An integrally injection molded waterproof light

Abstract

The utility model discloses a waterproof lamp of integrated injection molding. Including circuit board, wire rod, lens, soft glue gasket and injection molding body, the wire rod is welded on the soldering pan of circuit board, the lens is installed on the circuit board and covers the light source on the circuit board, the soft glue gasket is placed in the bottom of circuit board, the injection molding body passes through hot -press injection molding and covers circuit board, and the top of lens and the central position of soft glue gasket are placed in the outside of injection molding body, and the wire rod is worn and comes out injection molding body. The utility model discloses through the lens cover and shut the light source, make the injection molding body and the light source when injection molding and cut off, avoid the direct contact of high temperature injection molding body and light source, at the same time, let the soft glue gasket be placed in the bottom of circuit board, when carrying out pressure casting, rely on the softness of soft glue gasket, to undertake circuit board, thereby to play the role of protecting circuit board.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a one-piece injection-molded waterproof lamp. Background Technology

[0002] String lights are a common light source, often used for decoration, especially outdoors, because they can emit multi-colored light. However, string lights contain electronic components, which are prone to short circuits and burnout when exposed to water. Therefore, for outdoor decorative lighting applications, these products need to meet outdoor usage requirements, meaning they need to be waterproof.

[0003] Currently, there are two main technologies used in the market to ensure the waterproof performance of light sources: one is potting sealant, which wraps the entire circuit wires in a glue, and the other is to compress the wires through protrusions at the wire exit points of the upper and lower shells to achieve a sealing effect. Compared to the upper and lower shell sealing method, the light source sealed by potting has better waterproof performance. However, during potting injection molding, because the internal PCB board is made of rigid material, the pressure generated during the secondary injection molding can cause the PCB board to deform, leading to product defects. Furthermore, the high temperature during injection molding directly contacts the light source, which can easily damage components. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a one-piece injection molded waterproof lamp.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A one-piece injection-molded waterproof lamp includes a circuit board, wires, a lens, a soft rubber pad, and an injection-molded body. The wires are soldered to pads on the circuit board. The lens is mounted on the circuit board and covers the light source on the circuit board. The soft rubber pad is placed at the bottom of the circuit board. The injection-molded body covers the circuit board by hot-pressing injection molding. The top of the lens and the center of the soft rubber pad are both located outside the injection-molded body. The wires extend out of the injection-molded body.

[0007] Preferably, the lower end of the lens is provided with at least two first positioning posts, and the circuit board is provided with a first pair of insertion holes corresponding to the first positioning posts, wherein the first positioning posts are inserted into the first pair of insertion holes.

[0008] Preferably, the end face of the lens facing the lamp source is a convex lens.

[0009] Preferably, the edge of the soft rubber pad is provided with at least two second positioning posts, and the circuit board is provided with a second pair of insertion holes corresponding to the second positioning posts, and the second positioning posts are inserted into the second pair of insertion holes.

[0010] By adopting the above solution, this utility model isolates the injection molding body from the light source by covering the lens cover, thus preventing the high-temperature injection molding body from directly contacting the light source. At the same time, the soft rubber pad is placed at the bottom of the circuit board. During die casting, the soft rubber pad supports the circuit board by its flexibility, thereby protecting the circuit board. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0012] Figure 2 This is an exploded view of the structure of an embodiment of this utility model.

[0013] Figure 3 This is a cross-sectional view of an embodiment of the present utility model.

[0014] Figure 4 This is a schematic diagram of the light projection according to an embodiment of the present invention. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] like Figures 1 to 4 As shown, this embodiment provides an integrated injection-molded waterproof lamp, including a circuit board 1, a wire 2, a lens 3, a soft rubber pad 4, and an injection-molded body 5. The wire 2 is soldered to the pads of the circuit board 1. The lens 3 is mounted on the circuit board 1 and covers the light source 6 on the circuit board 1. The soft rubber pad 4 is placed at the bottom of the circuit board 1. The injection-molded body 5 is wrapped around the circuit board 1 by hot-press injection molding. The top of the lens 3 and the center of the soft rubber pad 4 are both placed outside the injection-molded body 5. The wire 2 passes through the injection-molded body 4.

[0019] This embodiment mainly involves covering the lamp source 6 with the lens 3, isolating the injection molding body 5 from the lamp source 6 during injection molding, thus preventing the high-temperature injection molding body 5 from directly contacting the lamp source 6. At the same time, the soft rubber pad 4 is placed at the bottom of the circuit board 1. During die casting, the soft rubber pad 4 supports the circuit board 1 due to its flexibility, thereby protecting the circuit board 1.

[0020] During the injection molding process, the wire 2, lens 3, and soft rubber gasket 4 are first welded or installed into place, then placed into the injection mold. The injection body 5 is then formed by hot-pressing, encasing the entire structure and leaving only the top of the lens 3 and the center of the soft rubber gasket 4 exposed. This provides both fixation and a one-piece injection molding structure, while also providing a waterproof seal. The injection body 5 can be made of silicone, or other waterproof soft rubber materials suitable for injection molding.

[0021] Furthermore, in order to pre-fix the lens 3 before injection molding, the lower end of the lens 3 in this embodiment is provided with at least two first positioning posts 31, and the circuit board 1 is provided with a first pair of insertion holes 11 corresponding to the first positioning posts 31. The first positioning posts 31 are inserted into the first pair of insertion holes 11, so as to temporarily fix the lens 3.

[0022] Furthermore, to enhance the lighting effect, the end face of lens 3 facing the light source 6 in this embodiment is a convex lens, specifically a crescent-shaped convex lens. For details on the principle of light refraction, please refer to [reference needed]. Figure 4The projected light can create a hill-like shape, adding to the aesthetic appeal.

[0023] Furthermore, in order to pre-fix the soft rubber pad 4 before injection molding, the edge of the soft rubber pad 4 in this embodiment is provided with at least two second positioning posts 41, and the circuit board 1 is provided with a second pair of insertion holes 12 corresponding to the second positioning posts 41. The second positioning posts 41 are inserted into the second pair of insertion holes 12, so as to temporarily fix the lens 3.

[0024] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A one-piece injection-molded waterproof lamp, characterized in that: The device includes a circuit board, wires, a lens, a soft rubber pad, and an injection molding body. The wires are soldered to the pads on the circuit board. The lens is mounted on the circuit board and covers the light source on the circuit board. The soft rubber pad is placed at the bottom of the circuit board. The injection molding body covers the circuit board by hot-pressing injection molding. The top of the lens and the center of the soft rubber pad are both located outside the injection molding body. The wires extend out of the injection molding body.

2. The one-piece injection-molded waterproof lamp as described in claim 1, characterized in that: The lower end of the lens is provided with at least two first positioning posts, and the circuit board is provided with a first pair of insertion holes corresponding to the first positioning posts, and the first positioning posts are inserted into the first pair of insertion holes.

3. The one-piece injection-molded waterproof lamp as described in claim 2, characterized in that: The end face of the lens facing the light source is a convex lens.

4. A one-piece injection-molded waterproof lamp as described in claim 3, characterized in that: The edge of the soft rubber pad is provided with at least two second positioning posts, and the circuit board is provided with a second pair of insertion holes corresponding to the second positioning posts, and the second positioning posts are inserted into the second pair of insertion holes.

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