Ultra-thin downlight

Abstract

The application provides an ultrathin tube lamp, which comprises a heat sink, a light source module, a protective cover and a lampshade. The heat sink has a concave hole on the inner side. The light source module comprises a circuit board, a plurality of light emitting elements and a driving element. The circuit board is fixed to the assembly part of the heat sink. Each light emitting element and the driving element are located on the circuit board. Each light emitting element is exposed to the concave hole of the heat sink. The protective cover is arranged on the circuit board and covers each light emitting element and the driving element. The protective cover is located in the concave hole. The lampshade is combined with the mounting part of the heat sink and covers the protective cover. The flat circular structure of the heat sink is used to reduce the setting of the reflecting cup, and the structure of the light emitting cover and the safety protective cover is integrated to reduce the material quantity and the processing cost.

Description

Technical Field

[0001] This invention relates to downlights, and more particularly to an ultra-thin downlight. Background Technology

[0002] Downlights are frequently installed in homes, commercial spaces, and other locations. Most existing downlights are quite thick, making installation complex. They also require wiring work such as driver boxes, or components like reflectors, light emitters, and safety guards, resulting in a relatively complex structure. Summary of the Invention

[0003] In view of the above problems, an ultra-thin downlight is proposed that reduces the amount of materials and processing costs, has a simple structure, and saves costs.

[0004] One embodiment of the present invention provides an ultra-thin downlight, comprising a heat sink, a light source module, a protective cover, and a lampshade. The heat sink has a flat, circular structure, with an assembly portion on its back side and a mounting portion and a recessed hole located inside the mounting portion on its front side. The light source module includes a circuit board, multiple light-emitting elements, and a driver. The circuit board is fixed to the assembly portion, and each light-emitting element and driver is located on the circuit board, with each light-emitting element correspondingly exposed in the recessed hole. The protective cover is disposed on the circuit board and covers each light-emitting element and driver, with the protective cover correspondingly located in the recessed hole. The lampshade is attached to the mounting portion and covers the protective cover.

[0005] According to a preferred embodiment of the ultra-thin downlight described above, the heat sink is made of metal.

[0006] According to a preferred embodiment of the ultra-thin downlight described above, the heat sink has an inner reflective slope located in the mounting portion and an outer slope located outside the inner reflective slope, and the heat sink is generally dish-shaped.

[0007] According to a preferred embodiment of the ultra-thin downlight described above, a light-emitting cover is provided on the outside of the protective cover. The light-emitting cover and the protective cover are an integral structure, and the light-emitting cover has movable recesses.

[0008] According to a preferred embodiment of the ultra-thin downlight described above, the protective cover is made of transparent plastic.

[0009] According to a preferred embodiment of the above-mentioned ultra-thin downlight, the mounting part is a circular groove, the inner wall of the circular groove has multiple through holes, and the periphery of the lampshade has multiple hooks, each hook being engaged with each through hole.

[0010] According to a preferred embodiment of the ultra-thin downlight described above, the protective cover has multiple slots, and the end edges of the recessed holes of the heat sink pass through each slot and contact the circuit board.

[0011] According to a preferred embodiment of the ultra-thin downlight described above, the circuit board has multiple mating holes suitable for fitting with studs that secure the junction box.

[0012] According to a preferred embodiment of the ultra-thin downlight described above, the heat sink has multiple observation holes located in the mounting portion, corresponding to the observation of the studs.

[0013] According to a preferred embodiment of the ultra-thin downlight described above, the circuit board has a switching module for adjusting the color temperature or power of the light-emitting element.

[0014] In summary, the ultra-thin downlight according to an embodiment of the present invention utilizes the flat circular structure of the heat sink to cleverly reduce the design of the reflector cup, and designs an integrated structure of the light emitter cover and the safety cover, which greatly reduces the amount of materials and processing costs, thus saving costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of an embodiment of the ultra-thin downlight of the present invention; Figure 2 This is an exploded view of an embodiment of the ultra-thin downlight of the present invention; Figure 3 This is a schematic diagram of the appearance of an embodiment of the light source module and protective cover of the present invention, with the state of multiple light-emitting elements and driving components of the light source module shown in dashed lines. Figure 4 This is a side cross-sectional view of an embodiment of the light source module and protective cover of the present invention, showing the state of the junction box being installed on the circuit board; Figure 5 This is a top view of an embodiment of the ultra-thin downlight of the present invention, with the light source module and protective cover shown through dashed lines. Figure 6 yes Figure 5 A cross-sectional view of the AA lead wire.

[0016] Explanation of reference numerals in the attached figures: Ultra-thin downlight 100, heat sink 1, end edge 1a, assembly part 10, mounting part 11, through hole 111, observation hole 112, concave hole 12, inner reflective bevel 14, outer bevel 15, light source module 2, circuit board 21, connecting hole 211, light-emitting element 22, driving component 23, switch module 25, protective cover 31, slot 311, light-emitting cover 32, lamp cover 4, hook 41, junction box 9, stud 91.

[0017] The following detailed description of the features and advantages of the present invention is sufficient to enable anyone skilled in the art to understand the technical content of the present invention and implement it accordingly. Based on the content disclosed in this specification, the claims and drawings, anyone skilled in the art can easily understand the purpose and advantages of this creation. Detailed Implementation

[0018] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0019] Please refer to Figures 1 to 2 , Figure 1 This is a schematic diagram of the appearance of an embodiment of the ultra-thin downlight 100. Figure 2 This is an exploded view of an embodiment of the ultra-thin downlight 100.

[0020] In some embodiments, the ultra-thin downlight 100 includes a heat sink 1, a light source module 2, a protective cover 31, and a lampshade 4.

[0021] In some embodiments, the heat sink 1 has a flat, circular structure, and the back of the heat sink 1 has an assembly portion 10 (such as...). Figure 6 As shown, the front of the heat sink 1 has a mounting portion 11 and a recess 12 located inside the mounting portion 11.

[0022] In some embodiments, the light source module 2 includes a circuit board 21, a plurality of light-emitting elements 22 and a driving element 23. The circuit board 21 is fixed to the assembly part 10, and each light-emitting element 22 and the driving element 23 are located on the circuit board 21. Each light-emitting element 22 is exposed in the recess 12.

[0023] In some embodiments, a protective cover 31 is disposed on the circuit board 21 and covers each light-emitting element 22 and the driving element 23, with the protective cover 31 corresponding to the recess 12.

[0024] In some embodiments, the lampshade 4 is attached to the mounting portion 11 and covers the protective cover 31.

[0025] In some embodiments, the lampshade 4 is screwed into the four through holes 111 of the heat sink 1. A plurality of light-emitting elements 22 and driving components 23 are mounted on the middle of the elongated circuit board 21 and fixed to the heat sink 1 by screws. A protective cover 31 is placed on the circuit board 21 to cover the light-emitting elements 22 and driving components 23. Since the multiple light-emitting elements 22 and driving components 23 are housed in different cavities, the light-emitting elements 22 are not obstructed by the driving components 23, resulting in higher luminous efficiency.

[0026] In some embodiments, the light source module 2 is equipped with a power drive circuit DOB (Driver on Board), which is a downlight for ultra-thin DOB card mounting.

[0027] Please refer to Figures 3 to 4 , Figure 3 This is a schematic diagram showing the appearance of one embodiment of the light source module 2 and the protective cover 31, with the states of the multiple light-emitting elements 22 and the driving components 23 of the light source module 2 shown in dashed lines. Figure 4This is a side cross-sectional view of one embodiment of the light source module 2 and the protective cover 31, showing the junction box 9 mounted on the circuit board 21. In some embodiments, the protective cover 31 is made of transparent plastic and has an irregular shape. The protective cover 31 is mounted to the circuit board 21 with screws, and the light source of the light-emitting element 22 passes through the protective cover 31 and emits light directly.

[0028] Please refer to Figures 3 to 4 In some embodiments, a light-emitting cover 32 covers the outside of the protective cover 31. The light-emitting cover 32 and the protective cover 31 are an integral structure, and the light-emitting cover 32 is movably separated from the recess 12. When the user rotates the light-emitting cover 32 to separate the recess 12, the protective cover 31 protects the circuit board 21, avoiding the risk of electric shock to the light source surface and the power supply device, thus ensuring safety during use.

[0029] Please refer to Figures 2 to 6 , Figure 5 This is a top view schematic diagram of an embodiment of the ultra-thin downlight 100, with the light source module 2 and the protective cover 31 shown in dashed lines. Figure 6 yes Figure 5 A cross-sectional view of the AA lead wire. In some embodiments, the heat sink 1 is made of metal. The heat sink 1 has an inner reflective slope 14 located on the mounting portion 11 and an outer slope 15 located outside the inner reflective slope 14. The heat sink 1 is generally dish-shaped, with a thin and simple downlight design. The arc shape of the inner reflective slope 14 replaces the reflector cup, further improving the light efficiency.

[0030] Please refer to Figures 2 to 6 In some embodiments, the mounting part 11 is a circular groove with multiple through holes 111 on the inner wall of the circular groove, and multiple hooks 41 are provided around the lampshade 4, with each hook 41 being engaged with each through hole 111.

[0031] Please refer to Figures 2 to 6 In some embodiments, the protective cover 31 has a plurality of slots 311, and one end edge 1a of the recess 12 of the heat sink 1 passes through each slot 311 and contacts the circuit board 21. The gaps on the protective cover 31 can ensure thermal contact between the circuit board 21 and the heat sink 1.

[0032] Please refer to Figures 2 to 6In some embodiments, the circuit board 21 has multiple mating holes 211 (such as two pairs of keyholes) adapted to mate with the studs 91 of the junction box 9. The heat sink 1 has multiple viewing holes 112 located in the mounting portion 11, corresponding to the viewing holes for the studs 91. The viewing holes 112 allow the user to see the mounting studs 91 of the junction box 9 during installation through the viewing holes 112 and the transparent safety cover 31. In some embodiments, the ultra-thin downlight 100 can be adapted to a 5-inch or 6-inch junction box 9.

[0033] Please refer to Figures 2 to 6 In some embodiments, the power supply component and the light-emitting element 22 are both mounted on the same circuit board 21. The circuit board 21 has a switch module 25 for adjusting the color temperature or power of the light-emitting element 22. The user can switch the color temperature or power by toggling the switch button on the side of the switch module 25.

[0034] In summary, the ultra-thin downlight according to an embodiment of the present invention utilizes the flat circular structure of the heat sink to cleverly reduce the design of the reflector cup, and designs an integrated structure of the light emitter cover and the safety cover, which greatly reduces the amount of materials and processing costs, thus saving costs.

[0035] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this invention, or equivalent structural or procedural transformations made using the description and drawings of this invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this invention.

Claims

1. An ultra-thin downlight, characterized in that, include: A heat sink has a flat, round structure and is made of metal. The back of the heat sink has an assembly part, the front of the heat sink has a mounting part and a recessed hole located inside the mounting part, the heat sink also has an inner reflective slope located in the mounting part, an outer slope located outside the inner reflective slope, and a plurality of observation holes located in the mounting part. The outer slope surrounds the inner reflective slope, making the heat sink overall dish-shaped. A light source module includes a circuit board, multiple light-emitting elements and a driving component. The circuit board is fixed to the assembly part. Each light-emitting element and the driving component are located on the circuit board. Each light-emitting element is exposed in the recessed hole, so that the inner reflective slope surrounds the multiple light-emitting elements. The circuit board has multiple connecting holes, which are suitable for fixing a stud of a junction box. A protective cover is disposed on the circuit board and covers each of the light-emitting elements and the driving component, the protective cover being located corresponding to the recessed hole; and A lampshade, which is attached to the mounting part and covers the protective cover; The inner reflective bevel is arc-shaped to provide the function of a reflector cup, and the plurality of viewing holes correspond to the viewing of the stud.

2. The ultra-thin downlight according to claim 1, characterized in that: The protective cover is covered by a light-emitting cover, which is an integral structure with the protective cover. The light-emitting cover is movably separated from the concave hole.

3. The ultra-thin downlight according to claim 1, characterized in that: The protective cover is made of transparent plastic.

4. The ultra-thin downlight according to claim 1, characterized in that: The mounting part is a circular groove with multiple through holes on the inner wall of the circular groove, and multiple hooks on the periphery of the lampshade, each hook being engaged with each of the through holes.

5. The ultra-thin downlight according to claim 1, characterized in that: The protective cover has multiple slots, and one end edge of the recess of the heat sink passes through each slot and contacts the circuit board.

6. The ultra-thin downlight according to claim 1, characterized in that: The circuit board has a switching module for adjusting the color temperature or power of the light-emitting element.

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