Waterproof lamp

Abstract

The waterproof lamp comprises a lamp body, a sealing assembly and a TPU wire rod, the TPU wire rod is arranged at one end of the lamp body, the sealing assembly comprises two plugs, the two plugs wrap the two ends of the lamp body respectively, and one plug further wraps the TPU wire rod. The lamp body is made of TPU materials, silica gel or plastic through the extrusion process, so that the lamp body is of a continuous and uniform structure, gaps generated by processes such as splicing are reduced, and the overall waterproof performance of the lamp is improved; the sealing assemblies are made of TPU materials in an injection molding mode, the sealing assemblies are arranged at the two ends of the lamp body so that the two ends of the lamp body can be sealed through the sealing assemblies, one plug further wraps the connecting position of the TPU wire rod and the lamp body, the waterproof effect of the lamp is further improved, and the waterproof lamp can emit light normally.

Description

Technical Field

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

[0002] In outdoor lighting, bathroom lighting, and other applications, luminaires need to possess excellent waterproof performance to prevent short circuits, damage, and other issues caused by water intrusion, thus affecting their normal use and lifespan. Existing waterproof luminaires mainly employ three methods, all using standard-mount LED chips such as 2216, 2835, or 3838. In the first method, the body is formed by one-piece extrusion of a silicone LED strip. Silicone wire is welded to the head end of the body, and silicone is molded to bond the body and wire together. The tail end of the body is also sealed with molded silicone. In the second method, the LED strip with welded wire is inserted into a silicone sleeve. The head and tail ends of the LED strip are sealed with adhesive plugs, and then silicone glue is poured into the middle of the body to fill the entire silicone sleeve. In the third method, the LED strip with welded wire and TPU plugs at both ends is attached to a U-shaped TPU tube, and then sealed with dripped PU glue. All three methods achieve waterproofing.

[0003] However, light strips using standard LED beads have low torsion resistance. During installation, there may be instances of twisting the product and violent installation, which can damage the light source and prevent it from lighting up properly. Moreover, the mechanical strength and wear resistance of the silicone and PU materials used for the outer shell are not high. During installation, there may be collisions and friction with sharp objects, which can cause the outer shell of the light strip to be scratched or punctured, allowing moisture to enter the light strip. This results in poor waterproofing, leading to short circuit failure and circuit board burnout. Utility Model Content

[0004] This utility model provides a waterproof lamp, which aims to solve the problem that the existing waterproof lamp strips have poor waterproof performance due to the low mechanical strength and wear resistance of their outer shell and materials.

[0005] This utility model provides a waterproof lamp, including a lamp body, a sealing component, and a TPU wire. The TPU wire is disposed at one end of the lamp body. The sealing component includes two plugs, which are respectively wrapped around both ends of the lamp body, and one of the plugs is also wrapped around the TPU wire. The lamp body is formed by extrusion of TPU material, silicone, or plastic, and the sealing component is injection molded from TPU material.

[0006] Specifically, when the lamp body is formed from silicone or plastic through an extrusion process, a protective layer is provided on the lamp body.

[0007] Specifically, the lamp body is provided with a protective layer, which is made of TPU material.

[0008] Specifically, the waterproof lamp also includes a light source assembly disposed on the lamp body.

[0009] Specifically, the light source assembly includes an LED chip and a substrate, with the electrodes of the LED chip flip-chip soldered onto the substrate.

[0010] Specifically, multiple LED beads are arranged and evenly distributed on the substrate, and the LED beads are fixed to the substrate using liquid silicone.

[0011] Specifically, the LED is a COF LED or a CSP LED.

[0012] Specifically, the substrate is a flexible printed circuit board.

[0013] Specifically, the lamp body is provided with a sealant layer at both ends, and the sealing component is located on the outside of the sealant layer.

[0014] Specifically, the sealant layer is formed using one of the following methods: applying glue, pouring glue, molding silicone, or injection molding plastic.

[0015] This utility model provides a waterproof lamp, including a lamp body, a sealing component, and TPU wire. The TPU wire is disposed at one end of the lamp body. The sealing component includes two plugs, which are respectively wrapped around both ends of the lamp body, and one of the plugs is also wrapped around the TPU wire. The lamp body of this embodiment is formed by extrusion of TPU material, silicone, or plastic, resulting in a continuous and uniform structure that reduces gaps caused by splicing and other processes, thereby improving the overall waterproof performance of the lamp. The sealing component is injection molded from TPU material and is disposed at both ends of the lamp body, allowing it to seal both ends. One of the plugs is also wrapped around the connection between the TPU wire and the lamp body, further improving the waterproof effect of the lamp. The waterproof lamp can still emit light normally. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 An exploded view of a waterproof lamp provided for an embodiment of this utility model;

[0018] Figure 2 for Figure 1 Example of the A structure in Figure 1 ;

[0019] Figure 3 for Figure 1 Example of the A structure in Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the light source assembly.

[0021] Explanation of the markings in the image:

[0022] 1. Lamp body; 2. Sealing assembly; 3. Protective layer; 4. Light source assembly; 41. Lamp beads; 42. Substrate; 5. TPU wire. Detailed Implementation

[0023] 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, 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.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] Please see Figure 1This utility model provides a waterproof lamp, including a lamp body 1, a sealing component 2, and a TPU wire 5. The TPU wire 5 is disposed at one end of the lamp body 1. The sealing component 2 includes two plugs, which are respectively wrapped around both ends of the lamp body 1, and one of the plugs is also wrapped around the TPU wire 5. The lamp body 1 is formed by extrusion of TPU material, silicone, or plastic, and the sealing component 2 is injection molded from TPU material.

[0028] In this embodiment, the lamp body 1 is formed through an extrusion process. This process enables the lamp body 1 to have a continuous and uniform structure, reducing gaps caused by splicing and other processes, thereby improving the overall waterproof performance of the lamp. The lamp body 1 can be formed from TPU, silicone, or plastic through an extrusion process. TPU has excellent waterproof performance, as well as high flexibility and strength, making it a suitable material for the lamp body 1. During extrusion, the molecular chains of TPU can arrange themselves in an orderly manner, forming a dense structure that enhances waterproofing. Furthermore, silicone has excellent weather resistance, high and low temperature resistance, and good elasticity, maintaining stable sealing performance under different environmental temperatures. Plastic, on the other hand, has advantages such as low cost and good moldability. Using silicone or plastic to form the lamp body 1 through an extrusion process allows the silicone or plastic material to form a continuous tubular structure in the mold, reducing seams and improving waterproof performance. During operation, when the lamp is affected by the external environment, the silicone or plastic lamp body 1 can effectively resist the erosion of moisture and external factors due to its inherent properties. In practical applications, if high weather resistance is required for waterproof lighting fixtures, silicone material can be selected; if cost is a lower requirement, plastic material can be selected.

[0029] The sealing component 2 is injection molded from TPU (thermoplastic polyurethane elastomer), which has good elasticity, wear resistance, and water resistance. It can tightly adhere to both ends of the lamp body 1, effectively preventing moisture intrusion. In actual production, the mold for the sealing component 2 can be precisely designed according to the size and shape of the lamp body 1 to ensure the fitting accuracy between the sealing component 2 and the lamp body 1. Its working process is as follows: when the lamp is in a humid or wet environment, the sealing component 2, with its own elasticity and good sealing performance, seals both ends of the lamp body 1, preventing moisture from entering the lamp's interior. This structural design achieves the lamp's waterproof function, significantly improving the waterproof effect compared to traditional lamps, and making it widely applicable to outdoor, bathroom, and other humid environments. In specific implementation, the sealing component 2 consists of two plugs, both of which are injection molded and wrapped around both ends of the lamp body 1 to achieve an adhesive seal.

[0030] TPU wire 5 is located at one end of the lamp body and is used to connect to an external power source so that the waterproof lamp can emit light normally. One of the plugs of the sealing component 2 is wrapped around the connection between TPU wire 5 and lamp body 1 to prevent moisture from entering the lamp from the connection and improve the overall waterproofness of the lamp.

[0031] In practical implementation, a stepped nested interface can be designed at the connection between the lamp body 1 and the sealing component 2. The lamp body 1 has concave stepped structures at both ends, while the sealing component 2 has a corresponding convex stepped structure. When installed at both ends of the lamp body 1, the sealing component 2 fits tightly, forming multiple waterproof barriers. Simultaneously, O-ring grooves are added between the stepped surfaces, and the O-rings are installed in these grooves to further enhance the sealing effect. When the lamp is subjected to external water pressure, the O-rings deform under pressure, filling the tiny gaps between the stepped surfaces and effectively preventing water penetration. Compared to simply relying on the sealing component 2 for adhesion, this structure can withstand greater water pressure and maintain good waterproof performance in high humidity or underwater environments.

[0032] In specific implementation, such as Figure 2 As shown, Figure 2 The lamp body 1 is made of TPU material through an extrusion process. In order to create different light emission effects, the lamp body 1 can be extruded in one piece with a single color of TPU material, which is transparent TPU or frosted TPU. It can also be extruded in one piece with two colors of TPU material, which is transparent TPU + milky white TPU or frosted TPU + milky white TPU. Alternatively, it can be extruded in one piece with three colors of TPU material, which is transparent TPU + frosted TPU + milky white TPU.

[0033] Specifically, such as Figure 3 As shown, when the lamp body is formed by extrusion of silicone or plastic, a protective layer 3 is provided on the lamp body 1.

[0034] In this embodiment, Figure 3The lamp body 1 shown is formed from silicone or plastic through an extrusion process. To enhance the waterproofness of the lamp body 1, a protective layer 3 can be provided on the lamp body 1. The protective layer 3 is made of TPU material. The excellent properties of TPU are utilized to further enhance the waterproof and wear-resistant capabilities of the lamp body 1. During operation, when the lamp body 1 is subjected to external friction or moisture erosion, the protective layer 3 comes into contact with the external environment first, protecting the lamp body 1 from damage. In specific implementations, the protective layer 3 can be attached to the surface of the lamp body 1 by coating, hot pressing, or other methods. For example, in the coating process, a TPU solution is evenly coated on the surface of the lamp body 1, and then the TPU solution is cured through processes such as drying to form the protective layer 3; in the hot pressing process, a TPU film is heated and pressed onto the surface of the lamp body 1 to form the protective layer 3, ensuring that the protective layer 3 adheres tightly to the surface of the lamp body 1.

[0035] from Figure 2 It can be seen that the lamp body 1, formed from TPU material through an extrusion process, does not require a protective layer 3 to achieve waterproofing. Therefore, the outer layer of the light source assembly 4 consists only of the lamp body 1. Figure 3 It is known that the waterproof performance of the lamp body 1, formed by extrusion of silicone or plastic, cannot be completely guaranteed. Therefore, a protective layer 3 needs to be set on the outer layer of the lamp body 1, so that the lamp body 1 and the protective layer 3 are sequentially formed on the outer layer of the light source assembly 4. This can also be understood as... Figure 2 The functions performed by the lamp body 1 include: Figure 3 The functions of the lamp body 1 and the protective layer 3.

[0036] In practical implementation, for the lamp body 1 formed by extrusion process using TPU material, a protective layer 3 can also be set on the lamp body 1. The protective layer 3 is also made of TPU material. Through the dual TPU effect of the protective layer 3 and the lamp body 1, the overall waterproofness of the lamp is improved.

[0037] Specifically, such as Figure 1-4 As shown, the waterproof luminaire also includes a light source assembly 4 disposed on the luminaire body 1.

[0038] In this embodiment, the light source assembly 4 is the core component for the lamp to achieve its lighting function. The light source assembly 4 is mounted on the lamp body 1, and its installation must be stable and waterproof. During implementation, various methods can be used to fix the light source assembly 4, such as using slots or screws to secure it within the lamp body 1. Furthermore, waterproofing measures such as sealant are applied at the fixing points to further improve waterproofing performance.

[0039] Specifically, such as Figure 4 As shown, the light source assembly 4 includes an LED bead 41 and a substrate 42, with the electrodes of the LED bead 41 flip-chip bonded to the substrate 42.

[0040] In this embodiment, the flip-chip soldering method reduces the number of connection pins between the LED chip 41 and the substrate 42, lowers the height of the connection point, and makes the entire light source assembly 4 more compact. It also improves the stability of the electrical connection and heat dissipation performance. During operation, the flip-chip soldered LED chip 41 and the substrate 42 form a good electrical connection, allowing current to flow stably through the LED chip 41, enabling it to emit light normally. Compared to traditional conventional soldering, the flip-chip soldered LED chip 41 has stronger resistance to external torsion and higher reliability and stability, effectively improving the lifespan and luminous efficiency of the light source assembly 4.

[0041] In practice, the electrodes of the lamp bead 41 are first flip-chip soldered onto the substrate 42, and then liquid silicone is used to draw a line light source, which is the light source assembly 4.

[0042] Specifically, multiple LED beads 41 are evenly distributed on the substrate 42, and the LED beads are fixed on the substrate 42 using liquid silicone.

[0043] In this embodiment, multiple LED beads 41 are evenly distributed on the substrate, enabling more uniform light distribution across the entire illumination area and avoiding uneven brightness in certain areas, thus providing a more comfortable and high-quality lighting effect. In practical implementation, the installation positions of the LED beads 41 can be precisely marked on the substrate, and the multiple LED beads 41 can be evenly distributed on the substrate. The spacing between adjacent LED beads can be set to 5mm to achieve a uniform light emission effect. Then, liquid silicone is evenly applied to the bottom of each LED bead 41 using a dispensing device, and each LED bead 41 is accurately placed at the marked position on the substrate to fix all LED beads 41 on the substrate. In this embodiment, multiple LED beads 41 can emit light together, improving the overall brightness of the waterproof lamp and meeting the lighting needs of different scenarios. The liquid silicone has good adhesion and flexibility, which can firmly fix the LED beads 41 on the substrate, preventing them from loosening or falling off due to vibration, collision, or other reasons during use, thus improving the reliability and stability of the lamp.

[0044] Specifically, LED 41 is a COF LED or a CSP LED.

[0045] In this embodiment, both COF (Chip On Film) and CSP (Chip Scale Package) LEDs have advantages such as small size, high luminous efficiency, and good heat dissipation. Selecting one of these two types of LEDs 41 as the LED in the light source component 4 meets the requirements of waterproof lighting fixtures for miniaturization and high efficiency. In implementation, both COF and CSP LEDs provide stable and efficient lighting. This embodiment, by using COF and CSP LEDs, makes the light source of the waterproof lighting fixture more compact, which is beneficial for miniaturized design, while also improving the luminous efficiency and heat dissipation performance, and extending the lifespan of the lighting fixture. In specific implementations, the number of COF and CSP LEDs can be rationally selected according to the different design requirements and lighting needs of the lighting fixture. For example, for lighting fixtures with high brightness requirements, the number of LEDs 41 can be appropriately increased; for lighting fixtures with limited space, smaller CSP LEDs can be prioritized.

[0046] Specifically, substrate 42 is a flexible printed circuit board.

[0047] In this embodiment, a flexible printed circuit board (FPCB) is used as the substrate 42 of the light source assembly 4. The flexibility and bendability of the FPCB allow it to better adapt to the shape and structure of the lamp body 1, making the installation of the light source assembly 4 more flexible. During operation, the FPCB can stably transmit current, providing power to the lamp beads 41. The substrate 42 can be an FPCB.

[0048] Specifically, the lamp body 1 is provided with a sealant layer at both ends, and the sealing component 2 is located on the outside of the sealant layer.

[0049] In this embodiment, the sealing performance at both ends of the lamp body 1 is further enhanced through the filling and sealing effect of the sealant layer, compensating for any minor gaps that may exist in the sealing component 2. During operation, when the lamp is in a humid environment, the sealing component 2 first blocks moisture, and then the sealant layer further strengthens the sealing effect, providing double protection to ensure that moisture cannot enter the lamp's interior. This embodiment, by adding a sealant layer, significantly improves the waterproof performance of the waterproof lamp, enabling it to better adapt to environments with higher waterproofing requirements.

[0050] In practice, the sealant layer is formed by one of the following methods: applying glue, potting glue, molding silicone, or injection molding plastic. The potting glue can be liquid silicone, PU glue, or epoxy resin glue, and the injection molding plastic can be PVC or TPU particles. The appropriate method can be selected based on the usage environment and requirements of the lighting fixture.

[0051] In practical implementation, a nano-waterproof coating can be sprayed onto the surface of the lamp body 1. This coating is composed of special nano-polymers that can form an ultra-thin, transparent, and hydrophobic protective film on the material surface. In actual applications, even if the lamp surface is covered with water, water droplets will quickly roll off the coating surface and will not penetrate into the lamp interior. In addition, the nano-waterproof coating also has anti-fouling and wear-resistant properties, which can extend the lamp's service life and maintain a clean appearance.

[0052] For the sealant layer, a new type of self-healing sealant can also be used. This sealant can automatically repair itself when it suffers minor damage or develops tiny gaps. The principle is that the sealant contains special microcapsules; when the sealant layer is damaged, the microcapsules rupture and release a repair agent, which reacts chemically with the sealant to fill the gaps and re-cures, restoring the sealing performance. The application of self-healing sealants greatly improves the waterproof reliability of lighting fixtures during long-term use and reduces waterproof failure problems caused by sealant aging and cracking.

[0053] With the above settings, the waterproof lighting fixtures can achieve an IP68 rating.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A waterproof lamp, characterized in that, The lamp includes a lamp body, a sealing component, and a TPU wire. The TPU wire is disposed at one end of the lamp body. The sealing component includes two plugs, which are respectively wrapped around both ends of the lamp body, and one of the plugs is also wrapped around the TPU wire. The lamp body is formed by extrusion of TPU material, silicone, or plastic, and the sealing component is injection molded from TPU material.

2. The waterproof lighting fixture according to claim 1, characterized in that, When the lamp body is formed from silicone or plastic through an extrusion process, a protective layer is provided on the lamp body.

3. The waterproof lighting fixture according to claim 2, characterized in that, The protective layer is made of TPU material.

4. The waterproof lighting fixture according to claim 1, characterized in that, The waterproof luminaire also includes a light source assembly disposed on the luminaire body.

5. The waterproof lamp according to claim 4, characterized in that, The light source assembly includes LED beads and a substrate, with the electrodes of the LED beads flip-chip soldered onto the substrate.

6. The waterproof lighting fixture according to claim 5, characterized in that, Multiple LED beads are arranged and evenly distributed on the substrate, and the LED beads are fixed on the substrate using liquid silicone.

7. The waterproof lamp according to claim 5, characterized in that, The LED is a COF LED or a CSP LED.

8. The waterproof lamp according to claim 5, characterized in that, The substrate is a flexible printed circuit board.

9. The waterproof lighting fixture according to claim 1, characterized in that, The lamp body is also provided with a sealant layer at both ends, and the sealing component is located on the outside of the sealant layer.

10. The waterproof lighting fixture according to claim 9, characterized in that, The sealant layer is formed using one of the following methods: applying glue, pouring glue, molding silicone, or injection molding plastic.

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