Waterproof down lamp for bathroom

Abstract

The application discloses a waterproof cylinder lamp for bathroom, relates to the technical field of cylinder lamps, and solves the technical problem of light source substrate damage caused by long-time use, loose spring sheet, leakage and poor heat dissipation, and comprises a lamp shade, a light source substrate, a conical reflecting cup, a panel and a heat sink, both sides of the lamp shade are provided with working grooves, spring sheets are fixedly connected in the two working grooves through bolts, slidable sliding seats are arranged in the two working grooves, vertical springs are fixedly connected to the top of the two sliding seats, limiting support blocks are rotatably connected to one side of the two sliding seats, and the two limiting support blocks are matched with the two spring sheets respectively, the application forms continuous and stable abutting effects on the spring sheets on both sides of the cylinder lamp, the spring sheets are kept in an effective limiting state all the time, and thus the problem that the cylinder lamp is caused to slide downward or obvious gaps are caused due to slow resetting of the spring sheet, gradually increased bending angles and the like in a long-term use process is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of downlight technology, specifically a waterproof downlight for bathrooms. Background Technology

[0002] Downlights are a type of lighting fixture that is embedded in the ceiling and projects light downwards. This type of concealed lighting fixture, installed inside the ceiling, projects all light downwards, which is a direct light distribution.

[0003] Existing waterproof downlights for bathrooms are installed by drilling a hole in the bathroom ceiling, placing the downlight inside, and then using spring clips on both sides of the downlight to lock and fix it in place.

[0004] During the installation of downlights, the spring clips can fit against both sides of the downlight, making it easy to insert and remove the downlight. However, when fixing the downlight, the spring clips rely solely on their pre-set bending deformation to limit the downlight's position within the opening. After prolonged use or repeated disassembly and installation, stress relaxation occurs at the bending position of the spring clips, resulting in a larger bending angle. This causes the downlight to slowly descend within the opening, creating a gap between the downlight and the ceiling. This gap gradually widens, eventually allowing steam from the bathroom to enter above the ceiling and dust from inside the ceiling to leak out.

[0005] Furthermore, during the use of downlights, in order to ensure their safety in humid environments, downlights are usually kept in a sealed state. However, during long-term lighting, even if the downlight has a heat dissipation structure on the top, its actual heat dissipation effect is still not ideal. Overheating accumulates inside the downlight over a long period of time, which can cause the internal light source substrate to be damaged due to high temperature.

[0006] Based on this, the present invention provides a waterproof downlight for bathrooms to solve the above problems. Summary of the Invention

[0007] In view of the above situation and to overcome the defects of the prior art, the present invention provides a waterproof downlight for bathrooms. The present invention has a novel structure and ingenious design, and effectively solves the technical problems of loosening and leakage of spring contacts and damage to the light source substrate caused by poor heat dissipation after long-term use of waterproof downlights.

[0008] A waterproof downlight for bathroom use includes a lampshade, a light source substrate, a conical reflector, a panel, and a heat sink. The lampshade has working grooves on both sides, and each working groove contains a spring piece fixedly connected by bolts. Each working groove also contains a sliding seat, and each sliding seat has a vertical spring fixedly connected to its top. Each sliding seat has a limiting block rotatably connected to one side, and each limiting block engages with one of the spring pieces.

[0009] Preferably, each of the two sliding seats has a placement groove on the side away from each other, and an oblique spring is fixedly connected to one side of each of the two placement grooves. Each of the two limiting blocks has a fixing hole on one side, and the other end of each of the two oblique springs is fixedly connected to the two fixing holes respectively.

[0010] Preferably, a heat sink is fixedly connected to the top of the lampshade, and multiple ventilation holes are provided at the bottom of the heat sink. A rotatable baffle is provided in each of the multiple ventilation holes. A magnetic block is fixedly connected to one side of each of the multiple baffles, and an electromagnet is fixedly connected to the bottom of one side of each of the multiple ventilation holes. The multiple electromagnets cooperate with the multiple magnetic blocks respectively.

[0011] Preferably, a rotating rod is fixedly connected to each of the plurality of ventilation holes, and the plurality of baffles are rotatably connected to the plurality of rotating rods, with torsion springs sleeved on the plurality of rotating rods.

[0012] Preferably, a dust cover is provided on the ventilation hole, and a dust plate is fixed on the heat sink and placed next to the ventilation hole.

[0013] Preferably, the panel is fixedly connected to the bottom of the lampshade by a rubber sealing ring, and connecting sheet metal is fixedly connected to the bottom of both sides of the lampshade. The conical reflector is fixedly connected to the bottom of the two connecting sheet metals.

[0014] Preferably, a reflector is fixedly connected inside the lampshade, and insulating silicone is provided on the light source substrate.

[0015] The present invention has the following technical effects.

[0016] 1. This invention, through a sliding seat, a vertical spring, a limiting block, and an oblique spring, allows the downlight to be placed into the mounting hole in the ceiling. This provides a continuous and stable clamping force on the spring pieces on both sides of the downlight, keeping the spring pieces in an effective limiting state. This effectively prevents the downlight from sliding down or creating obvious gaps due to the spring pieces slowly returning to their original position and the bending angle gradually increasing during long-term use. It ensures a firm and reliable fit between the downlight and the ceiling.

[0017] 2. This invention utilizes ventilation holes, a baffle plate, a magnetic block, and an electromagnet. During the illumination process of the downlight, the electromagnet generates magnetic force to drive the baffle plate to automatically rotate and open at the ventilation hole, creating ventilation space and forming an air circulation channel inside and outside the lampshade. Combined with the heat sink, it actively ventilates and dissipates heat inside the lampshade, significantly improving the efficiency of heat conduction and dissipation from the light source substrate to the outside, avoiding heat accumulation, and thus significantly extending the service life of the light source substrate.

[0018] 3. This invention uses insulating silicone to physically isolate and block the light source substrate, effectively preventing leakage accidents caused by moisture or aging. The reflector reflects the scattered light emitted by the light source to the light-emitting direction, reducing light loss in the non-light-emitting direction. The rubber sealing ring tightly seals all joints of the lampshade, strongly preventing water vapor in the bathroom from entering the lampshade. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the assembly structure of the spring sheet, sliding seat and slide rail in this invention;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the lampshade, connecting sheet metal, and heat sink in this invention;

[0023] Figure 4 This is a schematic diagram of the assembly structure of the conical reflector, spring, and reflector in this invention;

[0024] Figure 5 This is a schematic diagram of the assembly structure of the sliding seat, support rod, limiting block and oblique spring in this invention;

[0025] Figure 6 This is a schematic diagram of the assembly structure of the heat sink and ventilation holes in this invention;

[0026] Figure 7 This is a schematic diagram of the assembly structure of the heat sink, light source substrate, and insulating silicone in this invention;

[0027] Figure 8 This is a schematic diagram of the assembly structure of the ventilation hole, the baffle plate, the rotating rod and the torsion spring in this invention.

[0028] Reference numerals: 1. Lampshade; 2. Connecting sheet metal; 3. Conical reflector; 4. Panel; 5. Rubber sealing ring; 6. Working groove; 7. Spring; 8. Slide rail; 9. Sliding seat; 10. Slide groove; 11. Vertical spring; 12. Storage groove; 13. Support rod; 14. Limiting block; 15. Placement groove; 16. Angled spring; 17. Fixing hole; 18. Heat sink; 19. Light source substrate; 20. Insulating silicone; 21. Ventilation hole; 22. Rotating rod; 23. Baffle plate; 24. Magnetic block; 25. Electromagnet; 26. Cylinder; 27. Support plate; 28. Torsion spring; 29. ​​Reflector; 30. Dust cover; 31. Dustproof plate. Detailed Implementation

[0029] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 8 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0030] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0031] This invention relates to a waterproof downlight for bathroom use, comprising a lampshade 1, a light source substrate 19, a conical reflector 3, a panel 4, and a heat sink 18. The lampshade 1 has working grooves 6 on both sides, and each working groove 6 is fixedly connected to a spring piece 7 by bolts. The spring piece 7 has multiple bending positions. Each working groove 6 has a sliding seat 9, which is located above the spring pieces 7. Each sliding seat 9 has a storage groove 12 on its top. The storage groove 12 is cylindrical. Vertical springs 11 are fixedly connected to the bottom of the slot 12. The tops of the two vertical springs 11 are fixedly connected to the tops of the two working slots 6 respectively. Support rods 13 are fixedly connected to one side of the two sliding seats 9. A slot is opened on one side of the sliding seat 9, and the support rods 13 are fixed in the slot. Limiting blocks 14 are rotatably connected to the two support rods 13. The limiting blocks 14 can be stored in the working slots 6 along with the sliding seats 9. The bottom of the limiting blocks 14 is arc-shaped. The two limiting blocks 14 cooperate with the two spring pieces 7 respectively.

[0032] In this embodiment, after the holes for installing the downlight are made in the bathroom ceiling, the worker first pushes the two limiting blocks 14, causing them to rotate on the support rod 13 and enter the working groove 6. During the pushing process, the sliding seat 9 gradually moves upward in the working groove 6, while squeezing the vertical spring 11 in the storage groove 12, causing the vertical spring 11 to deform and generate a reverse force. When the two limiting blocks 14 are fully pushed into the working groove 6, the two spring pieces 7 are flipped upward, so that the spring pieces 7 fixed on both sides of the lampshade 1 are tightly attached to the two sides of the two limiting blocks 14. After they are tightly attached, the downlight can be pushed into the installation hole in the ceiling.

[0033] As the downlight is gradually pushed in, silicone is filled between the conical reflector 3 and the ceiling, and the conical reflector 3 is pushed to make the silicone adhere tightly to the ceiling surface. When the downlight is fully pushed in, the spring 7 is no longer subject to external constraints, and thus bends to the sides to reset. The bending position of the spring 7 provides initial positioning for the downlight. After the spring 7 resets, the vertical spring 11 pushes the sliding seat 9 to move downward in the working groove 6. At the same time, the limiting block 14 rotates in the opposite direction on the support rod 13 and resets. The sliding seat 9 drives the limiting block 14 to gradually descend until the bottom of the limiting block 14 abuts against the spring 7, thereby assisting in further positioning and fixing the downlight, effectively preventing the downlight from sliding down during long-term use.

[0034] When the downlight needs to be removed for replacement, the worker pulls the conical reflector cup 3 to remove the silicone. The spring piece 7 is squeezed by the edge of the mounting hole on the ceiling and bends and retracts towards the inside of the lampshade 1. As the spring piece 7 approaches the lampshade 1, it will fit against the limiting block 14 and push the limiting block 14 back into the working groove 6 to release the auxiliary limiting state. Then the downlight can be completely pulled out to complete the disassembly operation.

[0035] As an example, each of the two sliding seats 9 has a placement groove 15 on the side away from each other. The placement groove 15 is inclined on the sliding seat 9. An inclined spring 16 is fixedly connected to one side of each of the two placement grooves 15. The inclined spring 16 is a soft spring. A fixing hole 17 is opened on one side of each of the two limiting blocks 14. The other end of the two inclined springs 16 is fixedly connected to the two fixing holes 17 respectively.

[0036] As an example, each of the two working slots 6 is fixedly connected to a slide rail 8 on one side, and each of the two sliding seats 9 is provided with a slide groove 10 on the other side. The two sliding seats 9 are slidably connected to the two slide rails 8 through the slide groove 10 respectively.

[0037] In this embodiment, during the process of the sliding seat 9 rising or falling in the working groove 6, the sliding seat 9 cooperates with the slide rail 8 through the slide groove 10 provided on one side, so as to slide smoothly on the slide rail 8, thereby effectively guiding and limiting the sliding seat 9 during the rise or fall. When the downlight is placed into the mounting hole on the ceiling, the limiting block 14 needs to be pushed into the working groove 6. During this process, the limiting block 14 rotates on the support rod 13 and squeezes the inclined spring 16, so that the inclined spring 16 generates a reverse force. After the downlight is completely pushed into the mounting hole, the inclined spring 16 is no longer subjected to external pushing force, and its own accumulated reverse force will push the limiting block 14 out of the working groove 6, thereby pressing the spring piece 7.

[0038] As an example, a heat sink 18 is fixedly connected to the top of the lampshade 1. A plurality of ventilation holes 21 are provided at the bottom of the heat sink 18. The plurality of ventilation holes 21 are evenly distributed on the heat sink 18 and are connected to the inside of the lampshade 1. A rotatable baffle plate 23 is provided in each of the plurality of ventilation holes 21. The baffle plate 23 is circular and matches the ventilation hole 21. A sealing gasket is provided on the edge of the baffle plate 23. A magnetic block 24 is fixedly connected to one side of each of the plurality of baffle plates 23. An electromagnet 25 is fixedly connected to the bottom of one side of each of the plurality of ventilation holes 21. The plurality of electromagnets 25 cooperate with the plurality of magnetic blocks 24 respectively.

[0039] As one embodiment, a rotating rod 22 is fixedly connected to each of the multiple ventilation holes 21, and multiple baffles 23 are rotatably connected to the multiple rotating rods 22 respectively. The center of the baffles 23 coincides with the center of the rotating rods 22. A support plate 27 is fixedly connected to each of the multiple rotating rods 22. The support plate 27 is circular. A cylinder 26 is fixedly connected to each of the multiple baffles 23. The shape and size of the support plate 27 are equal to the inner diameter of the cylinder 26. Torsion springs 28 are fixedly connected to both sides of the cylinder 26. The other ends of the two torsion springs 28 are fixedly connected to both sides of the support plate 27 respectively.

[0040] As one embodiment, a dust cover 30 is provided on the ventilation hole 21, and a dust plate 31 placed next to the ventilation hole 21 is fixed on the heat sink 18.

[0041] In this embodiment, when the downlight is powered on, the electromagnet 25 is simultaneously powered on, and the electromagnet 25 immediately generates magnetism, forming an attractive force on the magnetic block 24 on one side of the baffle 23. Under the action of this attractive force, the magnetic block 24 drives the baffle 23 to rotate 60-80 degrees around the rotating rod 22. During the rotation of the baffle 23, the cylinder 26 rotates synchronously with the baffle 23, and at the same time, the torsion spring 28 is twisted, so that the torsion spring 28 generates a reverse force, thereby opening up the ventilation space of the ventilation hole 21, and thus effectively ventilating and dissipating heat inside the lampshade 1. With the use of the heat sink 18, the heat dissipation effect of the downlight can be significantly improved, and heat accumulation can be avoided.

[0042] When the downlight is turned off, the electromagnet 25 is also de-energized. The electromagnet 25 no longer attracts the magnetic block 24. At this time, the cylinder 26 is only subjected to the reverse force stored in the torsion spring 28. Driven by this force, the cylinder 26 drives the baffle plate 23 to rotate in the opposite direction around the rotating rod 22 to reset, thereby completing the re-blocking of the ventilation hole 21 and effectively preventing dust from entering the lampshade 1.

[0043] When the baffle 23 is opened, the dust cover 30 on the ventilation hole 21 can effectively prevent dust from entering, and the dust cover 31 can also effectively prevent dust from entering the ventilation hole 21.

[0044] It should be noted that the electromagnet 25 is connected to a power supply and a controller, which are existing technologies and therefore not described in detail.

[0045] As an example, panel 4 is fixedly connected to the bottom of lampshade 1 by rubber sealing ring 5, and connecting sheet metal 2 is fixedly connected to the bottom of both sides of lampshade 1. Conical reflector cup 3 is fixedly connected to the bottom of the two connecting sheet metal 2.

[0046] As an example, a reflector 29 is fixedly connected inside the lampshade 1, and an insulating silicone 20 is provided on the light source substrate 19. The heat sink 18, the light source substrate 19, the insulating silicone 20, the reflector 29, the panel 4, and the conical reflector cup 3 are distributed vertically.

[0047] In this embodiment, the rubber sealing ring 5 seals the area between the panel 4 and the lampshade 1, effectively preventing moisture from entering the lampshade 1 from the bottom and preventing corrosion damage to the light source substrate 19. The reflector 29 refracts the light, reducing light loss.

[0048] Working principle of this invention:

[0049] In use, first push the two limiting blocks 14 to rotate on the support rod 13 and enter the working groove 6, simultaneously compressing the inclined spring 16. As the limiting blocks 14 enter the working groove 6, the sliding seat 9 is further pushed upwards within the working groove 6, thereby compressing the vertical spring 11 at the top of the sliding seat 9. Once the limiting blocks 14 are fully pushed into the working groove 6, press the two spring pieces 7 to make them fit against the sides of the two limiting blocks 14. Then, push the lampshade 1 into the mounting hole opened in the ceiling. After the downlight is inserted into place, the two spring pieces 7 are no longer constrained by external forces, thus resetting and unfolding. The downlight is initially limited and fixed by the bending position on the spring piece 7. After the spring piece 7 is reset, the oblique spring 16 pushes the limiting block 14 outward from the working groove 6 to reset. At the same time, the vertical spring 11 pushes the sliding seat 9 to move downward in the working groove 6. The sliding seat 9 drives the limiting block 14 to descend together until the limiting block 14 contacts the spring piece 7, thereby assisting the spring piece 7 to further limit the downlight and effectively prevent the downlight from sliding down during use.

[0050] When the downlight is powered on, the electromagnet 25 is powered, and the electromagnet 25 attracts the magnetic block 24, thereby causing the baffle plate 23 to rotate on the rotating rod 22. The cylinder 26 drives the torsion spring 28 to undergo elastic deformation, causing the torsion spring 28 to accumulate a reverse force, while opening up ventilation space in the ventilation hole 21, thus effectively ventilating and dissipating heat inside the lampshade 1. When the downlight is used up and the power is turned off, the electromagnet 25 is simultaneously de-energized, and the electromagnet 25 no longer attracts the magnetic block 24. At this time, the baffle plate 23 rotates in the opposite direction and resets under the drive of the reverse force accumulated by the torsion spring 28, and the baffle plate 23 covers the ventilation hole 21 again, effectively preventing dust from entering the lampshade 1.

[0051] When it is necessary to disassemble the downlight, pull the conical reflector 3 at the bottom, and use the mounting hole on the ceiling to limit the spring 7, so that the spring 7 is squeezed and moves towards the lampshade 1. During the process of moving towards the lampshade 1, the spring 7 will squeeze the limiting block 14, so that it re-enters the working groove 6 and squeezes the inclined spring 16, thereby releasing the auxiliary limiting state, so that the downlight can be easily removed from the mounting hole opened in the ceiling.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waterproof downlight for bathroom use, comprising a lampshade (1), a light source substrate (19), a conical reflector (3), a panel (4), and a heat sink (18), characterized in that, The lampshade (1) has working grooves (6) on both sides. Each of the two working grooves (6) is fixedly connected with a spring piece (7) by bolts. Each of the two working grooves (6) is provided with a sliding seat (9) that can slide. Each of the two sliding seats (9) is fixedly connected with a vertical spring (11) on the top. Each of the two sliding seats (9) is rotatably connected with a limit block (14) on one side. Each of the two limit blocks (14) cooperates with the two spring pieces (7) respectively. Each of the two sliding seats (9) has a placement groove (15) on one side away from each other. Each of the two placement grooves (15) is fixedly connected to a slanted spring (16). Each of the two limiting blocks (14) has a fixing hole (17) on one side. The other ends of the two slanted springs (16) are respectively fixedly connected in the two fixing holes (17).

2. A waterproof downlight for bathrooms according to claim 1, characterized in that, The top of the lampshade (1) is fixedly connected to a heat sink (18), and the bottom of the heat sink (18) is provided with multiple ventilation holes (21). Each of the multiple ventilation holes (21) is provided with a rotatable baffle plate (23). Each of the multiple baffle plates (23) is fixedly connected to a magnetic block (24) on one side. Each of the multiple ventilation holes (21) is fixedly connected to an electromagnet (25) on the bottom side of one side. Each of the multiple electromagnets (25) cooperates with the multiple magnetic blocks (24).

3. A waterproof downlight for bathrooms according to claim 2, characterized in that, A rotating rod (22) is fixedly connected inside each of the multiple ventilation holes (21), and multiple shields (23) are rotatably connected to the multiple rotating rods (22), and torsion springs (28) are sleeved on the multiple rotating rods (22).

4. A waterproof downlight for bathrooms according to claim 3, characterized in that, A dust cover (30) is provided on the ventilation hole (21), and a dust plate (31) is fixed on the heat sink (18) and placed next to the ventilation hole (21).

5. A waterproof downlight for bathrooms according to claim 1, characterized in that, The panel (4) is fixedly connected to the bottom of the lampshade (1) by a rubber sealing ring (5). Both sides of the bottom of the lampshade (1) are fixedly connected to connecting sheet metal (2). The conical reflector (3) is fixedly connected to the bottom of the two connecting sheet metal (2).

6. A waterproof downlight for bathrooms according to claim 1, characterized in that, A reflector (29) is fixedly connected inside the lampshade (1), and insulating silicone (20) is provided on the light source substrate (19).

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