Rainproof decorative lamp and decorative lamp string
By adopting injection-molded insulating connectors and multi-layer sealing design in decorative lamps, the problem of insufficient waterproof performance of decorative lamps is solved, and high reliability and long service life in humid environments are achieved.
Patent Information
- Application Number
- CN202422894533.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The connection method of existing decorative lights has defects in waterproof performance. Especially when used outdoors, they are easily loosened due to vibration and temperature changes, and cannot be effectively sealed, causing moisture to penetrate into the interior of the lamp, affecting its service life and reliability.
The wires and electrical connectors are wrapped with an injection-molded insulating connector, which is then threaded and sealed with the lamp sleeve, insulating connector, and bulb. Combined with the cap, protrusions, grooves, and water-guiding edges, a multi-layer sealing structure is formed to prevent moisture from penetrating.
Significantly improves the waterproof performance of decorative lights in humid environments, extends their service life and reduces the risk of electrical connection short circuits, ensuring that the lights can operate normally in rainy days or high humidity conditions.
Smart Images
Figure CN223360598U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of decorative lighting, and in particular to a rainproof decorative lamp and a decorative lamp string. Background Art
[0002] Decorative light strings are an important element in creating a festive atmosphere. They are also commonly used for outdoor landscape lighting and decoration in places such as parks, squares, commercial streets, and residential areas. They can attract tourists and residents to stop and watch, and enhance the night image of a city or region.
[0003] Conventional decorative lights primarily consist of a bulb assembly and a bulb mounted on a standard base. For example, the bulb can be mounted on a screw-on base that threads into a complementary bulb socket, or on a bayonet base that bayonet-connects to the complementary bulb socket. The base includes a housing that defines the bulb assembly's negative terminal and also includes the bulb assembly's positive terminal. When the housing is connected to the bulb socket, the negative and positive terminals provided by the housing mate with the corresponding negative and positive terminals on the socket, electrically connecting the bulb assembly to the socket and providing power to the wick, causing it to emit light.
[0004] However, the threaded connection between the screw base and the bulb has many drawbacks in terms of waterproof performance. For example, the threaded fit or bayonet connection may loosen over long-term use due to factors such as vibration and temperature fluctuations, making it impossible to ensure a tight connection between the bulb and the lamp holder. This not only affects the normal operation of the lamp but also increases the risk of circuit failure. Most importantly, the existing connection method does not form an effective seal. When used outdoors in rain, dew, or high humidity, moisture can easily seep into the lamp through the connection gap. Once moisture enters, it can cause a short circuit in the electrical connector and damage the bulb, significantly reducing the service life and reliability of the decorative lamp. Utility Model Content
[0005] In order to overcome the shortcomings of the waterproof performance of decorative lights in the prior art, the present application provides a rainproof decorative light and a decorative light string, which can improve the waterproof performance of the decorative light.
[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a rainproof decorative lamp, comprising a filament body, a wire and an electrical connector for establishing an electrical connection between the two, and an insulating connector injection molded on the electrical connector and wrapping the electrical connector, and part of the wire is wrapped by the insulating connector, and also includes a lamp cover, the upper part of the lamp cover is threaded and sealed with the insulating connector, and the lower part of the lamp cover is threaded and sealed with a light bulb that covers the filament.
[0007] After adopting the above technical solution, the present application has the following advantages: the wires and the electrical connector are wrapped by an injection-molded insulating connector, which largely avoids short circuits in the electrical connection parts due to water vapor and the like. In addition, the lamp cover is threadedly sealed with the insulating connector and the bulb respectively, which reduces the possibility of liquid entering the decorative lamp on rainy days or other humid environments, thereby greatly improving the service life and reliability of the decorative lamp.
[0008] Furthermore, the insulating connector is provided with a cap having an outer diameter larger than the diameter of the screw thread of the lamp sleeve, and the cap abuts against and shields the top of the screw thread of the lamp sleeve.
[0009] By adopting the above-mentioned technical solution, the outer diameter of the cap is larger than the diameter of the lamp sleeve thread, which can form a shield above the decorative lamp. When encountering rain, the cap can prevent rainwater from dripping directly onto the threaded connection of the lamp sleeve, reducing the possibility of rainwater seeping into the interior of the lamp from the threaded connection.
[0010] Furthermore, the lamp cover is provided with a protrusion, and the cap is provided with a groove adapted to abut against the protrusion.
[0011] With the aforementioned technical solution, when the protrusion and groove fit tightly together, an additional sealing barrier is formed between the lamp housing and the cap. This barrier effectively prevents moisture from penetrating into the decorative lamp through the connection between the lamp housing and the cap, further improving the decorative lamp's waterproof performance. Even in humid environments, the combination of the protrusion and groove reduces moisture penetration. This design effectively protects the electrical components within the decorative lamp and extends its service life.
[0012] Furthermore, a transition portion is provided between the top and the side wall of the lamp housing, and the transition portion is an arc surface with an outer diameter that continuously increases from top to bottom.
[0013] With the above-mentioned technical solution, when water falls on the top of the lamp cover, the water flow can flow down more smoothly along the surface of the arc-shaped transition portion without forming water accumulation on the top of the lamp cover. This reduces the time that water stays on the lamp cover and reduces the risk of water penetrating into the interior of the lamp.
[0014] Furthermore, the lower portion of the lamp housing is provided with a water guide edge extending radially outward.
[0015] By adopting the above-mentioned technical solution, the water guide edge can change the direction of the water flow, so that the water flow is diverted along the direction in which it extends outward, thereby avoiding the water flow from concentrating on the lower part of the lamp sleeve, reducing the pressure of the water flow on the connection between the lamp sleeve and the bulb, thereby improving the waterproof performance. When the water flow encounters the water guide edge, it will be guided to flow away from the lamp sleeve and the bulb, preventing the water flow from accumulating around the lamp sleeve, which helps to keep the connection between the lamp sleeve and the bulb dry and reduces the possibility of water penetration.
[0016] Furthermore, a sealing block having an outer diameter matching the inner diameter of the lamp sleeve is provided at the threaded bottom end of the bulb.
[0017] With the aforementioned technical solution, when water contacts the connection between the bulb and the lamp sleeve, the sealing block can prevent direct penetration of water vapor. Due to the presence of the sealing block, an effective physical barrier is formed. Water vapor cannot easily enter the interior of the lamp along the threads, but is blocked outside by the sealing block, thereby protecting the internal electrical components of the lamp.
[0018] Furthermore, a hook for hanging a decorative lamp is fixedly connected to the top of the insulating connector.
[0019] By adopting the above-mentioned technical solution, the hook can facilitate the hanging of the decorative lamp at a high place, which can further prevent the bottom of the decorative lamp from contacting wet objects. Instead, it contacts other objects through the hook on the top. The top is provided with a series of water-conducting structures, which can ensure that the decorative lamp can be used for a long time in a humid environment.
[0020] Furthermore, a top cover with a mounting groove is provided at the lower portion of the hook, and a mounting block adapted to the mounting groove is provided at the top of the insulating connector.
[0021] By adopting the above-mentioned technical solution, the cooperation between the mounting groove and the mounting block makes the connection between the hook and the insulating connector more secure. When the decorative lamp is hung or subjected to external force, this secure connection can reduce the loosening and displacement of the connection part, thereby reducing the risk of waterproof failure caused by loose connection.
[0022] Furthermore, two avoidance holes are arranged opposite to each other on the top cover, and the wires include a first wire and a second wire, and the first wire and the second wire respectively pass through one of the avoidance holes.
[0023] With the aforementioned technical solution, after the wire passes through the escape hole, the gap between the hole and the wire is relatively small and fixed. This limits the direction of moisture intrusion, making it difficult for moisture to enter the decorative light through the gap around the wire. Even in humid environments, it effectively blocks water vapor penetration.
[0024] A decorative lamp string comprises a main cable and the above-mentioned decorative lamps, wherein a plurality of the decorative lamps are connected in parallel and / or in series on the main cable.
[0025] By adopting the above-mentioned technical solution, the parallel and / or series connection method makes the installation of the decorative light string more flexible, and can be arranged according to different scenarios and needs. During the installation process, if a decorative light has a problem, it can be replaced or repaired relatively easily without affecting the normal operation of other decorative lights. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The present application will be further described below with reference to the accompanying drawings:
[0027] Figure 1 A schematic cross-sectional view of a rainproof decorative lamp for this application;
[0028] Figure 2 for Figure 1 A local enlarged view of point A;
[0029] Figure 3 for Figure 1 A partial enlarged view of point B;
[0030] Figure 4 A three-dimensional schematic view of a decorative lamp;
[0031] Figure 5 A schematic diagram of a decorative light string.
[0032] Description of the drawings: 1. Filament body; 2. Wire; 3. Insulating connector; 31. Cap; 32. Groove; 33. Mounting block; 34. Avoidance surface; 4. Lamp cover; 41. Protrusion; 42. Transition part; 43. Water guide edge; 5. Bulb; 51. Sealing block; 6. Hook; 61. Top cover; 62. Mounting groove; 63. Avoidance hole; 64. Limiting piece; 7. Main cable; 8. Electrical connector. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.
[0034] The terms "first," "second," and so on (if any) in the specification and claims of this application are used to distinguish similar objects, not to describe a specific order or precedence. Even if "second" is used before a technical feature to distinguish it, it does not necessarily imply the presence of "first." It should be understood that in this application, "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. It should be understood that in this application, "plurality" refers to two or more. "And / or" is merely a description of an association between related objects, indicating that three relationships can exist. For example, "X and / or Y" can mean: X exists alone, X and Y exist simultaneously, or Y exists alone. The character " / " generally indicates that the related objects are in an "or" relationship. "Including X, Y, and Z" means that all three of X, Y, and Z are included. "Including X, Y, or Z" means that one of X, Y, and Z is included. "Including X, Y, and / or Z" means that any one, any two, or any three of X, Y, and Z are included.
[0035] The following specific embodiments are used to describe the technical solution of the present application in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.
[0036] like Figures 1 to 5 As shown, the present application provides a rainproof decorative lamp, including a filament body 1, a wire 2 and an electrical connector 8 for establishing an electrical connection between the two, and an insulating connector 3 injection molded on the electrical connector 8 and wrapping the electrical connector, and part of the wire 2 is wrapped by the insulating connector 3, and also includes a lamp cover 4, the upper part of the lamp cover 4 is threaded and sealed with the insulating connector 3, and the lower part of the lamp cover 4 is threaded and sealed with a bulb 5 that covers the filament.
[0037] After adopting the above technical solution, the present application has the following advantages: the wire 2 and the electrical connector 8 are wrapped by the injection-molded insulating connector 3, which largely avoids the short circuit of the electrical connection part due to water vapor and the like. In addition, the lamp cover 4 is threadedly sealed with the insulating connector 3 and the bulb 5 respectively, which reduces the possibility of liquid entering the decorative lamp on rainy days or other humid environments, thereby greatly improving the service life and reliability of the decorative lamp.
[0038] It can be understood that the threaded sealing connection can be an interference fit between the threads of the insulating connector 3 and the lamp sleeve 4. The insulating connector 3 is injection molded, so the material of the material has a certain deformation range. Therefore, the inner diameter of the thread of the lamp sleeve 4 is designed to be slightly smaller than the outer diameter of the insulating connector 3, so that the two have an interference fit when they are threaded together, so that the threaded connection forms a sealed connection. Furthermore, the lamp sleeve 4 can also use deformable plastic, so that the outer diameter of the thread of the bulb 5 is slightly larger than the inner diameter of the thread of the lamp sleeve 4, so that when the two are connected, an interference fit is generated, so that the threaded connection also forms a sealed connection.
[0039] Furthermore, the insulating connector 3 is provided with a cap 31 whose outer diameter is larger than the diameter of the screw thread of the lamp sleeve 4 , and the cap 31 abuts against and covers the upper part of the screw thread of the lamp sleeve 4 .
[0040] By adopting the above-mentioned technical solution, the outer diameter of the cap 31 is larger than the diameter of the thread of the lamp sleeve 4, which can form a shield above the decorative lamp. When encountering rain, the cap 31 can prevent rainwater from dripping directly onto the threaded connection of the lamp sleeve 4, reducing the possibility of rainwater seeping into the interior of the lamp from the threaded connection.
[0041] Furthermore, the lamp cover 4 is provided with a protrusion 41 , and the cap 31 is provided with a groove 32 adapted to abut against the protrusion 41 .
[0042] With the aforementioned technical solution, when the protrusion 41 and the groove 32 fit tightly together, an additional sealing barrier is formed between the lamp housing 4 and the cap 31. This barrier effectively prevents moisture from penetrating into the interior of the decorative lamp through the connection between the lamp housing 4 and the cap 31, further improving the decorative lamp's waterproof performance. Even in humid environments, the cooperation between the protrusion 41 and the groove 32 reduces moisture penetration. This design effectively protects the electrical components within the decorative lamp and extends its service life.
[0043] Specifically, the protrusion 41 of the lamp cover 4 is arranged in a ring shape on the top of the lamp cover 4 , and the groove 32 of the cap 31 is also a matching annular groove 32 .
[0044] Furthermore, a transition portion 42 is provided between the top and the side wall of the lamp housing 4 , and the transition portion 42 is an arc surface with an outer diameter that continuously increases from top to bottom.
[0045] With the above-mentioned technical solution, when water falls on the top of the lamp cover 4, the water flow can flow down more smoothly along the surface of the arc-shaped transition portion 42 without forming water accumulation on the top of the lamp cover 4. This reduces the time that water stays on the lamp cover 4 and reduces the risk of water penetrating into the interior of the lamp.
[0046] Preferably, the cap 31 covers the top of the lamp cover 4 .
[0047] Furthermore, a water guide edge 43 extending radially outward is provided at the lower portion of the lamp housing 4 .
[0048] By adopting the above-mentioned technical solution, the water guide edge 43 can change the direction of the water flow, so that the water flow is diverted along the direction in which it extends outward, thereby avoiding the water flow from concentrating at the lower part of the lamp cover 4, reducing the pressure of the water flow on the connection between the lamp cover 4 and the bulb 5, thereby improving the waterproof performance. When the water flow encounters the water guide edge 43, it will be guided to flow away from the lamp cover 4 and the bulb 5, preventing the water flow from accumulating around the lamp cover 4, which helps to keep the connection between the lamp cover 4 and the bulb 5 dry and reduces the possibility of water penetration.
[0049] The bulb 5 is generally made of heat-resistant glass, and different colors of bulbs 5 can be selected according to the needs of different scenarios; the lamp cover 4 is made of metal in this embodiment, and is used to install the bulb 5 on the insulating connector 3.
[0050] Furthermore, a sealing block 51 having an outer diameter matching the inner diameter of the lamp housing 4 is provided at the threaded bottom end of the bulb 5 .
[0051] With the aforementioned technical solution, when water contacts the connection between the bulb 5 and the lamp cover 4, the sealing block 51 can prevent direct penetration of water vapor. Due to the presence of the sealing block 51, an effective physical barrier is formed, and water vapor cannot easily enter the interior of the lamp along the threads, but is blocked outside by the sealing block 51, thereby protecting the internal electrical components of the lamp.
[0052] Furthermore, a hook 6 for hanging a decorative lamp is fixedly connected to the top of the insulating connector 3 .
[0053] By adopting the above-mentioned technical solution, the hook 6 can facilitate the hanging of the decorative lamp at a high place, which can further prevent the bottom of the decorative lamp from contacting wet objects. Instead, it contacts other objects through the hook 6 on the top, and a series of water-conducting structures are provided on the top to ensure that the decorative lamp can be used for a long time in a humid environment.
[0054] Optionally, the top cover 61 is provided with a hook 6 and a limiting member 64 connected to the hook 6, one end of the limiting member 64 is connected to the lower end of the opening of the hook 6, and the other end is set higher than the upper end of the opening and forms an entrance between the upper end of the opening.
[0055] Furthermore, a top cover 61 with a mounting groove 62 is provided at the lower portion of the hook 6 , and a mounting block 33 adapted to the mounting groove 62 is provided at the top of the insulating connector 3 .
[0056] By adopting the above-mentioned technical solution, the cooperation between the mounting groove 62 and the mounting block 33 makes the connection between the hook 6 and the insulating connector 3 more secure. When the decorative lamp is hung or subjected to external force, this secure connection can reduce the loosening and displacement of the connection part, thereby reducing the risk of waterproof failure caused by loose connection.
[0057] In this embodiment, the top cover 61 is also made of insulating black rubber material. The outer wall of the mounting block 33 has an annular first groove, and the inner groove wall of the fixing groove has an annular first rib. The first groove and the first rib are interference fit and are used to fix the fixing part in the fixing groove. In order to make the fixing effect better, multiple first grooves and first ribs can be arranged along the axial direction. In addition, its installation method is not specifically limited in other embodiments. The mounting block 33 and the mounting groove 62 can also be connected by a snap.
[0058] Preferably, two avoidance holes 63 are oppositely provided on the top cover 61 , and the wires 2 include a first wire 2 and a second wire 2 , and the first wire 2 and the second wire 2 respectively pass through one of the avoidance holes 63 .
[0059] With the aforementioned technical solution, after the wire 2 passes through the avoidance hole 63, the gap between the avoidance hole 63 and the wire 2 is relatively small and fixed. This limits the direction of moisture intrusion to a certain extent, making it difficult for moisture to enter the decorative light through the gap around the wire 2. Even in humid environments, it can effectively prevent water vapor from penetrating.
[0060] Furthermore, chamfered surfaces are provided on both sides of the insulating connector 3 to form avoidance surfaces 34 on both sides. The avoidance surfaces 34 are inclined from away from the filament body to closer to the filament body and gradually shrink the insulating connector 3.
[0061] It can be understood that the beveled surface forms avoidance surfaces 34 on both sides of the insulating connector 3, which provides better guiding when the lamp cover 4 and the bulb 5 are connected. At the same time, the avoidance surfaces 34 reduce the use of materials and reduce production costs while maintaining the functionality of the insulating connector 3.
[0062] A decorative light string comprises a main cable 7 and the above-mentioned decorative lights, wherein a plurality of the decorative lights are connected in parallel and / or in series to the main cable 7.
[0063] By adopting the above-mentioned technical solution, the parallel and / or series connection mode of the main cable 7 and the decorative lights makes the installation of the decorative light string more flexible, and can be arranged according to different scenarios and needs. During the installation process, if a problem occurs with a decorative light, it can be replaced or repaired relatively easily without affecting the normal operation of other decorative lights.
[0064] In addition to the above-mentioned preferred embodiments, the present application also has other implementation methods. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present application.
Claims
1. A rainproof decorative lamp comprising a filament body, a wire, and an electrical connector for establishing an electrical connection between the filament body and the wire, and an insulating connector injection-molded on and wrapping the electrical connector, wherein a portion of the wire is wrapped by the insulating connector, characterized in that: The utility model also comprises a lamp cover, wherein the upper portion of the lamp cover is thread-sealed and connected to the insulating connector, and the lower portion of the lamp cover is thread-sealed and connected to a light bulb with a filament covered therein.
2. A rainproof decorative lamp according to claim 1, characterized in that: The insulating connector is provided with a cap with an outer diameter larger than the diameter of the lamp sleeve screw thread, and the cap abuts against and covers the upper portion of the lamp sleeve screw thread.
3. A rainproof decorative lamp according to claim 2, characterized in that: The top of the lamp cover is provided with a protrusion, and the cap is provided with a groove that abuts and cooperates with the protrusion.
4. A rainproof decorative lamp according to claim 1, characterized in that: A transition portion is provided between the top and the side wall of the lamp housing, and the transition portion is an arc surface with an outer diameter that continuously increases from top to bottom.
5. The rainproof decorative lamp according to claim 1, characterized in that: The lower part of the lamp sleeve is provided with a water guide edge extending radially outward.
6. A rainproof decorative lamp according to claim 1, characterized in that: The threaded bottom end of the bulb is provided with a sealing block whose outer diameter matches the inner diameter of the lamp sleeve.
7. The rainproof decorative lamp according to claim 1, characterized in that: A hook for hanging a decorative lamp is fixedly connected to the top of the insulating connector.
8. The rainproof decorative lamp according to claim 7, characterized in that: A top cover with a mounting groove is provided at the lower portion of the hook, and a mounting block adapted to the mounting groove is provided at the top of the insulating connector.
9. The rainproof decorative lamp according to claim 8, characterized in that: The top cover is provided with two avoidance holes, and the wires include a first wire and a second wire, and the first wire and the second wire respectively pass through one of the avoidance holes.
10. A decorative light string, characterized in that: The invention comprises a main cable and a plurality of decorative lamps according to any one of claims 1 to 9, wherein the plurality of decorative lamps are connected in parallel and / or in series to the main cable.