Underwater spotlighting lamp
By separating the light source and power components in the underwater lamp and conducting heat dissipation separately, the problem of poor heat dissipation performance of underwater lamps is solved, extending the service life and improving lighting effect and safety.
Patent Information
- Application Number
- CN202422116260.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-29
AI Technical Summary
Underwater lamps have poor heat dissipation performance in underwater environments, resulting in an increase in the temperature of light source and power supply components, affecting service life and lighting effects.
By separating the light source assembly and the power supply assembly in different cavitys and using heat dissipation parts to conduct heat to the external environment, using compressive materials and heat dissipation aluminum blocks with good thermal conductivity, the contact area and contact efficiency are increased, and combined with sealing structure and insulation design, the heat is effectively dissipated.
It effectively avoids the accumulation of heat from the light source and power supply components, extends the service life of the lamp, ensures working at the right temperature, and improves lighting effect and safety.
Smart Images
Figure CN223153517U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underwater lighting, in particular to an underwater spotlighting lamp. Background Art
[0002] At present, underwater lamps are widely used in many fields and show their unique advantages. They can be used in applications such as underwater museum exhibition lighting, underwater maintenance and repair of nuclear power plants and hydropower stations, or aquaculture. Underwater lamps generally have a pressure-resistant housing, a light source and a control power supply, and the light source and the control power supply are installed in the pressure-resistant housing.
[0003] When the underwater lamp emits light, both the light source and the power supply will generate heat. However, due to the relatively closed underwater environment, the heat generated by the underwater lamp is not easily dissipated, resulting in poor heat dissipation performance of the underwater lamp. When used for a long time, the temperature of the lamp is likely to rise, thus affecting the service life and lighting effect of the lamp. Content of the Utility Model
[0004] In order to solve the defects of the prior art, the utility model provides an underwater spotlighting lamp, which can separate the heat generated when the power supply component works from the heat generated when the light source component works, and conduct heat dissipation separately, ensuring that the light source component and the power supply component work at an appropriate temperature, effectively extending the service life of the lamp, and ensuring its lighting effect.
[0005] In order to solve the above technical problems, the utility model provides an underwater spotlighting lamp, including:
[0006] A barrel body, which forms a first opening and a second opening;
[0007] A heat dissipation member, which is tightly connected to the barrel body. The heat dissipation member is used to separate the interior of the barrel body into an optical cavity and a power supply cavity; a light source component is connected to the side of the heat dissipation member facing the optical cavity, a power supply component is connected to the side of the heat dissipation member facing the power supply cavity, and the light source component is electrically connected to the power supply component;
[0008] A first sealing cover, which is sealingly connected to the first opening;
[0009] A second sealing cover, which is sealingly connected to the second opening.
[0010] Wherein, a heat dissipation connection surface is formed on the side surface of the heat dissipation member, and the heat dissipation member is tightly connected to the barrel body through the heat dissipation connection surface;
[0011] Wherein, the heat dissipation connection surface is a threaded surface formed on the side surface of the heat dissipation member, an internal thread is formed on the inner wall of the barrel body, and the threaded surface is threadedly connected to the internal thread;
[0012] Or, the inner wall of the barrel is formed with a plurality of convex table surfaces, the heat dissipation connection surface is a plurality of groove surfaces formed on the side surface of the heat dissipation element, and the groove surfaces are matched and connected with the convex table surfaces;
[0013] The side surface of the heat sink is also formed with an avoidance surface, the avoidance surface forms a preset angle with the groove surface, a gap is formed between the avoidance surface and the inner wall of the barrel, and the gap is filled with heat-insulating glue.
[0014] Wherein, a plurality of heat dissipation grooves are formed on the outer wall surface of the barrel, and the heat dissipation grooves are aligned with the heat dissipation connection surface.
[0015] Wherein, the light source assembly includes a light source, a light source fixing frame and a lens, the light source is fixed to the side of the heat sink facing the optical cavity through the light source fixing frame, the light source fixing frame is provided with a light source hole, the light-emitting part of the light source is located in the light source hole, the lens is fixed to the light source fixing frame, and the lens is coaxial with the light source hole.
[0016] Wherein, the light source assembly further comprises a reflective cup and a lens, one end of the reflective cup is covered on the lens, the other end of the reflective cup is fixed to the first opening, and the lens is arranged between the first sealing cover and the first opening.
[0017] Wherein, the power supply assembly includes a driving power supply and a power supply fixing frame, the driving power supply is arranged on the power supply fixing frame, and the power supply fixing frame is insulated and connected to a side of the heat sink facing the power supply cavity;
[0018] The output end of the driving power supply is connected to the light source assembly through a connecting wire, the heat sink is provided with an opening, the inner side wall of the opening is provided with an insulating sleeve, and the connecting wire is passed through the opening.
[0019] Wherein, the power cavity is filled with power potting glue.
[0020] Wherein, the second sealing cover is provided with a watertight connector, and the watertight connector is connected to the input end of the driving power supply.
[0021] Wherein, a first sealing ring is arranged between the first sealing cover and the first opening, and a second sealing ring is arranged between the second sealing cover and the second opening.
[0022] Among them, it also includes:
[0023] The bracket is provided with a mounting boss on the outer wall of the barrel, and the bracket is connected to the mounting boss by bolts.
[0024] The implementation of this utility model has the following beneficial effects:
[0025] The underwater spotlighting lighting fixture of the present utility model divides the interior of the barrel into an optical cavity and a power supply cavity through a heat dissipation component, sets the light source assembly on one side of the heat dissipation component facing the light source cavity, and sets the power supply assembly on one side of the heat dissipation component facing the power supply cavity, so as to separate the power supply assembly and the light source assembly through the heat dissipation component, thereby separating the heat generated when the power supply assembly works and the heat generated when the light source assembly works, effectively avoiding the accumulation of the two parts of heat and causing the temperature of the underwater spotlighting lighting fixture to rise.
[0026] Meanwhile, the heat dissipation component is used to conduct heat dissipation for the two parts of heat respectively, so as to conduct the two parts of heat to the external environment underwater through the heat dissipation component and the barrel, enabling the underwater spotlighting lighting fixture to work at an appropriate temperature, avoiding the accelerated aging of the light source assembly and the power supply assembly when working in a high-temperature environment, thereby effectively extending the service life of the lighting fixture and ensuring its lighting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a schematic three-dimensional structure diagram of the underwater spotlighting lighting fixture of the present utility model;
[0028] Figure 2 is an exploded structure diagram of the underwater spotlighting lighting fixture of the present utility model;
[0029] Figure 3 is a schematic cross-sectional structure diagram of the underwater spotlighting lighting fixture of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in the text of the present utility model are only based on the drawings of the present utility model, and they do not specifically limit the present utility model.
[0031] The underwater spotlighting lighting fixture provided by the present utility model can separate the heat generated when the power supply assembly 4 works and the heat generated when the light source assembly 3 works, conduct heat dissipation for the two parts of heat respectively, avoid the accumulation of the two parts of heat and causing the temperature of the underwater spotlighting lighting fixture to rise, ensure that the light source assembly 3 and the power supply assembly 4 work at an appropriate temperature, effectively extend the service life of the lighting fixture, and ensure its lighting effect.
[0032] In a specific embodiment of the present utility model, as Figures 1 to 3As shown in the figure, the underwater spotlighting lighting fixture includes a barrel body 1, a heat dissipation component 2, a first sealing cover 5 and a second sealing cover 6. The barrel body 1 is formed with a first opening 11 and a second opening 12. The heat dissipation component 2 is tightly connected to the barrel body 1. The heat dissipation component 2 is used to divide the interior of the barrel body 1 into an optical cavity 13 and a power supply cavity 14. A light source assembly 3 is connected to one side of the heat dissipation component 2 facing the light source 31 cavity, and a power supply assembly 4 is connected to one side of the heat dissipation component 2 facing the power supply cavity 14. The light source assembly 3 is electrically connected to the power supply assembly 4. The first sealing cover 5 is sealingly connected to the first opening 11, and the second sealing cover 6 is sealingly connected to the second opening 12.
[0033] For the underwater spotlighting lighting fixture of the present utility model, the heat dissipation component 2 divides the interior of the barrel body 1 into an optical cavity 13 and a power supply cavity 14, and the light source assembly 3 is arranged on one side of the heat dissipation component 2 facing the optical cavity 13, and the power supply assembly 4 is arranged on one side of the heat dissipation component 2 facing the power supply cavity 14, so as to separate the power supply assembly 4 and the light source assembly 3 through the heat dissipation component 2, thereby separating the heat generated when the power supply assembly 4 works and the heat generated when the light source assembly 3 works, effectively avoiding the accumulation of heat in the two parts and causing the temperature of the underwater spotlighting lighting fixture to rise.
[0034] At the same time, the heat dissipation component 2 is used to conduct and dissipate the heat of the two parts respectively, so as to conduct the heat of the two parts to the external environment underwater through the heat dissipation component 2 and the barrel body 1, so that the underwater spotlighting lighting fixture can work at a suitable temperature, avoid the light source assembly 3 and the power supply assembly 4 working in a high-temperature environment and accelerating aging, thereby effectively extending the service life of the lighting fixture and ensuring its lighting effect.
[0035] Specifically, the barrel body 1, the first sealing cover 5 and the second sealing cover 6 are all cylindrical. The first sealing cover 5, the second sealing cover 6 and the barrel body 1 are all made of pressure-resistant materials, that is, the exposed parts of the underwater spotlighting lighting fixture are all made of pressure-resistant materials. The pressure-resistant material is preferably a special alloy metal material such as titanium alloy or nickel-chromium-titanium alloy steel, so as to ensure that the underwater spotlighting lighting fixture can withstand the underwater pressure, protect the light source assembly 3 and the power supply assembly 4 inside the barrel body 1, and ensure that the underwater spotlighting lighting fixture can be used underwater for a long time.
[0036] The heat dissipation component 2 is preferably a heat dissipation aluminum block, so as to utilize the heat conduction performance of the aluminum block to conduct the heat generated by the light source assembly 3 and the power supply assembly 4, thereby uniformly transferring the heat to the barrel body 1 and effectively improving the overall heat dissipation effect of the underwater spotlighting lighting fixture.
[0037] Among them, as Figure 2 and Figure 3 shown, a heat dissipation connection surface 21 is formed on the side surface of the heat dissipation component 2. The heat dissipation component 2 is tightly connected to the barrel body 1 through the heat dissipation connection surface 21. The contact area between the heat dissipation component 2 and the barrel body 1 is increased through the heat dissipation connection surface 21 to improve the heat conduction efficiency between the heat dissipation component 2 and the barrel body 1, and further improve the heat dissipation effect of the underwater spotlighting lighting fixture.
[0038] To ensure that the heat dissipation component 2 can conduct heat to the barrel body 1 through the heat dissipation connection surface 21, the heat dissipation connection surface 21 can be formed in the following ways:
[0039] In the first formation method, the heat dissipation connection surface 21 is a threaded surface formed on the side surface of the heat dissipation component 2, and an internal thread is formed on the inner wall of the barrel body 1, and the threaded surface is threadedly connected to the internal thread. Furthermore, while ensuring that the heat dissipation component 2 can be tightly connected to the barrel body 1 through the threaded surface, the contact area between the heat dissipation component 2 and the barrel body 1 is increased, thereby effectively reducing the thermal resistance between the heat dissipation component 2 and the barrel body 1, and ensuring good contact between the heat dissipation component 2 and the barrel body 1, which can effectively ensure the heat transfer between the heat dissipation component 2 and the barrel body 1.
[0040] In the second formation method, a plurality of convex table surfaces are formed on the inner wall of the barrel body 1, and the heat dissipation connection surface 21 is a plurality of groove surfaces formed on the side surface of the heat dissipation component 2, and the groove surfaces are connected to the convex table surfaces in a matching manner. Using the connection between the groove surfaces and the convex table surfaces to connect the heat dissipation component 2 and the barrel body 1 can also increase the contact area between the heat dissipation component 2 and the barrel body 1, and ensure tight connection between the heat dissipation component 2 and the barrel body 1, thereby reducing the thermal resistance and effectively ensuring the heat transfer between the heat dissipation component 2 and the barrel body 1.
[0041] To facilitate the connection between the groove surface and the convex table surface, an avoidance surface is further formed on the side surface of the heat dissipation component 2, and the avoidance surface forms a preset angle with the groove surface. A gap is formed between the avoidance surface and the inner wall of the barrel body 1, and the gap is filled with heat insulation glue. Preferably, the preset angle between the avoidance surface and the groove surface is 120°. When fixing the heat dissipation component 2 to the barrel body 1, the avoidance surface of the heat dissipation component 2 can be made to face the convex table surface, and then the heat dissipation component 2 is rotated by a preset angle, and the groove surface of the heat dissipation component 2 is snapped into the convex table surface, and the connection between the groove surface and the convex table surface can be completed.
[0042] It should be noted here that connection holes are provided at both the convex table and the groove, and the connection holes are threaded holes. When the groove surface is snapped into the convex table surface, bolts or studs can be passed through the connection holes of the convex table and the groove at the same time to connect the heat dissipation component 2 and the barrel body 1.
[0043] Furthermore, as shown in Figure 2 and Figure 3 , a plurality of heat dissipation grooves 16 are formed on the outer wall surface of the barrel body 1, and the heat dissipation grooves 16 are aligned with the heat dissipation connection surface 21, so as to increase the contact area between the outer wall surface of the barrel body 1 and the external environment through the heat dissipation grooves 16, and further increase the heat dissipation area between the barrel body 1 and the external environment, thereby enhancing the heat dissipation efficiency of the underwater spotlight. And because the heat dissipation grooves 16 are aligned with the heat dissipation connection surface 21, the conduction distance of the heat conducted by the heat dissipation component 2 in the barrel body 1 is effectively reduced, and the heat dissipation efficiency of the underwater spotlight is further increased.
[0044] In an embodiment of the present utility model, as Figure 2 and Figure 3 shown, the light source assembly 3 includes a light source 31, a light source fixing bracket 32, and a lens 33. The light source 31 is fixed to one side of the heat dissipation member 2 facing the optical cavity 13 through the light source fixing bracket 32, so that the light source 31 can be in direct contact with the heat dissipation member 2, thereby facilitating the heat dissipation member 2 to absorb and conduct the heat generated by the light source 31, and ensuring the heat conduction and dissipation effect of the heat dissipation member 2.
[0045] The light source fixing bracket 32 is provided with a light source hole 321. The light emitting part of the light source 31 is located in the light source hole 321. The lens 33 is fixed to the light source fixing bracket 32, and the lens 33 is coaxial with the light source hole 321. Furthermore, the lens 33 can refract and condense the light emitted by the light source 31 from the light source hole 321, so that the light emitted by the light source 31 can propagate at a specific angle and direction after passing through the lens 33, and be concentrated on a specific area, thereby ensuring the light condensing effect of the underwater light condensing lighting fixture and enhancing the light intensity of the underwater light condensing lighting fixture.
[0046] Specifically, in this embodiment, the light source 31 is a COB light source. The LED chip of the COB light source is located in the light source hole 321, and the substrate of the COB light source is fixed to the heat dissipation member 2 through the light source fixing bracket 32, so as to conduct the heat generated by the LED chip to the heat dissipation member 2 through the substrate, and ensure the heat dissipation effect of the heat dissipation member 2 on the light source 31.
[0047] Furthermore, as Figure 2 and Figure 3 shown, the light source assembly 3 further includes a reflector cup 34 and a lens 35. One end of the reflector cup 34 covers the lens 33, the other end of the reflector cup 34 is fixed to the first opening 11, the lens 35 is arranged between the first sealing cover 5 and the first opening 11, and the reflecting surface of the reflector cup 34 faces the lens 33. The reflector cup 34 adjusts the optical path angle of the light emitted by the lens 33 to assist in condensing the light, thereby reducing the loss of light during propagation due to scattering or other optical path phenomena, further reducing the light energy loss, and improving the light energy utilization rate of the underwater light condensing lighting fixture. And the reflector cup 34 can also adjust the edge and vignetting effect of the light, reduce glare and glare sensation, and enhance the visual effect of the underwater light condensing lighting fixture.
[0048] In an embodiment of the present utility model, as Figure 2 and Figure 3As shown, the power supply assembly 4 includes a driving power supply 41 and a power supply fixing bracket 42. The driving power supply 41 is disposed on the power supply fixing bracket 42. The power supply fixing bracket 42 is insulated and connected to the side of the heat dissipation member 2 facing the power supply cavity 14, so as to fix the driving power supply 41 to the heat dissipation member 2 by using the power supply fixing bracket 42. At the same time, a certain gap is formed between the driving power supply 41 and the heat dissipation member 2 to prevent the heat dissipation member 2 from conducting electricity, thereby ensuring that the barrel body 1 does not conduct electricity and guaranteeing the safety of the underwater spotlighting illumination device.
[0049] Specifically, an insulating equal-height column 421 is formed on the side of the power supply fixing bracket 42 facing the power supply cavity 14. The insulating equal-height column 421 is inserted into the heat dissipation member 2 to ensure that the live part is far away from the heat dissipation member 2, guarantee the creepage distance and electrical clearance, and ensure that the underwater illumination device has good insulation.
[0050] The output end of the driving power supply 41 is connected to the light source assembly 3 through a connecting wire. The heat dissipation member 2 is provided with an opening 24, and an insulating sleeve is arranged on the inner wall surface of the opening 24. The connecting wire passes through the opening 24 to realize the power connection of the light source assembly 3 while ensuring the insulating connection between the heat dissipation member 2 and the connecting wire, and further ensuring the insulation safety of the underwater spotlighting illumination device.
[0051] In this embodiment, the power supply cavity 14 is filled with a power supply potting adhesive to conduct the heat generated when the driving power supply 41 generates electricity to the barrel body 1 by using the high thermal conductivity of the power supply potting adhesive, further enhancing the heat dissipation performance of the underwater spotlighting illumination device, and effectively preventing the heat generated by the power supply from increasing the temperature of the power supply cavity 14 and accelerating the aging of the driving power supply 41. In addition, the power supply potting adhesive also has good insulation performance, and the use of the power supply potting adhesive can effectively improve the insulation performance of the underwater spotlighting illumination device and further improve the safety performance of the underwater spotlighting illumination device.
[0052] In this embodiment, as Figures 1 to 3 shown, the second sealing cover 6 is provided with a watertight connecting member 62, and the watertight connecting member 62 is connected to the input end of the driving power supply 41. Therefore, when the underwater spotlighting illumination device is operating underwater, the driving power supply 41 can be connected to an external cable through the watertight connecting member 62 to realize the electrical connection of the underwater spotlighting illumination device. The watertight connecting member 62 can prevent moisture from penetrating into the underwater spotlighting illumination device during underwater operation, thereby improving the electrical safety of the underwater spotlighting illumination device.
[0053] In the embodiment of the present utility model, the first sealing cover 5 is provided with an internal thread, and the end of the barrel body 1 near the first opening 11 is provided with an external thread. The first sealing cover 5 and the barrel body 1 are connected by the internal and external threads; the second sealing cover 6 is provided with an external thread, and the end of the barrel body 1 near the second opening 12 is provided with an internal thread. The second sealing cover 6 and the barrel body 1 are connected by the internal and external threads.
[0054] To ensure the sealed connection between the first sealing cover 5 and the barrel body 1, as well as the sealed connection between the second sealing cover 6 and the barrel body 1, as Figure 2 shown, a first sealing ring 51 is provided between the first sealing cover 5 and the first opening 11, and a second sealing ring 61 is provided between the second sealing cover 6 and the second opening 12. The first sealing ring 51 is used to fill the tiny gap between the first sealing cover 5 and the first opening 11, and the second sealing ring 61 is used to fill the tiny gap between the second sealing cover 6 and the second opening 12, so as to seal-connect the first sealing cover 5 with the barrel body 1 and seal-connect the second sealing cover 6 with the barrel body 1, thereby preventing moisture in the underwater environment from seeping into the interior of the barrel body 1 through the tiny gap, and providing waterproof protection for the light source assembly 3 and the power supply assembly 4 inside the barrel body 1.
[0055] In the embodiment of the present utility model, to facilitate the fixation of the underwater spotlighting and illuminating lamp, as Figures 1 to 3 shown, the underwater spotlighting and illuminating lamp further includes a bracket 7. An installation boss is formed on the outer wall surface of the barrel body 1, and the bracket 7 is bolted to the installation boss. Furthermore, the underwater spotlighting and illuminating lamp can be fixed through the bracket 7, improving the fixation convenience of the underwater spotlighting and illuminating lamp; and when the connection between the bracket 7 and the installation boss is loosened, the barrel body 1 can be rotated relative to the bracket 7, thereby adjusting the installation angle of the barrel body 1, so that the underwater spotlighting and illuminating lamp can meet various lighting scenarios and improve the installation adaptability of the underwater spotlighting and illuminating lamp.
[0056] As can be seen from the above embodiments, the underwater spotlighting and illuminating lamp provided in this embodiment can ensure that the light source assembly 3 and the power supply assembly 4 work at an appropriate temperature, while having simple assembly, good spotlighting effect, adjustable installation angle, and being able to withstand the underwater pressure, so that it can be used underwater for a long time.
[0057] The above is the preferred implementation manner of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.
Claims
1. An underwater spotlight, characterized in that, Comprising: A barrel body, which is formed with a first opening and a second opening; A heat dissipation member, which is tightly connected to the barrel body, and the heat dissipation member is used to divide the interior of the barrel body into an optical cavity and a power supply cavity; a light source assembly is connected to one side of the heat dissipation member facing the optical cavity, a power supply assembly is connected to one side of the heat dissipation member facing the power supply cavity, and the light source assembly is electrically connected to the power supply assembly; A first sealing cover, which is hermetically connected to the first opening; A second sealing cover, which is hermetically connected to the second opening.
2. The underwater spotlight according to claim 1, wherein A heat dissipation connection surface is formed on the side surface of the heat dissipation member, and the heat dissipation member is tightly connected to the barrel body through the heat dissipation connection surface; Wherein, the heat dissipation connection surface is a threaded surface formed on the side surface of the heat dissipation member, an internal thread is formed on the inner wall of the barrel body, and the threaded surface is threadedly connected to the internal thread; Or, a plurality of convex table surfaces are formed on the inner wall of the barrel body, the heat dissipation connection surface is a plurality of groove surfaces formed on the side surface of the heat dissipation member, and the groove surfaces are matingly connected to the convex table surfaces; An avoidance surface is further formed on the side surface of the heat dissipation member, the avoidance surface forms a preset angle with the groove surface, and a gap is formed between the avoidance surface and the inner wall of the barrel body, and the gap is filled with heat insulation glue.
3. The underwater spotlight according to claim 2, characterized in that, A plurality of heat dissipation grooves are formed on the outer wall surface of the barrel body, and the heat dissipation grooves are aligned with the heat dissipation connection surface.
4. The underwater spotlight according to claim 1, wherein, The light source assembly includes a light source, a light source fixing bracket and a lens. The light source is fixed to one side of the heat dissipation member facing the optical cavity through the light source fixing bracket. The light source fixing bracket is provided with a light source hole, and the light emitting part of the light source is located in the light source hole. The lens is fixed to the light source fixing bracket, and the lens is coaxial with the light source hole.
5. The underwater spotlight according to claim 4, characterized in that, The light source assembly further includes a reflecting cup and a lens. One end of the reflecting cup covers the lens, the other end of the reflecting cup is fixed to the first opening, and the lens is arranged between the first sealing cover and the first opening.
6. The underwater spotlight according to claim 1, wherein, The power supply assembly includes a driving power supply and a power supply fixing bracket. The driving power supply is arranged on the power supply fixing bracket, and the power supply fixing bracket is insulatedly connected to one side of the heat dissipation member facing the power supply cavity; The output end of the driving power supply is connected to the light source assembly through a connecting wire. The heat dissipation member is provided with an opening, an insulating sleeve is arranged on the inner side wall of the opening, and the connecting wire passes through the opening.
7. The underwater spotlight according to claim 6, characterized in that, The power supply cavity is filled with power supply potting glue.
8. The underwater spotlight according to claim 6, wherein The second sealing cover is provided with a watertight connecting piece, and the watertight connecting piece is connected to the input end of the driving power supply.
9. The underwater spotlight according to claim 1, characterized in that A first sealing ring is arranged between the first sealing cover and the first opening, and a second sealing ring is arranged between the second sealing cover and the second opening.
10. The underwater spotlight according to claim 1, characterized in that, Further comprising: A bracket, an installation boss is formed on the outer wall surface of the barrel body, and the bracket is bolted to the installation boss.