Damp-proof down lamp
By installing fans with a shared power cord on the downlights to work synchronously, the problem of water vapor discharge from the ceiling is solved, achieving a low-power, low-noise moisture-proof effect and simplifying the installation process.
Patent Information
- Application Number
- CN202423130169.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Water vapor on the bathroom ceiling is difficult to expel effectively, causing water droplets to condense on electrical circuits, shortening their lifespan or causing short circuits. Existing exhaust fans are noisy and consume a lot of electricity.
A fan is installed on the downlight, sharing a power cord with the light source. The fan works synchronously when the downlight is turned on, expelling water vapor through the vent. The integrated lamp housing and reflector structure simplify assembly.
It effectively prevents water vapor condensation, reduces power consumption and noise, prevents damage to electrical circuits, and simplifies the installation process.
Smart Images
Figure CN223537609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to LED lighting fixtures, specifically disclosing a moisture-proof downlight. Background Technology
[0002] Bathroom ceiling panels typically house various electrical appliances such as lights, bathroom heaters, or space heaters. During showering, a large amount of water vapor rises to the ceiling. If this vapor cannot be expelled promptly, it will condense into water droplets that adhere to the electrical wiring, significantly shortening the lifespan of the appliances and potentially causing short circuits. While bathroom exhaust fans have an exhaust function, they are usually installed below the ceiling, making it difficult to remove moisture from above. Furthermore, prolonged operation of exhaust fans is noisy and consumes a lot of electricity. Therefore, it is necessary to develop a simple device to solve these problems. Utility Model Content
[0003] Therefore, it is necessary to provide a downlight that can dehumidify and prevent moisture in the space above the ceiling, addressing the existing technical problems.
[0004] To address the existing technical problems, this utility model discloses a moisture-proof downlight, comprising a cylindrical lamp housing, a fan installed at the upper end of the lamp housing, a reflector installed inside the lamp housing, a light source installed at the bottom of the reflector, a vent hole provided on the side wall of the reflector near the light outlet, a diffuser plate installed between the light source and the vent hole, and the light source and the fan sharing a power cord.
[0005] The beneficial effects of this utility model are as follows: Since a fan is installed on the downlight, and both share a power cord, the fan starts simultaneously when the downlight is turned on. This allows water vapor above the ceiling to be discharged through the vent hole of the reflector cup, maintaining air circulation above the ceiling and preventing water vapor from condensing on the electrical circuits. Furthermore, because the fan has a small power consumption, it has the advantages of low power consumption and low noise. At the same time, the simultaneous start of the fan and the downlight prevents forgetting to operate them.
[0006] As a further improvement to this utility model, the lamp housing and the reflector are integrally formed, and the lower edge of the lamp housing is connected to the edge of the light outlet of the reflector as an integral structure. On the side wall of the reflector, a slot extending circumferentially is provided between the light source and the vent hole, and the diffuser plate is engaged in the slot. The fan includes a housing, a motor installed inside the housing, and fan blades installed on the motor. A protective mesh is provided at the upper end of the housing, and the lower end of the housing is connected to the lamp housing by threads. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the assembly structure of this utility model.
[0008] Figure 2 This is a cross-sectional view of the lamp housing of this utility model.
[0009] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0010] Figure 4 This is a schematic diagram of the assembled structure of this utility model.
[0011] Figure 5 for Figure 4 A schematic diagram of the structure of the BB cross section. Detailed Implementation
[0012] To further understand the features, technical means, specific purposes, and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. The descriptions of component positions (including but not limited to: upper, lower, inner, outer, left, right, etc.) are for reference only when referring to the positions of the components shown in the accompanying drawings. Their purpose is to facilitate understanding of the relative relationships between the components and does not represent an absolute limitation on the scope of protection of this utility model. Those skilled in the art will understand that the description of relative positions may change when the view direction changes, but the essential relative positional relationships between the components remain unchanged.
[0013] refer to Figure 1 A moisture-proof downlight includes a cylindrical lamp housing 1, a fan 2 installed at the upper end of the lamp housing 1, a reflector 3 installed inside the lower end of the lamp housing 1, a light source 4 installed inside the reflector 3, a vent hole 30 provided on the side wall of the reflector 3 near the light outlet, and a diffuser 5 installed between the light source 4 and the vent hole 31.
[0014] refer to Figures 1 to 5The lamp housing 1 and the reflector cup 3 are integrally formed. The lower end of the lamp housing 1 is connected to the light outlet of the reflector cup 3 as an integral structure, which simplifies the assembly process. The upper end of the lamp housing 1 is provided with an external thread 11, the lower outer side of the lamp housing 1 is provided with a flange 12, and the outer side of the lamp housing 1 is provided with a retaining spring 13. The flange 12 and the retaining spring 13 can install the lamp body in the mounting opening of the ceiling. The reflector cup 3 includes a bottom wall 31 and a flared side wall 32. The bottom wall 31 is provided with a wire outlet hole 33. On the inner side of the side wall of the reflector cup 3, between the bottom wall 31 and the vent hole 30, there is a groove 34 extending circumferentially. The diffuser plate 5 is snapped into the groove 34. The light source 4 includes a circuit board 41, LED beads 42 and a power cord 43 mounted on the circuit board 41. The circuit board 41 is mounted on the bottom wall 31 of the reflector cup 3, and the power cord 43 passes through the wire outlet hole 33 and is shared with the fan 2. The fan 2 includes a cylindrical outer shell 21, a motor 22 installed inside the outer shell 21, and fan blades 23 installed on the motor 22. A protective mesh 24 is provided at the upper end of the outer shell 21, and an internal thread 25 is provided at the lower end of the outer shell 21 to mate with the external thread 12 of the lamp housing. The fan outer shell 21 and the lamp housing 1 are connected by the internal and external threads.
[0015] This invention features a fan installed on the downlight, with both sharing a power cord. When the downlight is turned on, the fan also starts simultaneously, allowing water vapor above the ceiling to be expelled through the vent of the reflector cup, maintaining air circulation above the ceiling and preventing water vapor from condensing on the electrical wiring. Furthermore, because the fan has low power consumption and low noise, the simultaneous start of the fan and downlight prevents users from forgetting to operate them.
[0016] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A moisture-proof downlight, characterized in that: The lamp includes a cylindrical lamp housing, a fan mounted on the top of the lamp housing, a reflector installed inside the lamp housing, a light source mounted at the bottom of the reflector, a vent hole provided on the side wall of the reflector near the light outlet, a diffuser plate installed between the light source and the vent hole, and the light source and the fan sharing a power cord.
2. A moisture-proof downlight according to claim 1, characterized in that: The lamp housing and the reflector are integrally formed, and the lower edge of the lamp housing is connected to the edge of the light outlet of the reflector as an integral structure.
3. A moisture-proof downlight according to claim 2, characterized in that: On the side wall of the reflector cup, a slot extending circumferentially is provided between the light source and the vent hole, and the diffuser plate is engaged in the slot.
4. A moisture-proof downlight according to claim 1, characterized in that: The fan includes a housing, a motor installed inside the housing, and fan blades installed on the motor. The upper end of the housing is provided with a protective mesh, and the lower end of the housing is connected to the lamp housing by threads.