Installation structure of reflection cup and face ring in down lamp

Abstract

The utility model relates to an installation structure of a reflection cup and a face ring in a down lamp. The installation structure comprises a down lamp shell, the face ring, the reflection cup, a rotary buckle structure and the like. A convex ring is arranged on the outer side of the lower end of the reflection cup and is matched with a limiting elastic sheet on the baffle ring to realize preassembling of the baffle ring and the limiting ring; the reflection cup is placed into the baffle ring from top to bottom, the convex ring abuts against the limiting ring and then is limited and fixed through the limiting elastic piece, and preassembling integration is completed; the structure does not need to manually maintain the posture of the reflection cup, avoids the falling risk, and reduces the labor intensity; no special tool is needed for preassembling, clamping or unlocking of the assembly and the down lamp shell can be achieved by rotating the face ring subsequently, fastening is more convenient and faster compared with traditional bolt fastening, and the assembling efficiency is improved. During disassembly, the parts can be separated by reversely rotating for unlocking and pressing the elastic sheet, the operation is simple, the parts are not damaged, and the maintenance cost and difficulty are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of downlight technology, and in particular to an installation structure for a reflector cup and face ring in a downlight. Background Technology

[0002] Downlights, as recessed lighting fixtures, are widely used in various scenarios such as home decoration, commercial venues, and office spaces due to their flush installation with the ceiling, high aesthetic appeal, and soft light. The reflector and face ring are the core components of a downlight. The reflector is mainly used to focus light and improve lighting efficiency, while the face ring is used to achieve a tight seal between the downlight and the mounting surface and to enhance the overall decorative effect. The installation stability, ease of assembly, and positioning accuracy of both directly affect the lighting performance, lifespan, and production assembly efficiency of the downlight.

[0003] In existing technologies, the reflectors of some traditional downlights are not pre-installed and integrated into the downlight housing. During assembly, after the reflector is installed into the downlight housing and before the face ring is fixed, the operator must maintain a specific posture of the reflector to prevent it from falling out of the reflector. This undoubtedly increases the labor intensity of the operator and also reduces assembly efficiency. Secondly, the reflector lacks an effective pre-positioning structure before it is fixed, which makes it difficult to guarantee its positioning accuracy and makes it prone to problems such as displacement and tilting. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes an installation structure that can achieve pre-positioning of the reflector cup, reduce assembly intensity, facilitate assembly, and ensure reliable connection.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mounting structure for a reflector cup and face ring in a downlight includes a downlight housing and a face ring located at the lower end of the downlight housing. The lower end of the downlight housing has a mounting slot, in which a reflector cup connected to the face ring is placed. A retaining ring is coaxially mounted on the upper end of the face ring. A limiting ring is located on the inner side of the lower end of the retaining ring. A protruding ring that cooperates with the limiting ring is located on the outer side of the lower end of the reflector cup. A limiting elastic piece is also provided on the retaining ring. When the protruding ring abuts against the limiting ring from top to bottom, the limiting elastic piece can limit and fix the protruding ring. A rotary snap-fit ​​structure for fixing the retaining ring and the mounting slot is also provided between them.

[0007] In some embodiments, the rotary snap-fit ​​structure includes a protruding post on the inner sidewall of the mounting slot, and an L-shaped slot that mates with the protruding post is provided on the retaining ring. The L-shaped slot includes a vertical groove and a horizontal groove at the lower end of the vertical groove.

[0008] In some embodiments, a limiting protrusion is provided on the upper sidewall of the transverse groove.

[0009] In some embodiments, the upper corner of the vertical groove is provided with a guide bevel.

[0010] In some embodiments, a mark is provided on the outer wall of the downlight housing at a position corresponding to the protrusion.

[0011] In some embodiments, a light-blocking ring is provided on the inner bottom wall of the mounting slot, a lamp plate is installed inside the light-blocking ring by a first screw, and a lens is installed at the lower opening of the light-blocking ring by a second screw.

[0012] In some embodiments, a concave annular groove is provided at the lower end of the lens, and the upper end of the reflector is disposed within the concave annular groove.

[0013] In some embodiments, spring clips are symmetrically arranged on the outer side wall of the downlight housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting a retaining ring and a limiting ring at the upper end of the face ring, and cooperating with the convex ring at the lower end of the reflector, the reflector and face ring can be pre-assembled. The reflector is placed into the retaining ring from top to bottom, so that the convex ring abuts against the limiting ring. Then, the convex ring is limited and fixed by the limiting elastic piece, thus completing the pre-assembly integration of the reflector and face ring. This pre-assembly structure eliminates the need for the reflector to be separately inserted into the mounting slot of the downlight housing and manually maintained during assembly, effectively avoiding the risk of the reflector falling off, greatly reducing the labor intensity of the operators, and also laying the foundation for subsequent overall assembly, improving the overall assembly efficiency.

[0016] 2. On the one hand, the pre-assembly process of the reflector cup and face ring does not require special tools; it can be completed simply by the abutment of the convex ring and the limiting ring, and the elastic limiting of the limiting elastic piece. On the other hand, the pre-assembled components are fixed to the downlight housing by a rotating snap-fit ​​structure. Simply rotating the face ring is enough to engage or disengage them. Compared with traditional bolt fastening methods, this is more convenient and significantly improves assembly efficiency. At the same time, disassembly is simple: just rotate the face ring in the opposite direction to unlock the snap-fit, and then press the limiting elastic piece to separate the reflector cup and face ring. The disassembly process is simple and quick, and will not damage the components, greatly reducing the maintenance cost and difficulty of subsequent repairs and component replacements. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the downlight of this utility model.

[0018] Figure 2 This is a cross-sectional view of the downlight of this utility model.

[0019] Figure 3 This utility model Figure 2 Enlarged diagram of point A.

[0020] Figure 4 This is a schematic diagram of the reflector cup and face ring of this utility model.

[0021] Figure 5 This is a schematic diagram of the lamp panel and lens installed on the downlight housing according to this utility model. Detailed Implementation

[0022] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0023] like Figures 1-5 The diagram illustrates an installation structure for a reflector cup and face ring in a downlight. It includes a downlight housing 1 and a face ring 2 located at the lower end of the housing 1. The lower end of the housing 1 has an installation slot 3. A reflector cup 4 connected to the face ring 2 is disposed within the installation slot 3. A retaining ring 5 is coaxially disposed at the upper end of the face ring 2. A limiting ring 6 is disposed on the inner side of the lower end of the retaining ring 5. A protruding ring 7, which cooperates with the limiting ring 6, is disposed on the outer side of the lower end of the reflector cup 4. A limiting elastic piece 8 is also disposed on the retaining ring 5. When the protruding ring 7 abuts against the limiting ring 6 from top to bottom, the limiting elastic piece 8 can limit and fix the protruding ring 7. A rotary snap-fit ​​structure for fixing the retaining ring 5 and the installation slot 3 is also provided between them.

[0024] During assembly, the reflector cup 4 and the face ring 2 are pre-assembled. The retaining ring 5 and the limiting ring 6 on the inner side of the lower end of the retaining ring 5, which are coaxially set at the upper end of the face ring 2, are matched and positioned with the convex ring 7 on the outer side of the lower end of the reflector cup 4. The reflector cup 4 is inserted into the face ring 2 from top to bottom, aligning with the inside of the retaining ring 5, so that the convex ring 7 at the lower end of the reflector cup 4 gradually approaches and finally abuts against the limiting ring 6 on the inner side of the retaining ring 5. At this time, the limiting ring 6 provides axial support for the convex ring 7, restricting the reflector cup 4 from moving further downward. At the same time, since the retaining ring 5 and the face ring 2 are coaxially set, it can be ensured that the reflector cup 4 and the face ring 2 initially maintain a coaxial state, completing the pre-positioning.

[0025] When the convex ring 7 of the reflector cup 4 abuts against the limiting ring 6, the limiting elastic piece 8 provided on the retaining ring 5 plays a limiting and fixing role. As the convex ring 7 abuts against the limiting elastic piece 8 from top to bottom, the elastic piece undergoes elastic deformation. When the convex ring 7 is fully in contact with the limiting ring 6, the limiting elastic piece 8 rebounds under its own elastic restoring force, forming a pressing or clamping limit on the upper end face of the convex ring 7, thereby stably fixing the reflector cup 4 in the retaining ring 5 of the face ring 2, preventing the reflector cup 4 from axially moving or falling off relative to the face ring 2, and completing the pre-assembly integration of the reflector cup 4 and the face ring 2.

[0026] Finally, the pre-assembled "face ring 2 and reflector cup 4" assembly is aligned with the mounting slot 3 at the lower end of the downlight housing 1 and inserted, so that the retaining ring 5 of the face ring 2 and the mounting slot 3 form a preliminary fit. Then, by rotating the face ring 2, the retaining ring 5 is rotated synchronously, so that the rotary snap-fit ​​structure between the retaining ring 5 and the mounting slot 3 moves relative to each other, and finally the snap-fit ​​is achieved, firmly fixing the retaining ring 5 and the mounting slot 3 of the downlight housing 1. At this time, the entire installation structure is fully assembled, and the reflector cup 4 is stably assembled in the downlight housing 1 through the face ring 2, and always maintains the coaxiality with the face ring 2 and the downlight housing 1.

[0027] See Figure 4 , Figure 5 As shown, the rotary buckle structure includes a protruding post 21 on the inner side wall of the mounting slot 3, and an L-shaped slot 22 that cooperates with the protruding post 21 on the retaining ring 5. The L-shaped slot 22 includes a vertical slot 23 and a horizontal slot 24 at the lower end of the vertical slot 23.

[0028] When placing the pre-assembled components, including the reflector cup 4 and face ring 2, into the mounting slot 3 of the downlight housing 1, align the protrusion 21 on the inner wall of the mounting slot 3 with the upper entrance of the vertical groove 23 of the L-shaped slot 22 on the retaining ring 5. At this time, the extension direction of the vertical groove 23 is consistent with the axial direction of the component placement, providing an axial guide channel for the protrusion 21. Continue to place the pre-assembled components downwards along the guide direction of the vertical groove 23 until the protrusion 21 slides along the vertical groove 23 to the connection point between the lower end of the vertical groove 23 and the horizontal groove 24. At this time, the end face of the protrusion 21 contacts the lower end of the vertical groove 23, realizing the assembly... Axial limiting prevents the component from moving further downward and completes the positioning preparation before rotation and engagement; keeping the axial position of the component unchanged, the rotating face ring 2 (rotation direction is consistent with the extension direction of the transverse groove 24) drives the retaining ring 5 to rotate synchronously; at this time, the protruding post 21 enters the transverse groove 24 from the lower end of the vertical groove 23 and slides along the extension direction of the transverse groove 24 until the protruding post 21 contacts the end face of the transverse groove 24; through the circumferential limiting and axial blocking of the protruding post 21 by the transverse groove 24, the retaining ring 5 is engaged with the mounting slot 3, thereby stably fixing the pre-installed component on the downlight housing 1.

[0029] Furthermore, a limiting protrusion is provided on the upper side wall of the transverse groove 24. When the protrusion 21 enters the transverse groove 24 from the vertical groove 23 and slides along the transverse groove 24, it will contact the limiting protrusion on the upper side wall of the transverse groove 24. Since the limiting protrusion and the retaining ring 5 are integrally formed and made of plastic, it has a certain elastic deformation capability. The protrusion 21 exerts a squeezing force on the limiting protrusion, causing the limiting protrusion to undergo slight elastic deformation, providing a sliding channel for the protrusion 21, ensuring that the protrusion 21 can slide smoothly to the end of the transverse groove 24. When the protrusion 21 slides to the end of the transverse groove 24 and contacts the end face of the transverse groove 24, the squeezing force of the protrusion 21 on the limiting protrusion disappears, and the limiting protrusion returns to its original shape under the action of its own elastic restoring force. Thus, through the blocking effect of the limiting protrusion, the protrusion 21 can be effectively restricted from sliding back from the end of the transverse groove 24 to the vertical groove 23.

[0030] The upper corner of the vertical groove 23 is provided with a guide bevel 41. The inclined structure of the guide bevel 41 will generate a radial guiding force on the protrusion 21. Under the action of this force, the pre-assembled component will undergo slight radial micro-adjustment, so that the protrusion 21 will automatically align with the entrance of the vertical groove 23 without the need for precise manual alignment, thus reducing the difficulty of assembly operation.

[0031] See Figure 1 As shown, a mark 51 is provided on the outer wall of the downlight housing 1 at the position corresponding to the protrusion 21.

[0032] When assembling the pre-assembled components of "reflector cup 4 and face ring 2" with the downlight housing 1, the operator can quickly identify the specific circumferential position of the protrusion 21 on the inner wall of the mounting slot 3 by using the mark 51 on the outer wall of the downlight housing 1. The mark 51 is equivalent to the "external visual reference" of the protrusion 21, which avoids the positioning ambiguity problem caused by the operator's inability to directly observe the protrusion 21 because it is located inside the mounting slot 3.

[0033] See Figure 2 , Figure 5 As shown, a light-blocking ring 61 is provided on the inner bottom wall of the mounting slot 3. A lamp plate 63 is installed inside the light-blocking ring 61 by a first screw. A lens 65 is installed at the lower opening of the light-blocking ring 61 by a second screw.

[0034] Thus, the light-blocking ring 61 is set on the inner bottom wall of the mounting slot 3, forming an independent cavity with an opening at the bottom. This cavity provides dedicated installation space for the lamp panel 63 and the lens 65, while blocking stray light emitted by the lamp panel 63 from scattering into the downlight housing 1, thereby improving light utilization.

[0035] A concave annular groove 71 is provided at the lower end of the lens 65, and the upper end of the reflector cup 4 is located in the concave annular groove 71.

[0036] The upper end of the reflector cup 4 is embedded in the concave annular groove 71 at the lower end of the lens 65. The inner sidewall of the concave annular groove 71 forms a circumferential wrapping and limiting of the upper outer sidewall of the reflector cup 4, which can effectively limit the radial displacement of the reflector cup 4 relative to the lens 65, and ensure that the center of the reflector cup 4 is coaxial with the center of the lens 65 and the lamp plate 63, avoiding light scattering and light spot distortion caused by eccentricity.

[0037] In addition, the bottom of the concave annular groove 71 provides axial support to the upper end face of the reflector cup 4, forming a bidirectional axial limit with the "abutment and cooperation between the lower end convex ring 7 of the reflector cup 4 and the limiting ring 6 of the face ring 2" mentioned above. This can effectively prevent the reflector cup 4 from moving axially during use and further improve the stability of the overall installation structure.

[0038] In this utility model, there are symmetrical spring clips 81 on the outer side wall of the downlight housing 1. The spring clips 81 are used to install the downlight in the mounting holes such as the ceiling. This is a conventional design and will not be described in detail here.

[0039] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mounting structure for a reflector cup and a face ring in a downlight, comprising a downlight housing (1) and a face ring (2) disposed at the lower end of the downlight housing (1), wherein the lower end of the downlight housing (1) is further provided with a mounting slot (3), and a reflector cup (4) connected to the face ring (2) is disposed in the mounting slot (3), characterized in that: A retaining ring (5) is coaxially arranged at the upper end of the face ring (2). A limiting ring (6) is arranged on the inner side of the lower end of the retaining ring (5). A convex ring (7) that cooperates with the limiting ring (6) is arranged on the outer side of the lower end of the reflector (4). A limiting elastic piece (8) is also arranged on the retaining ring (5). When the convex ring (7) abuts against the limiting ring (6) from top to bottom, the limiting elastic piece (8) can limit and fix the convex ring (7). A rotary buckle structure for fixing the two is also provided between the retaining ring (5) and the mounting groove (3).

2. The mounting structure of the reflector cup and face ring in a downlight according to claim 1, characterized in that: The rotating buckle structure includes a protruding post (21) on the inner side wall of the mounting slot (3), and an L-shaped slot (22) that cooperates with the protruding post (21) is provided on the retaining ring (5). The L-shaped slot (22) includes a vertical slot (23) and a horizontal slot (24) at the lower end of the vertical slot (23).

3. The mounting structure of the reflector cup and face ring in a downlight according to claim 2, characterized in that: A limiting protrusion is provided on the upper side wall of the transverse groove (24).

4. The mounting structure of the reflector cup and face ring in a downlight according to claim 2, characterized in that: The upper corner of the vertical groove (23) is provided with a guide bevel (41).

5. The mounting structure of the reflector cup and face ring in a downlight according to claim 2, characterized in that: A mark (51) is provided on the outer wall of the downlight housing (1) at a position corresponding to the protrusion (21).

6. The mounting structure of the reflector cup and face ring in a downlight according to any one of claims 1-5, characterized in that: A light-blocking ring (61) is provided on the inner bottom wall of the mounting slot (3). A lamp plate (63) is installed inside the light-blocking ring (61) by a first screw. A lens (65) is installed at the lower opening of the light-blocking ring (61) by a second screw.

7. The mounting structure of the reflector cup and face ring in a downlight according to claim 6, characterized in that: A concave annular groove (71) is provided at the lower end of the lens (65), and the upper end of the reflector (4) is located in the concave annular groove (71).

8. The mounting structure of the reflector cup and face ring in a downlight according to claim 1, characterized in that: Spring clips (81) are symmetrically arranged on the outer wall of the downlight housing (1).

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