Underwater LED lamp

Abstract

The utility model provides an underwater LED lamp which comprises a lamp shell, a front cover, a lens, a driving module, a light source, a rear cover, a first gasket, a second gasket, a third gasket, a temperature control switch and a watertight connector. The front cover is rotationally installed at the front end of the lamp shell, the lens is arranged between the front cover and the lamp shell, the lamp shell is provided with a first installation cavity and a second installation cavity, the light source is arranged in the first installation cavity, the driving module and the temperature control switch are installed in the second installation cavity, and the rear cover is rotationally installed at the rear end of the lamp shell. The watertight joint is arranged in the center of the rear cover; the first gasket is arranged between the lens and the front cover, the second gasket is arranged between the lens and the lamp shell, and the third gasket is arranged between the rear cover and the lamp shell. And the multiple gaskets are arranged, so that the waterproof performance of the lamp is improved. The LED lamp is mainly used in the technical field of lamps.

Description

Technical Field

[0001] This technical solution relates to the field of lighting technology, specifically to an underwater LED light. Background Technology

[0002] Deep-sea exploration is of great significance for the development of marine resources. However, in deeper waters, especially the deep sea, natural light has difficulty reaching the surface, making deep-sea underwater lighting particularly necessary. These lights need to withstand the pressure of deep-sea water, and are subject to severe tests such as waterproofing and corrosion resistance. Traditional light sources are unsuitable for underwater applications. Therefore, developing a searchlight suitable for deep-sea illumination is of paramount importance. Utility Model Content

[0003] This utility model provides an underwater LED light to solve one or more technical problems existing in the prior art, and at least provides a beneficial option or creates conditions.

[0004] An underwater LED light is provided, comprising: a lamp housing, a front cover, a lens, a driver module, a light source, a rear cover, a first gasket, a second gasket, a third gasket, a temperature control switch, and a watertight connector;

[0005] The front cover is rotatably mounted on the front end of the lamp housing. The lens is disposed between the front cover and the lamp housing. The lamp housing has a first mounting cavity and a second mounting cavity. The light source is disposed inside the first mounting cavity. The drive module and the temperature control switch are installed inside the second mounting cavity. The temperature control switch is used to shut down the drive module when the internal temperature of the lamp housing is too high. A through hole is provided between the first mounting cavity and the second mounting cavity. The drive module and the light source are electrically connected through the through hole. The rear cover is rotatably mounted on the rear end of the lamp housing. The watertight connector is disposed at the center of the rear cover.

[0006] The first gasket is disposed between the lens and the front cover, the second gasket is disposed between the lens and the lamp housing, and the third gasket is disposed between the rear cover and the lamp housing; the lens and the front cover respectively compress the first gasket, the lens and the lamp housing respectively compress the second gasket, and the rear cover and the lamp housing respectively compress the third gasket; the first gasket, the second gasket, and the third gasket are all flat in an "O" shape.

[0007] As a further improvement to the above solution, the rear cover is "E" shaped, the inner side of the rear cover is provided with a first internal thread, the rear end of the lamp housing is provided with a first external thread, and the first internal thread of the rear cover is adapted to connect with the first external thread of the rear end of the lamp housing.

[0008] As a further improvement to the above solution, the driving module includes a driving circuit and a substrate. The driving circuit is soldered onto the substrate. The light source includes a first LED group, a second LED group, a third LED group, and a fourth LED group. The driving circuit includes: a neutral wire input terminal, a live wire input terminal, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a first rectifier bridge, a constant current chip, and a ground terminal.

[0009] The live wire input terminal is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the second resistor and the first input terminal of the first rectifier bridge, the neutral wire input terminal is connected to the other end of the second resistor and the second input terminal of the first rectifier bridge, the first output terminal of the first rectifier bridge is connected to one end of the temperature control switch, one end of the sixth resistor, one end of the first capacitor, one end of the seventh resistor and the ground terminal, and the second output terminal of the first rectifier bridge is connected to one end of the third resistor, one end of the fourth resistor and the positive terminal of the first LED light group.

[0010] The other end of the third resistor is connected to one end of the fifth resistor, the other end of the sixth resistor, and the second pin of the constant current chip, respectively. The other end of the fourth resistor is connected to the first pin of the constant current chip. The other end of the fifth resistor is connected to the other end of the temperature control switch. The other end of the first capacitor is connected to the third pin of the constant current chip. The other end of the seventh resistor is connected to the fourth pin of the constant current chip.

[0011] The negative terminal of the first LED group is connected to the positive terminal of the second LED group and the eighth pin of the constant current chip, the negative terminal of the second LED group is connected to the positive terminal of the third LED group and the seventh pin of the constant current chip, the negative terminal of the third LED group is connected to the positive terminal of the fourth LED group and the sixth pin of the constant current chip, and the negative terminal of the fourth LED group is connected to the fifth pin of the constant current chip.

[0012] As a further improvement to the above solution, the temperature control switch is a normally closed self-resetting temperature control switch.

[0013] As a further improvement to the above solution, the lamp housing is a titanium alloy component.

[0014] As a further improvement to the above solution, the front cover is a titanium alloy component.

[0015] As a further improvement to the above solution, the back cover is a titanium alloy component.

[0016] As a further improvement to the above solution, the light source includes a COB light source.

[0017] As a further improvement to the above solution, the second mounting cavity is filled with power supply potting compound.

[0018] As a further improvement to the above solution, the watertight connector is fixed to the center of the back cover by threads.

[0019] The beneficial effects of this utility model are as follows: By setting multiple gaskets at the connection points between the front and rear covers and the lamp housing, the waterproof performance of the lamp is improved, making the lamp safer and more reliable when operating underwater. By incorporating a temperature control switch, the power to the lamp can be automatically cut off when it is removed from the water without being turned off, preventing the lamp from burning out due to the operating temperature of the high-power light source and thus improving the reliability and lifespan of the lamp. This utility model is mainly applicable to the field of lighting technology. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0021] Figure 1 A schematic diagram of the overall cross-sectional structure of an underwater LED light;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of an underwater LED light;

[0023] Figure 3 This is a schematic diagram of the driving circuit structure for an underwater LED light. Detailed Implementation

[0024] 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.

[0025] refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the overall cross-sectional structure of an underwater LED light. Figure 2 This is a disassembled structural diagram of an underwater LED light. Figure 3 This is a schematic diagram of the driving circuit structure for an underwater LED light.

[0026] Deep-sea exploration is of great significance for the development of marine resources. However, in deeper waters, especially in the deep sea, natural light is hard to reach, making it particularly necessary to use deep-sea underwater lighting. Deep-sea lights need to withstand the pressure of deep seawater, and waterproofing and corrosion resistance pose severe challenges to the lighting equipment. Traditional light sources are not suitable for underwater use.

[0027] To solve this problem, this utility model provides an underwater LED light, including: a lamp housing 400, a front cover 100, a lens 200, a drive module 500, a light source 300, a rear cover 600, a first gasket 210, a second gasket 220, a third gasket 610, a temperature control switch S1, and a watertight connector 700.

[0028] The front cover 100 is rotatably mounted on the front end of the lamp housing 400. The lens 200 is disposed between the front cover 100 and the lamp housing 400. The lamp housing 400 is provided with a first mounting cavity and a second mounting cavity. The light source 300 is disposed inside the first mounting cavity. The drive module 500 and the temperature control switch S1 are installed inside the second mounting cavity. The temperature control switch S1 is used to shut down the drive module 500 when the internal temperature of the lamp housing 400 is too high. A through hole is provided between the first mounting cavity and the second mounting cavity. The drive module 500 and the light source 300 are electrically connected through the through hole. The rear cover 600 is rotatably mounted on the rear end of the lamp housing 400. The watertight connector 700 is disposed at the center of the rear cover.

[0029] The first gasket 210 is disposed between the lens and the front cover, the second gasket 220 is disposed between the lens 200 and the lamp housing 400, and the third gasket 610 is disposed between the rear cover 600 and the lamp housing 400. The lens 200 and the front cover 100 respectively compress the first gasket 210, the lens 200 and the lamp housing 400 respectively compress the second gasket 220, and the rear cover 600 and the lamp housing 400 respectively compress the third gasket 610. The first gasket 210, the second gasket 220, and the third gasket 610 are all flat and "O"-shaped.

[0030] When installing the front cover 100, the inner side of the front cover 100 is provided with internal threads, and the front end of the lamp housing 400 is provided with external threads that match the internal threads on the inner side of the front cover 100. The front cover is installed on the front end of the lamp housing 400 by tightening the front cover 100. A first gasket 210 is provided between the front cover 100 and the lens 200, and a second gasket 220 is provided between the lens 200 and the lamp housing 400. During the tightening process of the front cover 100, the first gasket 210 and the second gasket 220 are compressed, causing the gaskets to deform. This eliminates gaps between the front cover 100, the lens 200, and the front end of the lamp housing 400, enhancing airtightness and preventing liquid from entering the lamp housing during use. Simultaneously, the deformation of the gaskets absorbs excess force, preventing the front end of the front cover 100 and the lamp housing 400 from causing wear to the lens, thus affecting the performance and lifespan of the lamp housing.

[0031] To enhance the lamp housing's resistance to water pressure, in some specific examples, the lamp housing 400, front cover 100, and rear cover 600 utilize titanium alloy components, offering excellent pressure resistance and corrosion resistance. The second mounting cavity of the lamp housing 400 is filled with power potting compound, a potting material specifically designed for power modules and circuits in electronic devices. This compound tightly encapsulates and protects the power module and circuits, forming a robust protective layer. This protective layer effectively isolates the power supply components from the external environment, preventing moisture damage. Simultaneously, it enhances the device's waterproofing and mitigates the impact of environmental factors, ensuring long-term stable operation. After the power potting compound solidifies, the entire second mounting cavity becomes a single solid structure, significantly improving the lamp housing's resistance to water pressure in deep water and enhancing heat dissipation.

[0032] To improve the reliability of the luminaire, in some further specific examples, the drive module 500 is disposed in the second mounting cavity of the lamp housing 400. The drive module 500 includes a substrate and a drive circuit. The drive circuit is soldered on the substrate. The light source includes a first LED group D1, a second LED group D2, a third LED group D3, and a fourth LED group D4. The drive circuit includes a neutral input terminal N, a live input terminal L, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first capacitor C1, a first rectifier bridge BR1, a constant current chip U1, and a ground terminal GND.

[0033] The live wire input terminal L is connected to one end of the first resistor R1. The other end of the first resistor R1 is connected to one end of the second resistor R2 and the first input terminal of the first rectifier bridge BR1. The neutral wire input terminal N is connected to the other end of the second resistor R2 and the second input terminal of the first rectifier bridge BR1. The first output terminal of the first rectifier bridge BR1 is connected to one end of the temperature control switch S1, one end of the sixth resistor R6, one end of the first capacitor C1, one end of the seventh resistor R7, and the ground terminal GND.

[0034] The second output terminal of the first rectifier bridge BR1 is connected to one end of the third resistor R3, one end of the fourth resistor R4, and the positive terminal of the first LED group D1. The other end of the third resistor R3 is connected to one end of the fifth resistor R5, the other end of the sixth resistor R6, and the second pin of the constant current chip U1. The other end of the fourth resistor R4 is connected to the first pin of the constant current chip U1. The other end of the fifth resistor R5 is connected to the other end of the temperature control switch S1. The other end of the first capacitor C1 is connected to the third pin of the constant current chip U1.

[0035] The other end of the seventh resistor R7 is connected to the fourth pin of the constant current chip U1. The negative terminal of the first LED group D1 is connected to the positive terminal of the second LED group D2 and the eighth pin of the constant current chip U1. The negative terminal of the second LED group D2 is connected to the positive terminal of the third LED group D3 and the seventh pin of the constant current chip U1. The negative terminal of the third LED group D3 is connected to the positive terminal of the fourth LED group D4 and the sixth pin of the constant current chip U1. The negative terminal of the fourth LED group D4 is connected to the fifth pin of the constant current chip U1.

[0036] In this embodiment, the constant current chip U1 is model SM2315E, which has four segments of constant current output. The output constant current value can be set by changing the resistance value of the seventh resistor R7 connected to the fourth pin of the constant current chip U1. The overvoltage protection threshold of the system can be set by changing the resistance values ​​of the third resistor R3, the fifth resistor R5, and the sixth resistor R6 connected to the second pin of the constant current chip U1. The temperature control switch S1 is a normally closed self-resetting temperature control switch. When used in water, the water absorbs the heat generated by the light source and the driver module, and the internal temperature of the lamp remains normal. Since the temperature control switch S1 is located in the second mounting cavity, the power potting compound filled in the second mounting cavity has good thermal conductivity, which can quickly conduct the heat in the second mounting cavity to the lamp housing 400, and finally to the seawater. The temperature control switch S1 monitors the temperature in the second mounting cavity in real time to prevent the lamp from being damaged by high temperature.

[0037] When the lamp is not in water, the high-power COB light source generates a large amount of heat, causing the internal temperature of the lamp to rise. When the internal temperature exceeds the set value, the temperature control switch S1 automatically disconnects, and the voltage at the second pin of the constant current chip U1 reaches the threshold, causing the constant current chip U1 to enter overvoltage protection mode. At this time, the light source is off. This protects the lamp from damage due to excessive heat generated by the light source. When the temperature returns to normal, the temperature control switch S1 automatically reconnects, ensuring normal operation of the lamp. The over-temperature protection function improves the reliability and lifespan of the lamp.

[0038] To enhance the lighting effect, in some specific examples, light source 300 employs a COB (Chip On Board Light) source, a high-power integrated surface light source that directly mounts LED chips onto a highly reflective mirrored metal substrate, forming a high-efficiency integrated surface light source technology. Due to the close arrangement of multiple LED chips, COB sources can achieve higher luminous density and brightness, making them suitable for scenarios requiring large-area, high-brightness lighting, particularly in deep-sea environments. Lens 200 should be made of materials with high pressure resistance, such as reinforced special glass. The lens can also be coated to change the color of the light as needed, flexibly adapting to more application scenarios.

[0039] To improve the waterproofness of the rear cover, in some specific examples, the rear cover 600 is "E"-shaped. The inner side of the rear cover 600 has a first internal thread, and the rear end of the lamp housing 400 has a first external thread. The first internal thread of the rear cover 600 and the first external thread of the rear end of the lamp housing 400 are fitted together. The threads secure the two together, eliminating the need for dedicated screws and allowing for a reduction in the wall thickness of the lamp housing 400. Because the second mounting cavity of the lamp housing 400 is filled with power potting compound, an end-face seal is formed between the rear cover 600 and the lamp housing 400. This end-face seal is achieved by fitting two precisely machined flat surfaces together to form a sealed interface, preventing external moisture from entering. The core of this sealing method lies in its precise contact surface and appropriate sealing pressure, ensuring both a good seal and minimizing friction and wear.

[0040] In this embodiment, the watertight connector 700 is fixed to the rear cover 600 by threads. The watertight connector is a connection device specifically designed for underwater environments. Its main function is to maintain a tight seal in harsh underwater conditions, ensuring the normal operation of underwater equipment. It prevents moisture or other liquids from entering the connection area, thereby avoiding equipment malfunction or damage.

[0041] Although the description of this application has been quite detailed and particularly focused on the described embodiments, it is not intended to limit itself to any of these details or embodiments or any particular embodiment, but should be considered as effectively covering the intended scope of this application by referring to the appended claims and taking into account the prior art to provide a broad possible interpretation of these claims. Furthermore, the foregoing description of this application with respect to embodiments foreseeable by the inventors is intended to provide a useful description, and non-substantial modifications to this application that have not yet been foreseen may still represent equivalent modifications.

Claims

1. An underwater LED light, characterized in that, include: Lamp housing, front cover, lens, driver module, light source, rear cover, first gasket, second gasket, third gasket, temperature control switch and watertight connector; The front cover is rotatably mounted on the front end of the lamp housing. The lens is disposed between the front cover and the lamp housing. The lamp housing has a first mounting cavity and a second mounting cavity. The light source is disposed inside the first mounting cavity. The drive module and the temperature control switch are installed inside the second mounting cavity. The temperature control switch is used to shut down the drive module when the internal temperature of the lamp housing is too high. A through hole is provided between the first mounting cavity and the second mounting cavity. The drive module and the light source are electrically connected through the through hole. The rear cover is rotatably mounted on the rear end of the lamp housing. The watertight connector is disposed at the center of the rear cover. The first gasket is disposed between the lens and the front cover, the second gasket is disposed between the lens and the lamp housing, and the third gasket is disposed between the rear cover and the lamp housing; The lens and the front cover respectively compress the first gasket, the lens and the lamp housing respectively compress the second gasket, and the rear cover and the lamp housing respectively compress the third gasket; The first gasket, the second gasket, and the third gasket are all flat in an "O" shape.

2. The underwater LED light according to claim 1, characterized in that, The rear cover is "E" shaped, and the inner side of the rear cover is provided with a first internal thread. The rear end of the lamp housing is provided with a first external thread, and the first internal thread of the rear cover is adapted to connect with the first external thread of the rear end of the lamp housing.

3. The underwater LED light according to claim 1, characterized in that, The driving module includes a driving circuit and a substrate. The driving circuit is soldered onto the substrate. The light source includes a first LED group, a second LED group, a third LED group, and a fourth LED group. The driving circuit includes: a neutral wire input terminal, a live wire input terminal, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a first rectifier bridge, a constant current chip, and a ground terminal. The live wire input terminal is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the second resistor and the first input terminal of the first rectifier bridge, the neutral wire input terminal is connected to the other end of the second resistor and the second input terminal of the first rectifier bridge, the first output terminal of the first rectifier bridge is connected to one end of the temperature control switch, one end of the sixth resistor, one end of the first capacitor, one end of the seventh resistor and the ground terminal, and the second output terminal of the first rectifier bridge is connected to one end of the third resistor, one end of the fourth resistor and the positive terminal of the first LED light group. The other end of the third resistor is connected to one end of the fifth resistor, the other end of the sixth resistor, and the second pin of the constant current chip, respectively. The other end of the fourth resistor is connected to the first pin of the constant current chip. The other end of the fifth resistor is connected to the other end of the temperature control switch. The other end of the first capacitor is connected to the third pin of the constant current chip. The other end of the seventh resistor is connected to the fourth pin of the constant current chip. The negative terminal of the first LED group is connected to the positive terminal of the second LED group and the eighth pin of the constant current chip, the negative terminal of the second LED group is connected to the positive terminal of the third LED group and the seventh pin of the constant current chip, the negative terminal of the third LED group is connected to the positive terminal of the fourth LED group and the sixth pin of the constant current chip, and the negative terminal of the fourth LED group is connected to the fifth pin of the constant current chip.

4. An underwater LED light according to claim 1, characterized in that, The temperature control switch is a normally closed self-resetting temperature control switch.

5. An underwater LED light according to claim 1, characterized in that, The lamp housing is a titanium alloy component.

6. An underwater LED light according to claim 1, characterized in that, The front cover is a titanium alloy component.

7. An underwater LED light according to claim 1, characterized in that, The back cover is made of titanium alloy.

8. An underwater LED light according to claim 1, characterized in that, The light source includes a COB light source.

9. An underwater LED light according to claim 1, characterized in that, The second mounting cavity is filled with power supply potting compound.

10. An underwater LED light according to claim 1, characterized in that, The watertight connector is fixed to the center of the back cover by threads.

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