook--265, Surface Seal--27, Waterproof Groove--28, Inverted Part--281, Flared Part--29, LED Bulb--3, Second Seal--31, Snap Ring--32, Metal Lamp Holder--33, Bulb Shell--34, Light-Emitting Unit--35. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1 to 8 This utility model will be described in detail.

[0031] This utility model discloses a sealed and waterproof LED light string structure, including a series wire 1. One end of the series wire 1 is connected to a plug 11, and the other end is connected to a socket 12. After the plug 11 is plugged into a power supply device, the series wire 1 is energized. Multiple series wires 1 can be connected in series by plugging the plug 11 into the socket 12 of another series wire 1. The series wire 1 is connected to multiple sealed and waterproof lamp holders 2. The lamp holders 2 are detachably connected to LED bulbs 3. Here, the LED bulbs 3 are bulbs with complete light-emitting units, metal lamp heads, and transparent shells. Multiple lamp holders 2 with LED bulbs 3 are connected to the series wire 1 to form a light string structure.

[0032] Multiple lamp holders 2 are spaced apart and located between the plug 11 and the socket 12. Preferably, the multiple lamp holders 2 are connected in parallel to make the circuit of the entire lamp string more independent and avoid the situation where the entire lamp string does not light up due to the disconnection of a single lamp holder.

[0033] The lamp holder 2 has a base body 21, which has an accommodating cavity 22 and an annular sealing groove 23. The base body 21 is provided with a linear groove 24 that intersects with the annular sealing groove 23. The annular sealing groove 23 is filled with a first sealing element 25. The serial wire 1 passes through the linear groove 24 and is located above the first sealing element 25. Since the linear groove 24 intersects with the annular sealing groove 23, the first sealing element 25 is continuously filled. After the first sealing element 25 is filled, a portion of it will pass through the linear groove 24. After the serial wire 1 is placed into the linear groove 24, one end face of the serial wire 1 will abut against the first sealing element 25, so that the two ends of the linear groove 24 achieve an inner and outer seal.

[0034] As one embodiment of the annular sealing groove 23, the annular sealing groove 23 includes a first arc-shaped segment 231, a first recessed segment 232, a second arc-shaped segment 233, and a second recessed segment 234 connected in sequence. The first recessed segment 232 and the second recessed segment 234 correspond to the linear groove 24. In this design, the annular sealing groove 23 is an irregularly shaped structure with a height difference. The first arc-shaped segment 231 and the second arc-shaped segment 233 are located at the top of the seat body 21. The first recessed segment 232 and the second recessed segment 234 are U-shaped. The bottom grooves of the first recessed segment 232 and the second recessed segment 234 correspond to the bottom of the linear groove 24. The side grooves of the first recessed segment 232 and the second recessed segment 234 correspond to the side walls of the linear groove 24. After the annular sealing groove 23 is filled with the first sealing element 25, when the connecting wire 1 is inserted, the connecting wire 1 abuts against the first sealing element 25 filled by the first recessed segment 232 and the second recessed segment 234, so that the bottom and sides of the two ends of the linear groove 24 are sealed.

[0035] The lamp holder 2 also has an end cap 26, which is fastened to the holder body 21 and applies pressure to the serial wire 1 to maintain the linear groove 24 to form an end seal. After the serial wire 1 is inserted into the linear groove 24, the end cap 26 is assembled on the holder body 21. The pressure applied by the end cap 26 and the sealing of the two ends of the linear groove 24 by the first sealing member 25 make the linear groove 24 completely sealed.

[0036] See Figure 4 The end cap 26 includes a cover plate 261, a pin 262, and a pressure strip 263. The pin 262 is inserted and fixed to the seat body 21, causing the cover plate 261 to abut against the first sealing element 25 and the pressure strip 263 to abut against the serial wire 1 in the linear groove 24. The seat body 21 is provided with a plug interface 211. The end of the pin 262 has a barb. After the pin 262 is inserted into the plug interface 211, the barb will lock onto the end face of the plug interface 211 on the other side to form a limit, thereby connecting and fixing the end cap 26 to the seat body 21. The width of the pressure strip 263 corresponds to the width of the linear groove 24, see [reference]. Figure 4 The pressure strip 263 has protruding structures on both sides of the end face that applies pressure to the series wire 1. After the end cover 26 is installed, the pressure strip 263 continues to apply pressure to the series wire 1, and the pressure strip 263 also abuts against the first sealing member 25, so that the two ends of the linear groove 24 are completely sealed.

[0037] As another embodiment of the annular sealing groove 23, the annular sealing groove 23 includes a first arc-shaped segment 231, a first recessed segment 232, a second arc-shaped segment 233 and a second recessed segment 234 connected in sequence. The first recessed segment 232 and the second recessed segment 234 correspond to the linear groove 24. When the series wire 1 is located in the linear groove 24, the surface is at least flush with or extends beyond the upper surface of the first arc-shaped segment 231. The annular sealing groove 23 is an irregularly shaped structure with a height difference. The first arc segment 231 and the second arc segment 233 are located at the top of the seat body 21. The first recessed segment 232 and the second recessed segment 234 are U-shaped. The bottom grooves of the first recessed segment 232 and the second recessed segment 234 correspond to the bottom of the linear groove 24. The side grooves of the first recessed segment 232 and the second recessed segment 234 correspond to the side walls of the linear groove 24. After the annular sealing groove 23 is filled with the first sealing element 25, when the serial wire 1 is inserted, the serial wire 1 abuts against the first sealing element 25 filled by the first recessed segment 232 and the second recessed segment 234, so that the bottom and sides of the two ends of the linear groove 24 are sealed. The diameter of the cover plate 261 is larger than the diameter of the annular sealing groove 23. After the end cover 26 is assembled, the cover plate 261 will abut against the first sealing element 25 filled in the first arc segment 231 and the second arc segment 233, so that the top of the seat body 21 is sealed, preventing rainwater or water vapor from entering the linear groove 24 or the interior of the seat body 21 from the gap between the end cover 26 and the seat body 21.

[0038] The end cap 26 is provided with a hanging ear 264. The hanging ear 264 is a curved strip with a certain degree of elasticity. After the end cap 26 is installed on the base body 21, a part of the hanging ear 264 will abut against the base body 21, so that there is a hanging hole between the hanging ear 264 and the base body 21, so that the light string can be hung on the rope, thin rod or other objects for use.

[0039] A second sealing element 31 is also provided between the lamp holder 2 and the LED bulb 3. The LED bulb 3 is threadedly connected to the lamp holder 2 to apply pressure to the second sealing element 31 to form a seal. After the LED bulb 3 is installed, the lamp holder 2 is completely sealed under the action of the first sealing element 25 and the second sealing element 31, which can perfectly prevent rainwater and water vapor from penetrating into the interior of the lamp holder 2, and has a good waterproof effect.

[0040] In one embodiment of the installation of the second sealing element 31, the lamp holder 2 is provided with a waterproof groove 28, and the second sealing element 31 is snapped and fixed in the waterproof groove 28. The waterproof groove 28 is located near the opening end of the accommodating cavity 22. The second sealing element 31 is a sealing rubber ring, which is placed inside the waterproof groove 28. After the LED bulb 3 is installed, it abuts against the second sealing element 31, thereby closing the opening end of the accommodating cavity 22 and sealing the lamp holder 2. In this embodiment, regardless of the shape of the LED bulb 3, sealing is completed by the LED bulb 3 abutting against the second sealing element 31 after installation. When using this type of light string, the LED bulbs are usually already installed. However, in some cases, such as when an LED bulb malfunctions, it is necessary to replace the LED bulb. Therefore, the inventors provided an inverted part 281 in the waterproof groove 28. During assembly, after the second sealing element 31 is installed in the waterproof groove 28, the second sealing element 31 is always confined in the waterproof groove 28 and will not fall off due to the action of the inverted part. Experiments have shown that the function of this inverted part is beneficial.

[0041] In another embodiment of the installation of the second sealing element 31, the LED bulb 3 includes a bulb shell 34, and a retaining ring 32 is provided at the neck of the bulb shell 34. The second sealing element 31 is disposed on the retaining ring 32. In this solution, the second sealing element 31 is a sealing rubber ring, and the second sealing element 31 is detachably connected to the LED bulb 3. The opening end of the accommodating cavity 22 is provided with a flared portion 29 in the shape of a flared mouth. After the LED bulb 3 is installed, the second sealing element 31 will abut against the flared portion 29 to seal the lamp holder 2. In this embodiment, the second sealing element 31 of different thicknesses can be used according to the shape of the LED bulb 3 to achieve a perfect sealing effect.

[0042] The annular sealing groove 23 is filled with a surface seal 27, and the connecting wire 1 is located between the first seal 25 and the surface seal 27. The surface seal 27 is formed by dispensing or applying adhesive. After the connecting wire 1 is inserted into the linear groove 24 and abuts against the first seal 25, adhesive is dispensed or applied along the annular sealing groove 23 to form the surface seal 27. After the end cap 26 is assembled, the end cap 26 abuts against the surface seal 27, so that the end of the lamp holder 2 is completely sealed.

[0043] The lamp holder 2 has a first electrical connecting piece 201 and a second electrical connecting piece 202. The first connecting piece is disposed on one side of the accommodating cavity 22 and has a first pointed protrusion 203 that inserts into the linear groove 24. The second electrical connecting piece 202 is disposed at the bottom of the accommodating cavity 22 and has a second pointed protrusion 204 that inserts into the linear groove 24. The series wire 1 consists of at least two insulated wires and is installed after the linear groove 24. The first pointed protrusion 203 and the second pointed protrusion 204 insert into different wires respectively, energizing the first electrical connecting piece 201 and the second electrical connecting piece 202, thereby generating two electrodes inside the lamp holder 2 to facilitate electrical connection between the LED bulb 3 and the lamp holder 2.

[0044] The LED bulb 3 includes a metal lamp holder 33, a bulb shell 34, and a light-emitting unit 35 disposed within the bulb shell 34 and electrically connected to the metal lamp holder 33. The metal lamp holder 33 has threads, and a connecting portion 221 that mates with the metal lamp holder 33 is provided on the inner wall of the accommodating cavity 22. At least one light-emitting unit 35 is provided. The light-emitting unit 35 is electrically connected to the metal lamp holder 33. After the LED bulb 3 is installed in the lamp holder 2, the metal lamp holder 33 engages with the connecting portion 221. At the same time, the threads of the metal lamp holder 33 are also electrically connected to the first electrical connecting piece 201, and the end of the metal lamp holder 33 is electrically connected to the second electrical connecting piece 202, so that the LED bulb 3 is electrically connected to the series wire 1 to form a positive and negative circuit, causing the light-emitting unit 35 to emit light.

[0045] The first sealing element 25 is either a dispensing sealant or a shaped sealing ring. The first sealing element 25 protrudes from the annular sealing groove 23 to facilitate mating with the end cap 26 to form an end seal. The first sealing element 25 can be formed by dispensing liquid sealant and curing it. When the connecting wire 1 and the end cap 26 come into contact with the first sealing element 25, the droplet-shaped first sealing element 25 can fully diffuse, ensuring a complete fit between the first sealing element 25 and the connecting wire 1 and the end cap 26. Considering the assembly of the lamp holder 2, the first sealing element 25 can be a shaped sealing ring. During the assembly of the lamp holder 2, the shaped sealing ring can be directly embedded into the annular sealing groove 23, and the connecting wire 1 and the end cap 26 can be quickly installed, improving the production speed.

[0046] 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 sealed and waterproof LED string structure, comprising a series conductor (1), one end of which is connected to a plug (11) and the other end to a socket (12), characterized in that: The series wire (1) is connected to multiple sealed and waterproof lamp holders (2), and the lamp holders (2) are detachably connected to LED bulbs (3). Multiple lamp holders (2) are spaced apart and located between the plug (11) and the socket (12); The lamp holder (2) has a base body (21), the base body (21) has an accommodating cavity (22) and an annular sealing groove (23), the base body (21) is provided with a linear groove (24) intersecting the annular sealing groove (23), the annular sealing groove (23) is filled with a first sealing element (25), and the serial wire (1) passes through the linear groove (24) and is located above the first sealing element (25); The lamp holder (2) also has an end cap (26), which is fastened to the body (21) and presses against the serial wire (1) to maintain the linear groove (24) forming an end seal; A second sealing element (31) is also provided between the lamp holder (2) and the LED bulb (3). The LED bulb (3) is threadedly connected to the lamp holder (2) to apply pressure to the second sealing element (31) to form a seal.

2. The sealed and waterproof LED string structure according to claim 1, characterized in that: The annular sealing groove (23) includes a first arc segment (231), a first recessed segment (232), a second arc segment (233) and a second recessed segment (234) connected in sequence, with the first recessed segment (232) and the second recessed segment (234) corresponding to the linear groove (24).

3. The sealed and waterproof LED string structure according to claim 1, characterized in that: The annular sealing groove (23) includes a first arc segment (231), a first recessed segment (232), a second arc segment (233), and a second recessed segment (234) connected in sequence. The first recessed segment (232) and the second recessed segment (234) correspond to the linear groove (24). When the series wire (1) is located in the linear groove (24), its surface is at least flush with or extends beyond the upper surface of the first arc segment (231).

4. The sealed and waterproof LED string structure according to claim 1, characterized in that: The annular sealing groove (23) is filled with a surface seal (27), and the connecting wire (1) is located between the first seal (25) and the surface seal (27).

5. The sealed and waterproof LED string structure according to claim 1, characterized in that: The lamp holder (2) is provided with a waterproof groove (28), and the second sealing element (31) is snapped and fixed to the waterproof groove (28).

6. The sealed and waterproof LED string structure according to claim 1, characterized in that: The LED bulb (3) includes a bulb shell (34), and a retaining ring (32) is provided at the neck of the bulb shell (34). The second sealing member (31) is provided at the retaining ring (32).

7. The sealed and waterproof LED string structure according to claim 1, characterized in that: The lamp holder (2) has a first electrical connecting piece (201) and a second electrical connecting piece (202). The first connecting piece is disposed on one side of the accommodating cavity (22), and the first connecting piece is provided with a first pointed protrusion (203) that inserts into the linear groove (24). The second electrical connecting piece (202) is disposed at the bottom of the accommodating cavity (22), and the second electrical connecting piece (202) is provided with a second pointed protrusion (204) that inserts into the linear groove (24).

8. The sealed and waterproof LED string structure according to claim 1, characterized in that: The end cap (26) includes a cover plate (261), a pin (262) and a wire pressing protrusion (263). The pin (262) is inserted and fixed to the seat body (21) and the cover plate (261) abuts against the first sealing element (25), and the wire pressing protrusion (263) abuts against the serial wire (1) in the wire groove (24).

9. The sealed and waterproof LED string structure according to claim 1, characterized in that: The LED bulb (3) includes a metal lamp holder (33), a bulb shell (34), and a light-emitting unit (35) disposed in the bulb shell (34) and electrically connected to the metal lamp holder (33). The metal lamp holder (33) has threads, and the inner wall of the accommodating cavity (22) is provided with a connecting part (221) that matches the metal lamp holder (33).

10. The sealed and waterproof LED string structure according to claim 1, characterized in that: The first sealing element (25) is a dotted or irregularly shaped sealing ring. The first sealing element (25) protrudes from the annular sealing groove (23) to facilitate mating with the end cap (26) to form a seal.

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