Bathroom Light

Abstract

To provide a bathroom light in order to solve the technical problem in the technical field of lighting fixtures that the waterproof structure of conventional bathroom lights is insufficient. [Solution] The light-guiding inner cover includes a bottom case, a light source assembly, a light-guiding inner cover, and a transparent outer cover. An engaging portion is provided on the inside of the bottom case. The light-guiding inner cover is fitted into the inside of the bottom case. The light-guiding inner cover is provided with a ribbed step portion (82) that engages with the engaging portion. The light-guiding inner cover includes an annular boss (80) located in the middle, the bottom of which extends downward to form an annular case (85). The ribbed step portion is located on the outer surface of the annular case and has a stepped shape. A waterproof rubber ring is attached between the annular boss and the underside of the ribbed step portion. The ribbed step portion engages with the lower part of the engaging portion on the bottom case. The transparent outer cover is detachably connected to the light-guiding inner cover by a snap-fit ​​structure. The waterproof rubber ring is further compressed during the assembly process, forming a double-sealed structure by the cooperation of the bottom case, the light-guiding inner cover, and the transparent outer cover.

Description

[Technical Field]

[0001] The present invention relates to the technical field of lighting fixtures, and more particularly to bathroom lamps. [Background technology]

[0002] Because bathrooms are relatively sealed, large amounts of high-temperature steam are generated during daily bathing, causing the air to remain saturated for long periods of time. If the lighting fixture is not sealed properly, steam can easily penetrate through the joints, causing dampness in the circuit board, corrosion of components, and a deterioration of insulation performance, leading to safety risks such as short circuits, leakage currents, and even lighting fixture failure. Furthermore, frequent cycles of high and low temperatures accelerate material degradation, further shortening the lighting fixture's service life.

[0003] To solve this problem, improvements have been made to the prior art. For example, Chinese patent publication number CN107676696A discloses an LED bathroom light, and referring to Figures 1 and 2 and paragraph

[0016] of the specification, the LED bathroom light includes a socket 1, an upper end of the socket 1 is provided with a mounting groove 2 and an upper cover 3 that fits into the mounting groove 2, a power supply 4 is provided within the mounting groove 2, mounting lugs 5 are provided on both sides of the socket 1 for fixing to a wall, an LED base 6 is provided at the lower end of the socket 1, and the LED base 6 and the power supply 4 are electrically connected, a lamp cover base 7 is also provided at the lower end of the socket 1, a lamp cover 8 is rotatably connected to the lamp cover base 7 via a rotation shaft 9, and the lamp cover 8 and the lamp cover base 7 are hermetically fitted together, and a hydrophobic protective layer 10 is provided on the outer surface of the lamp cover 8. A hydrophobic protective layer 10 is added to the outside of the lamp cover 8 , and the ends of the lamp cover 8 and the hydrophobic protective layer 10 are connected to the lamp cover base 7 via a gasket 11 .

[0004] However, the space between the lamp cover 8 and the lamp cover base 7 is sealed by only one gasket 11, and no axial restriction, pre-compression structure or secondary crimping sealing mechanism is provided. If the gasket deteriorates, deforms or is not installed in the proper position, the entire sealing system will be invalid and will not be able to meet the high protection level requirements. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention aims to provide a bathroom lamp that solves the technical problem of the insufficient waterproof structure of conventional bathroom lamps. [Means for solving the problem]

[0006] To achieve the above objectives, the specific technical means of the bathroom lamp of the present invention are as follows: The bathroom lamp includes a bottom case, a light source assembly, a light-guiding inner cover, and a transparent outer cover. The bottom case has an engaging portion on the inside thereof. The light-guiding inner cover is fitted into the bottom case. The light-guiding inner cover has a rib-shaped stepped portion that engages with the engaging portion. the light-guiding inner cover includes an annular boss located in the middle, the bottom of the annular boss extending downward to form an annular case, the rib-shaped step portion located on the outer surface of the annular case and having a stepped shape, a waterproof rubber ring attached between the annular boss and the lower surface of the rib-shaped step portion, and the rib-shaped step portion engaging with a lower part of an engaging portion on the bottom case; The transparent outer cover is removably connected to the light-guiding inner cover by a snap-fit ​​structure, and the waterproof rubber ring is further compressed during the assembly process to form a double-sealed structure by the cooperation of the bottom case, the light-guiding inner cover and the transparent outer cover.

[0007] In this device, the bottom case has an inner engaging portion, and the light-guiding inner cover has a ribbed step portion that engages with the engaging portion to achieve axial positioning and restriction of the waterproof rubber ring, preventing the waterproof rubber ring from shifting or twisting during assembly. The transparent outer cover is connected to the light-guiding inner cover using a snap-fit ​​structure, which gradually compresses the waterproof rubber ring during assembly, forming a double-sealed structure between the bottom case, the light-guiding inner cover, and the transparent outer cover. This significantly improves the reliability and durability of the seal and effectively prevents water vapor from entering the interior of the lamp through the joints. This solves the problems of poor sealing in the prior art, such as damp circuit boards, corrosion of components, reduced insulation performance, and a shortened lamp life. The waterproof structure does not require screw tightening, making it easy to install and remove, and facilitates maintenance. The ribbed step portion on the outer surface of the annular case snaps into the lower part of the engaging portion of the bottom case, achieving accurate axial positioning and restriction of the light-guiding inner cover.

[0008] The bottom case further includes alternating first and second thickened layers on the inside, the first thickened layer being thinner than the second thickened layer, a mating portion formed on the inside of the first thickened layer to support the waterproof rubber ring, and the tops of the first and second thickened layers having a sloped structure to provide a compression deformation space for the waterproof rubber ring. The alternating first and second thickened layers are compatible with the structure of the light-guiding inner cover, and the differential thickness design enhances the local structural strength of the bottom case. The sloped structure at the top also provides sufficient deformation space for the waterproof rubber ring to compress, preventing permanent deformation or damage to the sealing member due to excessive pressure and improving sealing durability and rebound performance.

[0009] Furthermore, the annular boss is provided with a downwardly recessed arc-shaped groove, and the transparent outer cover has a plurality of arc-shaped protrusions arranged at intervals along the circumferential direction on the edge thereof, and a barbed elastic locking tongue extends from the top of each arc-shaped protrusion. The arc-shaped protrusion is inserted into the arc-shaped groove, and the elastic locking tongue slides into the arc-shaped mounting groove communicating with the arc-shaped groove and snaps into the arc-shaped boss provided in the arc-shaped mounting groove, realizing a self-locking connection between the transparent outer cover and the light-guiding inner cover. The guiding fit between the arc-shaped protrusion and the arc-shaped groove ensures accurate alignment between the transparent outer cover and the light-guiding inner cover, and after the elastic locking tongue slides into the arc-shaped mounting groove, it snaps into and locks with the arc-shaped boss, forming a reliable self-locking connection.

[0010] Furthermore, the waterproof rubber ring is an annular silicone rubber sealing ring, which is installed between the bottom case and the light-guiding inner cover and is gradually compressed when assembling the transparent outer cover, generating a dual sealing force in the radial and axial directions. Furthermore, a support member, a mounting groove and a fixing hole are provided inside the bottom case for mounting the light source assembly, a heat sink is attached to the bottom of the light source assembly, a lens is attached to the front of the light source assembly, the light-guiding inner cover is engaged with the bottom case, and the transparent outer cover is engaged with the light-guiding inner cover.

[0011] Furthermore, an aluminum plate is attached to the inside of the bottom case, a terminal block is attached to the aluminum plate, and both the bottom case and the aluminum plate are provided with through-holes, which improve the structural strength and heat conduction performance of the electrical connection part, and the through-holes in the bottom case and the aluminum plate facilitate the routing, positioning, and installation of the power cord.

[0012] Furthermore, a downwardly recessed insertion opening is formed on the upper surface of the second thick layer, and a downwardly recessed pin hole is formed in the annular boss, a horizontal pillar is formed within the pin hole and a pin is provided to be inserted into the pin hole and the insertion opening. When the pin is inserted into the pin hole and the insertion opening, the light-guiding inner cover is tightly locked to the bottom case, and in this state, only the transparent outer cover can be removed, and the light-guiding inner cover cannot be taken out, thereby ensuring the stability and sealing of the internal structure. When the light-guiding inner cover needs to be maintained or replaced, the light-guiding inner cover can be removed by simply pulling out the pin to release the connection between the light-guiding inner cover and the bottom case. [Effects of the Invention]

[0013] The bathroom lamp of the present invention has the following advantages: Compared with the prior art, in this technical solution, an engaging portion is provided on the inside of the bottom case, and a ribbed step portion is provided on the light-guiding inner cover that engages with the engaging portion. Combined with a snap-fit ​​connection structure between the transparent outer cover and the light-guiding inner cover, this realizes accurate positioning of the waterproof rubber ring, and through gradual compression during the assembly process, a double-sealed structure is formed by the cooperation of the bottom case, the light-guiding inner cover and the transparent outer cover, significantly improving the sealing reliability and service life of the lighting fixture in high-humidity environments. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is an overall view of a bathroom lamp according to the present invention; [Figure 2] 1 is an exploded view of a bathroom lamp according to a first embodiment of the present invention; [Figure 3] 2 is an exploded view of a bathroom lamp according to a second embodiment of the present invention; FIG. [Figure 4] 1 is a structural diagram of the bottom case of the present invention; [Figure 5] 1 is a structural diagram of the light-guiding inner cover and the transparent outer cover according to the present invention viewed from a first direction. [Figure 6]1 is a structural diagram of the light-guiding inner cover and the transparent outer cover according to the present invention viewed from a second direction. [Figure 7] 3 is a structural diagram of the light-guiding inner cover according to the present invention; [Figure 8] 1 is a structural diagram of a light-guiding inner cover with pins according to the present invention; [Figure 9] FIG. 2 is a cross-sectional view of the present invention without a transparent outer cover. [Figure 10] FIG. 2 is a cross-sectional view of the present invention with a transparent outer cover. DETAILED DESCRIPTION OF THE INVENTION

[0015] In order to clarify the objectives, technical means and advantages of the present invention, the present invention will be described in more detail below with reference to the drawings and examples. Note that the specific examples described in this specification are only for the purpose of interpreting the present invention and are not intended to limit the present invention. [Example]

[0016] Example 1 As shown in Figures 1 and 2, the bathroom lamp of the present invention is assembled from a bottom case 1, an aluminum plate 2, a terminal block 3, a waterproof rubber ring 4, a heat sink 5, a light source assembly 6, a lens 7, a light-guiding inner cover 8 and a transparent outer cover 9, and has an overall columnar structure that is suitable for lighting needs in humid environments. When the bathroom lamp is placed horizontally on a table, the bottom case 1 is located at the very bottom of the lamp, has a disk-like structure, and is the main structural member of the entire lamp. The inside of the bottom case 1 is provided with support members, mounting grooves, and fixing holes for mounting core components such as the light source assembly, heat sink, and terminal block. The bottom is provided with multiple mounting holes for fixing the lamp to a ceiling or wall with screws.

[0017] As shown in Figure 4, first and second thick layers 10 and 11 are formed alternately inside bottom case 1, with the thickness of first layer 10 being smaller than that of second layer 11 and the first and second thick layers 10 and 11 being hollow, i.e., the first and second thick layers 10 and 11 form the case. An engagement portion 12 for supporting and arranging waterproof rubber ring 4 is formed inside first thick layer 10, and an insertion opening 13 is formed downward at the top of second thick layer 11. The first and second thick layers 10 and 11 have inclined tops, forming a space for arranging waterproof rubber ring 4.

[0018] The aluminum plate 2 is a thin plate attached to the inner bottom surface of the bottom case 1. The aluminum plate may be fixed to the bottom case by welding, screws, or snap fitting. The bottom case 1 and the aluminum plate 2 each have a through hole in the center, through which a wire can be passed. The terminal block 3 is fixedly attached to the aluminum plate 2 and is located inside the bottom case 1. The terminal block is a power input interface. The terminal block includes a connection terminal and an insulating case.

[0019] The waterproof rubber ring 4 is an annular elastic sealing member made of silicone rubber or EPDM, and is resistant to high temperatures, deterioration, highly elastic, and has excellent sealing performance. When the transparent outer cover is tightened or pressed, the waterproof rubber ring is compressed and deformed, forming a secure seal and preventing water vapor from entering the interior. The light source assembly 6 is attached to the support member and includes an annular circuit board, an LED bulb array is provided on the circuit board, a drive circuit mounting area is formed extending inside the circuit board, and the light source assembly is fixed to the support member by engagement and / or screws.

[0020] The heat sink 5 is attached to the back of the circuit board and is attached to the support member together with the circuit board. The heat sink 5 is in direct contact with the light source assembly 6, is made of aluminum alloy, and has a large surface area, which can efficiently absorb and dissipate the heat generated during LED operation, improving the service life and stability of the lamp. The lens 7 is mounted in front of the light source assembly 6 and is a convex lens made of transparent plastic or glass that focuses or diffuses the light. The shape of the lens can be selected from plano-convex, bi-convex, spherical, or other shapes depending on the lighting needs to optimize the beam angle and illuminance distribution.

[0021] The light-guiding inner cover 8 is fitted inside the bottom case 1 and is made of frosted PC or PMMA, with a translucent milky white surface, making it a milky white inner cover. Its function is to soften the light, eliminate glare, and make the lighting more uniform and soft, making it suitable for spaces that require comfortable lighting, such as toilets.

[0022] As shown in FIGS. 5 and 6 , the light-guiding inner cover 8 includes an annular boss 80 located at the middle of its edge. The annular boss 80 has spaced-apart arc-shaped mounting grooves 81 recessed from bottom to top. An annular case 85 extends downward from the annular boss 80, and an arc-shaped surface 86 extends upward. A groove 87 is formed between the annular boss 80 and the arc-shaped surface 86. A stepped rib-like step portion 82 is formed on the outside of the annular case 85, and the rib-like step portion 82 engages with the lower part of the engaging portion 12. The top of the annular boss 80 has a downwardly recessed arc-shaped groove 83 and at least one pin hole 84, with a horizontal post extending through the pin hole 84. The arc-shaped groove 83 and the arc-shaped mounting groove 81 are connected end-to-end, forming a cavity that communicates with each other. An arc-shaped boss 811 is provided in the arc-shaped mounting groove 81.

[0023] To ensure a secure connection between the light-guiding inner cover 8 and the bottom case 1, the present invention provides a pin hole 84 on the light-guiding inner cover 8, a corresponding insertion hole 13 on the bottom case 1, and a pin 88 to lock the light-guiding inner cover 8 to the bottom case 1. When the pin 88 is inserted into the pin hole 84 and the insertion hole 13, the light-guiding inner cover 8 is securely locked to the bottom case 1. In this case, only the transparent outer cover 9 can be removed, and the light-guiding inner cover 8 cannot be taken out, thereby ensuring the stability and sealing of the internal structure. When the light-guiding inner cover 8 needs to be maintained or replaced, the light-guiding inner cover 8 can be released from the connection with the bottom case 1 by simply pulling out the pin 88. This structural design realizes the function of "layered detachment", that is, for daily cleaning, only the transparent outer cover 9 needs to be removed, and there is no need to disassemble the internal assembly; for thorough maintenance, the pin 88 can be used to control whether the light-guiding inner cover 8 is unlocked, ensuring convenience of use while improving the safety and maintainability of the structure.

[0024] The transparent outer cover 9 is the outermost protective cover for the lamp fixture. It has a circular convex structure and is made of high-strength, impact-resistant PC material, which is corrosion-resistant, UV-resistant, and anti-fogging. The edge of the outer cover is provided with an inner groove that engages with the thick inner layer of the bottom case 1 and is secured using a snap-fit ​​connection. When installed, a waterproof rubber ring 4 is crimped onto the outer cover to form a double-sealed structure.

[0025] The edge of the transparent outer cover 9 is provided with multiple arc-shaped protrusions 91 spaced apart along the circumferential direction, and an elastic locking tongue 92 with a return structure extends from the top of each arc-shaped protrusion 91. When the transparent outer cover 9 is assembled, the arc-shaped protrusions 91 are inserted into the arc-shaped grooves 83 of the bathroom light body, and the elastic locking tongues 92 slide into the corresponding arc-shaped mounting grooves 81, and finally the return portions overcome the arc-shaped bosses 811 and snap-fit ​​with the arc-shaped bosses 811, forming a secure self-locking connection, thereby enabling quick installation and firm fixation of the transparent outer cover 9 and the light-guiding inner cover 8.

[0026] As described above, a detachable movable connection structure is used between the transparent outer cover 9 and the light-guiding inner cover 8, which design not only facilitates the installation and maintenance of the lamp fixture, but also enables the interior of the lamp cover to be cleaned during use. If water vapor condenses or mist accumulates at the interface between the light-guiding inner cover 8 and the transparent outer cover 9, the user can easily remove the transparent outer cover 9 and wipe and clean the surface and joint area of ​​the light-guiding inner cover, thereby effectively removing the mist, dirt or dust and maintaining the high light transmission performance and lighting effect of the lamp fixture. [Example]

[0027] Example 2 As shown in FIG. 3, the structure of the transparent outer cover 9 is different from that of the first embodiment, and the transparent outer cover 9 has a circular convex lens structure.

[0028] The bathroom lamp of the present invention has the following advantages: In this device, a mating portion is provided on the inside of the bottom case, and a ribbed step portion is provided on the light-guiding inner cover that mating with the mating portion realizes axial positioning and restriction for the waterproof rubber ring, preventing the waterproof rubber ring from shifting or twisting during assembly. Furthermore, the transparent outer cover is connected to the light-guiding inner cover using a snap-fit ​​structure, and the waterproof rubber ring is compressed in stages during assembly to form a double-sealed structure by the cooperation of the bottom case, the light-guiding inner cover, and the transparent outer cover. This significantly improves the reliability and durability of the seal and effectively prevents water vapor from entering the interior of the lamp through the joints. This solves the problems of poor sealing in the prior art, such as damp circuit boards, corrosion of components, reduced insulation performance, and a shortened service life of the lamp. The waterproof structure does not require screw tightening, making it easy to install and remove, and easy to maintain.

[0029] The above is merely a preferred embodiment of the present invention, and does not limit the present invention. All modifications, equivalent replacements, improvements, etc. made within the concept and principle of the present invention shall be included within the protection scope of the present invention. [Explanation of symbols]

[0030] 1: Bottom case; 2: Aluminum plate; 3: Terminal block; 4: Waterproof rubber ring; 5: Heat sink; 6: Light source assembly; 7: Lens; 8: Light guide inner cover; 80: Annular boss; 81: Arc-shaped mounting groove; 82: Rib-shaped step portion; 83: Arc-shaped groove; 84: Pin hole; 85: Annular case; 86: Arc-shaped surface; 87: Groove; 88: Pin; 9: Transparent outer cover; 91: Projection piece; 92: Elastic locking tongue; 10: First thick layer; 11: Second thick layer; 12: Engagement portion; 13: Insertion port

Claims

1. A bathroom lamp including a bottom case (1), a light source assembly (6), a light-guiding inner cover (8) and a transparent outer cover (9), An engagement portion (12) is provided inside the bottom case (1), the light-guiding inner cover (8) is fitted into the inside of the bottom case (1), and the light-guiding inner cover (8) is provided with a rib-shaped step portion (82) that engages with the engagement portion (12), The light-guiding inner cover (8) includes an annular boss (80) located in the middle, the bottom of the annular boss (80) extending downward to form an annular case (85), the rib-shaped step portion (82) located on the outer surface of the annular case (85) and having a stepped shape, a waterproof rubber ring (4) attached between the annular boss (80) and the lower surface of the rib-shaped step portion (82), and the rib-shaped step portion (82) engages with the lower part of the engagement portion (12) on the bottom case (1), The transparent outer cover (9) is removably connected to the light-guiding inner cover (8) by a snap-fit ​​structure, and the waterproof rubber ring (4) is further compressed during the assembly process to form a double-sealed structure by the cooperation of the bottom case (1), the light-guiding inner cover (8) and the transparent outer cover (9).

2. The bottom case (1) has first thick layers (10) and second thick layers (11) alternately provided inside, the thickness of the first thick layers (10) being smaller than the thickness of the second thick layers (11), and the engaging portion (12) is formed inside the first thick layers (10) and is used to support a waterproof rubber ring (4); The bathroom lamp according to claim 1, characterized in that the tops of the first thick layer (10) and the second thick layer (11) have an inclined structure to provide a compression deformation space for the waterproof rubber ring (4).

3. The annular boss (80) is provided with a downwardly recessed arc-shaped groove (83), and the transparent outer cover (9) has a plurality of arc-shaped protrusions (91) arranged at intervals along the circumferential direction on the edge thereof, and a barbed elastic locking tongue (92) extends from the top of each arc-shaped protrusion (91). The bathroom lamp of claim 2, wherein the arc-shaped protrusion (91) is inserted into the arc-shaped groove (83), and the elastic locking tongue (92) slides into the arc-shaped mounting groove (81) communicating with the arc-shaped groove (83) and snaps into the arc-shaped boss (811) provided in the arc-shaped mounting groove (81), thereby realizing a self-locking connection between the transparent outer cover (9) and the light-guiding inner cover (8).

4. The bathroom lamp of claim 3, characterized in that the waterproof rubber ring (4) is an annular silicone rubber sealing ring, which is installed between the bottom case (1) and the light-guiding inner cover (8), and is gradually compressed when assembling the transparent outer cover (9), thereby generating a dual sealing force in the radial and axial directions.

5. The bathroom lamp of claim 1, characterized in that the inside of the bottom case (1) is provided with a support member, mounting grooves and fixing holes for mounting the light source assembly (6), a heat sink (5) is mounted on the bottom of the light source assembly (6), a lens (7) is mounted in front of the light source assembly (6), the light-guiding inner cover is engaged with the bottom case (1), and the transparent outer cover (9) is engaged with the light-guiding inner cover.

6. The bathroom lamp according to claim 5, characterized in that an aluminum plate (2) is attached inside the bottom case (1), a terminal block (3) is attached to the aluminum plate (2), and through holes are provided in both the bottom case (1) and the aluminum plate (2).

7. The bathroom light of claim 3, characterized in that a downwardly recessed insertion hole (13) is formed on the upper surface of the second thick layer (11), a downwardly recessed pin hole (84) is provided in the annular boss (80), a horizontal pillar is provided within the pin hole (84) and extends across the interior thereof, and a pin (88) is provided to be inserted into the pin hole (84) and the insertion hole (13).

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