Self-waterproof underwater bulb

By employing a plug-in connector, a waterproof sealing ring, and a threaded connection design for the wire-locking components, the sealing and installation challenges of underwater bulbs are solved, achieving highly efficient waterproofing and easy installation, while extending their service life.

CN223895942UActive Publication Date: 2026-02-10GUANGZHOU HUAJIN SWIMMING POOL LIGHTING CO LTD
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Patent Information

Application Number
CN202520624405.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-02-10
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing underwater bulbs have difficulty in ensuring sealing performance, are difficult to install and maintain, and have limited design flexibility.

Method used

The design incorporates plug-in connectors, a waterproof gasket, and a wire-locking component. The bulb is waterproofed through a threaded connection, simplifying the installation process.

Benefits of technology

It improves the waterproof performance and reliability of the bulbs, extends their service life, and simplifies the installation and disassembly process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-waterproof underwater lamp bulb which comprises a lamp body, a pluggable connector, a wire locking waterproof rubber ring, a wire locking component and a power line. The waterproof bulb has good waterproof performance, so that the bulb can stably and safely work in an underwater environment, moisture is effectively prevented from permeating into the bulb, and the service life of the bulb is prolonged. The installation process of the underwater bulb is simpler and quicker, the installation efficiency is improved, the installation difficulty is reduced, and a user can easily complete installation and disassembly of the bulb.
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Description

Technical Field

[0001] This utility model relates to the field of underwater lighting technology, and in particular to an underwater bulb that is waterproof. Background Technology

[0002] The PAR56 underwater light is a replaceable light source with a diameter of 56 inches (approximately 177 mm), and is widely used in swimming pools, aquariums, underwater landscape lighting, and other applications.

[0003] Currently, most standard cup-shaped PAR56-LED underwater bulbs on the market feature exposed terminals at the bulb's base for connection to an external power source. However, this design means the bulb itself is not waterproof. To ensure proper underwater operation, a sealing ring is typically added between the bulb and the bulb housing to achieve waterproofing.

[0004] Although adding a sealing ring can make a light bulb waterproof, this method has the following drawbacks:

[0005] 1. Sealing performance is difficult to guarantee: During long-term use, the sealing ring may experience a decline in sealing performance due to aging, wear, or improper installation, thus failing to effectively prevent moisture from penetrating into the bulb.

[0006] 2. Difficult installation and maintenance: Adding a sealing ring increases the complexity of installation between the bulb and the lamp housing, and also makes subsequent maintenance inconvenient. Once the sealing ring is damaged or fails, replacing it requires disassembling the entire bulb and lamp housing, increasing maintenance costs and time.

[0007] 3. Limited bulb flexibility: Because waterproofing relies on a sealing ring, the design of the bulb's back is somewhat limited, making it impossible to adjust flexibly according to actual needs. Utility Model Content

[0008] The purpose of this invention is to provide an underwater bulb that is waterproof. By improving the design of the bulb's tail, the problem of waterproofing can be fundamentally solved, thereby improving the bulb's waterproof performance and reliability.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] A waterproof underwater bulb includes a bulb body, a plug-in connector, a wire-locking waterproof rubber ring, a wire-locking component, and a power cord. The bulb body includes a faceplate, a lamp panel, and a bulb housing, which are sequentially overlapped. A power connector is located on the side of the bulb housing away from the faceplate. The power connector has a connection cavity. One end of the power cord is connected to the plug-in connector, and the other end of the power cord passes through the wire-locking waterproof rubber ring and the wire-locking component. A power plug is located inside the connection cavity, and the plug-in connector is inserted into the connection cavity. The wire-locking component is detachably connected to the connection cavity.

[0011] Furthermore, the plug-in connector is provided with a power socket, which is compatible with the power plug.

[0012] Furthermore, the plug-in connector is provided with a wiring terminal, which is connected to the power cord.

[0013] Furthermore, the locking component is a locking nut, and the outer side of the connecting cavity is provided with an external thread that is compatible with the locking nut.

[0014] Furthermore, the size of the locking wire waterproof rubber ring is adapted to the opening of the connecting cavity.

[0015] Furthermore, the underwater bulb is a cup-shaped PAR56-LED underwater bulb.

[0016] Beneficial effects:

[0017] The underwater bulb of this invention has excellent waterproof performance, enabling it to operate stably and safely in underwater environments. This effectively prevents water from seeping into the bulb, thus extending its lifespan. Furthermore, the installation process of this underwater bulb is simpler and faster, improving installation efficiency and reducing difficulty, allowing users to easily install and remove the bulb. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a partial exploded view of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the lamp body in this utility model;

[0022] Figure 5 This is a schematic diagram of the power cord connection in this utility model;

[0023] Figure 6 These are the front and rear views of the lamp body in this utility model.

[0024] The following are the labels in the diagram: 1. Lamp body; 2. Power connector; 3. Connecting cavity; 4. Plug-in connector; 5. Wire-locking waterproof rubber ring; 6. Wire-locking nut; 7. Power cord; 8. Power plug; 9. Wiring terminal; 10. Power socket. Detailed Implementation

[0025] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," etc., 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In addition, unless otherwise specified, the components used in the following embodiments are all existing components, and their corresponding connection methods can also be achieved through conventional technical means, which will not be described in detail in this application. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example

[0028] A type of waterproof underwater light bulb, such as Figures 1 to 6 As shown, the lamp includes a lamp body 1, a plug-in connector 4, a wire-locking waterproof rubber ring 5, a wire-locking component, and a power cord 7. The lamp body 1 includes a face cover, a lamp panel, and a lamp housing, which are sequentially overlapped. A power connector 2 is provided on the side of the lamp housing away from the face cover. The power connector 2 has a connection cavity 3. One end of the power cord 7 is connected to the plug-in connector 4, and the other end of the power cord 7 passes through the wire-locking waterproof rubber ring 5 and the wire-locking component in sequence. A power plug 8 is provided inside the connection cavity 3. The plug-in connector 4 is inserted into the connection cavity 3, and the wire-locking component can be detachably connected to the connection cavity 3.

[0029] Specifically, the underwater bulb design in this embodiment is mainly applied to the cup-shaped PAR56-LED underwater light. A power connector 2 for connecting to the power source is provided on the back of the lamp housing. A connecting cavity 3 is provided on the power connector 2, and two power plugs 8 are provided inside the connecting cavity 3. The plug-in connector 4 can be inserted into the connecting cavity 3 and is connected to the power cord 7. Thus, the plug-in connector 4 provides power to the bulb when inserted into the connecting cavity 3, and disconnects the power when pulled out, facilitating maintenance by personnel. To fix the plug-in connector 4, a wire-locking component is connected to the connecting cavity 3, thereby fixing the plug-in connector 4 inside the connecting cavity 3. In order to ensure the waterproofness of the bulb, a wire-locking waterproof rubber ring 5 is provided between the plug-in connector 4 and the wire-locking component. When the wire-locking component is connected to the connecting cavity 3, the wire-locking waterproof rubber ring 5 can fill the gap between the plug-in connector 4, the power cord 7 and the lamp body 1. Because the wire-locking waterproof rubber ring 5 has good elasticity, it can ensure good sealing.

[0030] Preferably, the plug-in connector 4 is provided with a power socket 10 and a terminal block 9. The power socket 10 is adapted to the power plug rod 8, and the terminal block 9 is connected to the power cord 7. One end of the power cord 7 is connected to the terminal block 9, and the other end is used to connect to the power source. When the plug-in connector 4 is inserted into the connecting cavity 3, the power plug rod 8 is inserted into the power socket 10, thereby forming a power path to power the bulb. The tight mating between the plug-in connector 4 and the power plug rod 8 ensures stable current transmission, thus guaranteeing stable light emission from the bulb.

[0031] Preferably, the locking component is a locking nut 6, and the outer side of the connecting cavity 3 is provided with an external thread adapted to the locking nut 6. Furthermore, the size of the locking waterproof rubber ring 5 is adapted to the opening of the connecting cavity 3. After the plug-in connector 4 is inserted into the connecting cavity 3, it is threadedly connected to the outside of the connecting cavity 3 by the locking nut 6, thereby fixing the plug-in connector 4, the power cord 7, and the internal locking waterproof rubber ring 5. This ensures a tight connection between the plug-in connector 4 and the lamp body 1. The threaded connection tightens the locking waterproof rubber ring 5, forming a waterproof barrier, effectively preventing moisture from corroding the internal circuitry of the bulb and improving the bulb's reliability. The threaded connection also facilitates installation and disassembly, making it very convenient to connect and disconnect the power cord 7. Simultaneously, the cooperation between the locking nut 6 and the locking waterproof rubber ring 5 makes the installation process simpler and faster. This design not only improves installation efficiency but also reduces installation difficulty, allowing users to easily install and remove the bulb.

[0032] During installation, the power cord 7 is passed through the locking nut 6 and the waterproof locking ring 5 in sequence and then connected to the terminal 9 of the plug-in connector 4. The screws on the terminal 9 are then tightened. The power socket 10 on the plug-in connector 4 is then aligned with and inserted into the power plug 8 in the connecting cavity 3. The waterproof locking ring 5 is pulled down to fit tightly against the top of the plug-in connector 4. The locking nut 6 is then tightened to complete the installation and form a sealed and waterproof structure.

[0033] Although the embodiments of this utility model have been described in the specification, these embodiments are merely illustrative and should not limit the scope of protection of this utility model. Various omissions, substitutions, and modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A waterproof underwater light bulb, characterized in that: The device includes a lamp body, a plug-in connector, a wire-locking waterproof rubber ring, a wire-locking component, and a power cord. The lamp body includes a faceplate, a lamp panel, and a lamp housing, which are sequentially overlapped and connected. A power connector is provided on the side of the lamp housing away from the faceplate, and the power connector has a connection cavity. One end of the power cord is connected to the plug-in connector, and the other end of the power cord passes through the wire-locking waterproof rubber ring and the wire-locking component in sequence. A power plug is provided inside the connection cavity, and the plug-in connector is inserted into the connection cavity. The wire-locking component can be detachably connected to the connection cavity.

2. The self-waterproof underwater light bulb according to claim 1, characterized in that: The plug-in connector is provided with a power socket, which is compatible with the power plug.

3. The self-waterproof underwater light bulb according to claim 1, characterized in that: The plug-in connector is provided with a terminal block, which is connected to the power cord.

4. The self-waterproof underwater light bulb according to claim 1, characterized in that: The locking component is a locking nut, and the outer side of the connecting cavity is provided with an external thread that is compatible with the locking nut.

5. The self-waterproof underwater light bulb according to claim 1, characterized in that: The size of the locking wire waterproof rubber ring is adapted to the opening of the connecting cavity.

6. The self-waterproof underwater light bulb according to any one of claims 1 to 5, characterized in that: The underwater bulb is a cup-shaped PAR56-LED underwater bulb.