A waterproof sealing structure of an LED filament lamp

Abstract

The utility model discloses a waterproof sealing structure of LED filament lamp relates to LED filament lamp sealing technical field, the utility model discloses a bottom plate is passed through and is fixedly connected with electrode connecting post in the top of bottom plate, one end of electrode connecting post is fixedly connected with filament, the top of bottom plate is provided with the lamp shade, and the circumference of electrode connecting post is provided with sealing structure. The utility model discloses through mutual cooperation between the filling cavity, glue hole and limit ring etc. components in sealing structure, realized the multilayer sealing defense line around electrode connecting post, effectively prevented the water vapor from invading, improved the waterproof performance of LED filament lamp, ensured the long -term stable operation of LED filament lamp under the harsh environment, and simple installation reduced production cost, has extensive market application prospect. Solve the technical problem of unable to carry out comprehensive and effective sealing to electrode connecting post in relevant technology, lead to water vapor easily immerse, influence LED filament lamp service life and performance stability.

Description

Technical Field

[0001] This utility model belongs to the field of LED filament lamp sealing technology, and in particular relates to a waterproof sealing structure for LED filament lamps. Background Technology

[0002] In existing LED filament lamp applications, due to the diverse operating environments, they often face situations involving humidity or even water immersion. If the sealing performance of the LED filament lamp is poor, moisture can easily penetrate into the lamp body, causing critical components such as electrode connectors to become damp and oxidized, thereby affecting the LED filament lamp.

[0003] According to a public disclosure (publication number: CN209415297U), a waterproof LED filament includes a transparent lamp tube, a core column, and an LED filament body. Both ends of the transparent lamp tube have openings. A front cover is installed on the outer side of one opening, and a first sealing gasket is installed inside the front cover. A rear cover is installed on the outer side of the other opening, and a second sealing gasket is installed inside the rear cover. A lithium battery plate is installed inside the rear cover behind the second sealing gasket. The core column is slidably installed inside the transparent lamp tube, and the LED filament body is wound around the surface of the core column. This utility model solves the problems of existing LED filaments being unusable underwater and the cumbersome installation and inconvenience of carrying LED filaments by setting up a transparent lamp tube, front cover, rear cover, first sealing gasket, second sealing gasket, anti-slip sleeve, elastic sleeve, handle, sliding groove, and support rod structure.

[0004] In the aforementioned application, although the sealing performance of the LED filament is enhanced to some extent by setting the first and second sealing gaskets, this sealing method mainly focuses on the openings at both ends of the lamp tube. As a key channel for current transmission, the sealing performance of the electrode connecting post is directly related to the overall waterproof effect of the LED filament lamp. If the electrode connecting post is not sealed tightly, moisture may still penetrate into the lamp body through the gaps around it. Therefore, we propose a waterproof sealing structure for LED filament lamps. Utility Model Content

[0005] The purpose of this invention is to provide a waterproof sealing structure for LED filament lamps, which solves the existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a waterproof sealing structure for an LED filament lamp, comprising a base plate, an electrode connecting post that is fixedly connected through and fixed to the top of the base plate, a filament that is fixedly connected to one end of the electrode connecting post, a lamp cover that is provided on the top of the base plate, and a sealing structure that is provided on the circumferential surface of the electrode connecting post.

[0007] The sealing structure includes a filling cavity, which is located inside the base plate. The bottom of the base plate has a filling hole, and a limit ring is fixedly connected to the bottom of the base plate.

[0008] Furthermore, the number of filling cavities is set to several, and they are arranged in a linear array along the circumference of the electrode connecting post, uniformly filling the cavity with sealant to improve the sealing effect.

[0009] Furthermore, the injection hole penetrates the interior of the filling cavity, facilitating the injection of sealant from the bottom into the filling cavity, ensuring the integrity and reliability of the seal.

[0010] Furthermore, the side cross-section of the limiting ring is set in a U-shape to enhance the sealing performance and prevent moisture and other substances from entering from the bottom.

[0011] Furthermore, the top of the base plate is provided with a reinforced sealing structure, which includes a retaining ring. The retaining ring is fixedly connected to the top of the base plate. The circumferential surface of the lampshade is provided with an annular groove and an injection port, making the connection tighter and effectively preventing moisture penetration.

[0012] Furthermore, the circumferential surface of the insertion ring is inserted into the inner wall of the ring groove, ensuring a stable connection that is not easily loosened, thus providing a basic guarantee for waterproof sealing.

[0013] Furthermore, the inside of the injection port extends through the inside of the annular groove, further enhancing the sealing performance at the connection.

[0014] This utility model has the following beneficial effects: 1. This utility model achieves a multi-layered sealing barrier around the electrode connection post through the cooperation of components such as the filling cavity, the potting hole, and the limiting ring in the sealing structure. This effectively prevents moisture intrusion, improves the waterproof performance of the LED filament lamp, ensures the long-term stable operation of the LED filament lamp in harsh environments, and is easy to install, reducing production costs and has broad market application prospects.

[0015] 2. This utility model achieves a tight connection between the lampshade and the base plate by strengthening the cooperation between the components such as the insertion ring, ring groove and glue injection port in the sealing structure, which further enhances the overall waterproof sealing effect. Even when used for a long time or affected by external forces, it can maintain a good sealing state, effectively extend the service life of the LED filament lamp, improve the reliability of the product, and reduce the maintenance and replacement costs caused by water ingress, bringing users a more economical and practical choice.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural schematic diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional structural diagram of the sealing structure of this utility model; Figure 4 This is a three-dimensional cross-sectional structural diagram of the reinforced sealing structure of this utility model.

[0019] The attached diagram lists the components represented by each number as follows: 1. Base plate; 2. Electrode connecting post; 3. Filament; 4. Lamp cover; 5. Sealing structure; 501. Filling cavity; 502. Filling hole; 503. Limiting ring; 6. Reinforced sealing structure; 601. Insert ring; 602. Ring groove; 603. Filling port. Detailed Implementation

[0020] 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, and 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.

[0021] Please see Figures 1-4 As shown, this utility model is a waterproof sealing structure for an LED filament lamp, including a base plate 1, an electrode connecting post 2 that is fixedly connected through the top of the base plate 1, a filament 3 that is fixedly connected to one end of the electrode connecting post 2, a lamp cover 4 that is provided on the top of the base plate 1, and a sealing structure 5 that is provided on the circumferential surface of the electrode connecting post 2.

[0022] The sealing structure 5 includes a filling cavity 501, which is located inside the base plate 1. The bottom of the base plate 1 has a filling hole 502, and a limit ring 503 is fixedly connected to the bottom of the base plate 1.

[0023] The number of filling cavities 501 is set to several, and they are arranged in a linear array along the circumference of the electrode connecting post 2, and the sealant is evenly filled to improve the sealing effect.

[0024] The glue-filling hole 502 penetrates into the glue-filling cavity 501, facilitating the injection of sealant into the glue-filling cavity 501 from the bottom, ensuring the integrity and reliability of the seal.

[0025] The side section of the limiting ring 503 is designed in a U-shape to enhance sealing performance and prevent moisture and other substances from seeping in from the bottom.

[0026] The top of the base plate 1 is provided with a reinforcing sealing structure 6, which includes a plug ring 601. The plug ring 601 is fixedly connected to the top of the base plate 1. The circumferential surface of the lampshade 4 is provided with a ring groove 602 and a glue injection port 603, which makes the connection tighter and effectively prevents water vapor penetration.

[0027] The circumferential surface of the insertion ring 601 is inserted into the inner wall of the ring groove 602, ensuring a stable connection that is not easily loosened, thus providing a basic guarantee for waterproof sealing.

[0028] The inside of the glue injection port 603 penetrates the inside of the annular groove 602, further enhancing the sealing performance at the connection.

[0029] A specific application of this embodiment is as follows: When using the waterproof sealing structure 5 of this LED filament lamp, firstly, the base plate 1 and the electrode connecting post 2 are fixedly connected to ensure that the electrode connecting post 2 is firmly inserted and fixed to the top of the base plate 1. The filament 3 is installed at one end of the electrode connecting post 2 to complete the connection of the filament 3. The lamp cover 4 is placed on the top of the base plate 1, so that the insertion ring 601 on the top of the base plate 1 is inserted into the annular groove 602 on the circumferential surface of the lamp cover 4, thus initially realizing the connection between the lamp cover 4 and the base plate 1. Then, sealant is injected into the filling cavity 501 opened inside the base plate 1 through the glue filling hole 502 at the bottom of the base plate 1. Since the filling cavity 501 Several linear arrays are arranged along the circumference of the electrode connecting post 2, which can uniformly fill the sealant and improve the sealing effect. The side cross-section of the limiting ring 503 is set in a concave shape, which can enhance the sealing performance and prevent moisture from entering from the bottom. After the lamp cover 4 is initially connected to the base plate 1, sealant is injected into the annular groove 602 through the glue injection port 603 on the circumference of the lamp cover 4. Because the inside of the glue injection port 603 is connected to the inside of the annular groove 602, the sealing performance of the connection can be further enhanced, making the connection tighter and effectively preventing moisture penetration. Through the cooperation of the sealing structure 5 and the reinforcing sealing structure 6, the effective waterproof sealing of the LED filament lamp is achieved.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A waterproof sealing structure for an LED filament lamp, comprising a base plate (1), characterized in that: An electrode connecting post (2) is fixedly connected through the top of the base plate (1), a filament (3) is fixedly connected to one end of the electrode connecting post (2), a lamp cover (4) is provided on the top of the base plate (1), and a sealing structure (5) is provided on the circumferential surface of the electrode connecting post (2). The sealing structure (5) includes a filling cavity (501), which is located inside the base plate (1). The bottom of the base plate (1) has a filling hole (502), and a limit ring (503) is fixedly connected to the bottom of the base plate (1).

2. The waterproof sealing structure for an LED filament lamp according to claim 1, characterized in that, The number of filling cavities (501) is set to several, and they are arranged in a linear array along the circumferential surface of the electrode connecting post (2).

3. The waterproof sealing structure for an LED filament lamp according to claim 2, characterized in that, The glue-filling hole (502) penetrates the interior of the glue-filling cavity (501).

4. The waterproof sealing structure for an LED filament lamp according to claim 3, characterized in that, The side cross section of the limiting ring (503) is set in a concave shape.

5. The waterproof sealing structure for an LED filament lamp according to claim 4, characterized in that, The top of the base plate (1) is provided with a reinforcing sealing structure (6), the reinforcing sealing structure (6) includes a plug ring (601), the plug ring (601) is fixedly connected to the top of the base plate (1), the circumferential surface of the lampshade (4) is provided with a ring groove (602), and the circumferential surface of the lampshade (4) is provided with an injection port (603).

6. The waterproof sealing structure for an LED filament lamp according to claim 5, characterized in that, The circumferential surface of the insertion ring (601) is inserted into the inner wall of the annular groove (602).

7. The waterproof sealing structure for an LED filament lamp according to claim 6, characterized in that, The inside of the glue injection port (603) is through the inside of the annular groove (602).

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