Novel LED down lamp

Abstract

The utility model discloses a novel LED (light-emitting diode) down lamp which is more flexible, and a light-transmitting module inside the novel LED down lamp is convenient to replace. The novel LED down lamp comprises a lamp body, a heat dissipation cylinder, a circuit board, a light-transmitting module and a face ring. The lamp body is provided with a first cavity, and a step is arranged at an opening of the first cavity; the heat dissipation cylinder is arranged in the first cavity in a matched mode and attached to the side wall and the bottom wall of the first cavity. The heat dissipation cylinder is provided with a second cavity; the circuit board is arranged in the second cavity and attached to the bottom wall of the second cavity, and the circuit board is provided with a plurality of LED lamp beads. The light-transmitting module is arranged in the second cavity in a matched mode, and the periphery of the light-transmitting module abuts against the step. And the surface ring is movably matched with the side wall of the step in a rotary clamping manner and is used for limiting the movement of the light-transmitting module.

Description

Technical Field

[0001] This utility model belongs to the field of downlight technology, and specifically refers to a new type of LED downlight. Background Technology

[0002] Downlights are a common type of lighting fixture, consisting of a cylindrical housing and built-in LED bulbs. They are typically installed on ceilings, either recessed or surface-mounted, and are primarily used for indoor lighting, providing uniform, diffused light. Due to their simple appearance and good lighting effect, downlights are widely used in homes, shopping malls, offices, and other places.

[0003] Existing downlights are limited in form, and their internal parts are usually not interchangeable. This means that each product requires a special mold for its lamp body and other exterior accessories, resulting in high production costs. Users also cannot customize the use of the lights, lacking autonomy and flexibility. Utility Model Content

[0004] The main purpose of this utility model is to provide a new type of LED downlight that solves the problems existing in the prior art. It can use a unified mold, facilitates the replacement of the internal light-transmitting module, and is more flexible.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A novel LED downlight includes a lamp body, a heat sink, a circuit board, a light-transmitting module, and a face ring. The lamp body has a first cavity with a step at its opening. The heat sink is fitted into the first cavity and abuts against its side and bottom walls. The heat sink has a second cavity. The circuit board is disposed in the second cavity and abuts against its bottom wall, and the circuit board has a plurality of LED beads. The light-transmitting module is fitted into the second cavity, with its periphery resting against the step. The face ring engages with the side wall of the step via a rotational snap-fit ​​mechanism to restrict the movement of the light-transmitting module.

[0007] The lamp body is made of PA material; the circuit board is an aluminum substrate and is fixed to the bottom of the second cavity by screws.

[0008] The bottom of the second cavity is provided with a switch hole, and the surface of the lamp body is provided with a switch groove at the corresponding position; a lever is slidably fitted in the switch groove, and the lever is kinetically connected to a toggle switch mounted on the circuit board.

[0009] The side of the face ring facing the lamp body is provided with a protruding ring embedded in the opening of the first cavity. A first L-shaped retaining wall and a second L-shaped retaining wall are provided between the circumferential surface of the protruding ring and the side wall of the step for rotational engagement.

[0010] Preferably, the opposing surfaces of the first L-shaped retaining wall and the second L-shaped retaining wall are provided with concave and convex points that fit together.

[0011] Preferably, the periphery of the light-transmitting module is provided with a clearance groove to avoid the second L-shaped retaining wall.

[0012] The sidewall of the step is provided with a buckle for limiting the axial movement of the light-transmitting module and a rib for limiting the circumferential rotation of the light-transmitting module; the periphery of the light-transmitting module is provided with a positioning groove for the rib to be embedded.

[0013] The light-transmitting module may include an anti-glare reflective bowl with a first flange on its periphery, and a first lens snapped onto the bottom of the anti-glare reflective bowl, with the first flange resting on the step.

[0014] The light-transmitting module may also include a second lens with a second flange on its periphery, and a first light-concentrating reflective bowl that fits on the periphery of the second lens, with the second flange resting on the step.

[0015] The light-transmitting module may also include a flat glass sheet with a third flange on its periphery, and a second light-concentrating reflective bowl that fits between the flat glass sheet and the circuit board, with the third flange resting on the step.

[0016] After adopting the above technical solution, the present invention has the following technical effects:

[0017] This utility model uses a rotating snap-fit ​​method to install the face ring, which allows for quick assembly and disassembly of the face ring. The operation is simple and convenient for users to replace the internal light-transmitting module. Manufacturers can also use a unified mold to process the lamp body and heat sink during production, resulting in lower costs. The circuit board, heat sink, and lamp body are attached sequentially, which can achieve more efficient and stable heat dissipation. Attached Figure Description

[0018] Figure 1 This is an exploded view of the first embodiment of the present invention;

[0019] Figure 2 This is a perspective view of the surface ring of the first embodiment of the present utility model;

[0020] Figure 3 A cross-sectional view of the first embodiment of this utility model. Figure 1 ;

[0021] Figure 4A cross-sectional view of the first embodiment of this utility model. Figure 2 ;

[0022] Figure 5 This is an exploded view of the second embodiment of the present invention;

[0023] Figure 6 A cross-sectional view of the second embodiment of this utility model. Figure 1 ;

[0024] Figure 7 A cross-sectional view of the second embodiment of this utility model. Figure 2 ;

[0025] Figure 8 This is an exploded view of the third embodiment of the present invention;

[0026] Figure 9 A cross-sectional view of the third embodiment of this utility model. Figure 1 ;

[0027] Figure 10 A cross-sectional view of the third embodiment of this utility model. Figure 2 ;

[0028] Explanation of icon numbers:

[0029] 1-Lamp body; 11-First cavity; 12-Step; 13-Switch slot; 14-Second L-shaped retaining wall; 15-Protrusion; 16-Snap-on; 17-Rib;

[0030] 2-Heat dissipation cylinder; 21-Second cavity; 22-Switch hole;

[0031] 3-Circuit board; 31-LED beads;

[0032] 4-Transmitting module; 41-Avoidance groove; 42-Positioning groove; 43-First flange; 44-Second flange; 45-Third flange; 4a-Anti-glare reflector bowl; 4b-First lens; 4c-Second lens; 4d-First focusing reflector bowl; 4e-Planar glass plate; 4f-Second focusing reflector bowl;

[0033] 5-Face ring; 51-Flange; 52-First L-shaped retaining wall; 53-Concave point;

[0034] 6-Lever;

[0035] 7-Toggle switch;

[0036] 8-Wire clamp cover;

[0037] 9-Fixed snap ring. Detailed Implementation

[0038] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0039] refer to Figure 1-10 As shown, this utility model discloses a novel LED downlight, including a lamp body 1, a heat sink 2, a circuit board 3, a light-transmitting module 4, and a face ring 5;

[0040] The lamp body 1 is provided with a first cavity 11, and a step 12 is provided at the opening of the first cavity 11;

[0041] The heat sink 2 is fitted inside the first cavity 11 and is attached to the side wall and bottom wall of the first cavity 11 so that the heat of the heat sink 2 can be directly transferred to the lamp body 1; the heat sink 2 is provided with a second cavity 21;

[0042] The circuit board 3 is disposed inside the second cavity 21 and is attached to the bottom wall of the second cavity 21. The circuit board 3 is provided with a number of LED beads 31. When the LED beads 31 emit light, the heat generated is transferred through the circuit board 3 to the heat sink 2 and the lamp body 1, and then to the air.

[0043] The light-transmitting module 4 is fitted inside the second cavity 21, and its periphery rests against the step 12.

[0044] The face ring 5 is movably engaged with the side wall of the step 12 by a rotating snap-fit ​​mechanism, which is used to restrict the movement of the light-transmitting module 4.

[0045] Through the above solution, the face ring 5 is installed by rotation and snap-fit, which can realize quick disassembly and assembly of the face ring 5. The operation is simple and convenient for users to replace the internal light-transmitting module 4. Manufacturers can also use a unified mold to process the lamp body 1 and heat sink 2 during production, which reduces costs. The circuit board 3, heat sink 2 and lamp body 1 are attached in sequence, which can achieve more efficient and stable heat dissipation.

[0046] In some embodiments of this utility model, the lamp body 1 is made of PA (polyamide) material with good thermal conductivity and stability.

[0047] In some embodiments of this utility model, the circuit board 3 is an aluminum substrate with better heat dissipation performance, and is fixed to the bottom of the second cavity 21 by screw locking, so as to achieve relative fixation with the heat sink 2.

[0048] In some embodiments of this utility model, a switch hole 22 is provided at the bottom of the second cavity 21, and a switch groove 13 is provided on the surface of the lamp body 1 at the corresponding position; a lever 6 is slidably fitted in the switch groove 13, and the lever 6 is connected to a toggle switch 7 mounted on the circuit board 3. Different toggle positions of the toggle switch 7 correspond to different switch pin positions of the lever 6, and each switch pin position can correspond to a different circuit of the circuit board 3, with each circuit corresponding to a different color temperature.

[0049] In some embodiments of this utility model, a wire clamping cover 8 is sequentially inserted through the lamp body 1 and the heat sink 2 for fixing the wires connected to the circuit board 3.

[0050] In some embodiments of this utility model, the surface of the above-mentioned ring 5 facing the lamp body 1 is provided with a protruding ring 51 embedded in the opening of the first cavity 11, and a first L-shaped retaining wall 52 and a second L-shaped retaining wall 14 are provided between the circumferential surface of the protruding ring 51 and the side wall of the step 12 for rotational engagement.

[0051] Furthermore, the opposing surfaces of the first L-shaped retaining wall 52 and the second L-shaped retaining wall 14 are provided with concave points 53 and convex points 15 that fit together, which can realize the positioning of the face ring 5 after it is rotated and snapped on the lamp body 1, and prevent the face ring 5 from shaking and disengaging.

[0052] Meanwhile, the periphery of the aforementioned light-transmitting module 4 is provided with a clearance groove 41 for avoiding the second L-shaped barrier wall 14.

[0053] In some embodiments of this utility model, the sidewall of the aforementioned step 12 is provided with a buckle 16 for limiting the axial movement of the light-transmitting module 4, and a rib 17 for limiting the circumferential rotation of the light-transmitting module 4; a positioning groove 42 for the rib 17 to be embedded is provided on the periphery of the light-transmitting module 4. This makes the light-transmitting module 4 more stable after installation and prevents it from shaking. Here, "axial" and "circumferential" are both relative to the axis of the lamp body 1 / first cavity 11.

[0054] In some embodiments of this utility model, fixing spring clips 9 are provided on both sides of the lamp body 1 to fix the downlight on the ceiling or other installation positions.

[0055] See Figure 1-4 The first embodiment of this utility model is shown.

[0056] The aforementioned light-transmitting module 4 includes an anti-glare reflector bowl 4a with a first flange 43 on its periphery, and a first lens 4b snapped onto the bottom of the anti-glare reflector bowl 4a. The first flange 43 rests on the step 12. The aforementioned clearance groove 41 and positioning groove 42 are both located on the periphery of the first flange 43. The first lens 4b and the anti-glare reflector bowl 4a are assembled by snap-fit ​​connection, facilitating the replacement of lenses with different focusing effects.

[0057] See Figure 5-7 The second embodiment of this utility model is shown.

[0058] The aforementioned light-transmitting module 4 includes a second lens 4c with a second flange 44 on its periphery, and a first light-concentrating reflective bowl 4d that fits on the periphery of the second lens 4c. The second flange 44 rests on the step 12. The aforementioned clearance groove 41 and positioning groove 42 are both provided on the periphery of the second flange 44.

[0059] See Figure 8-10 The third embodiment of this utility model is shown.

[0060] The aforementioned light-transmitting module 4 includes a flat glass sheet 4e with a third flange 45 on its periphery, and a second light-concentrating reflective bowl 4f that fits between the flat glass sheet 4e and the circuit board 3. The third flange 45 rests on the step 12. The aforementioned clearance groove 41 and positioning groove 42 are both provided on the periphery of the third flange 45.

[0061] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A novel LED downlight, characterized in that: Includes lamp body, heat sink, circuit board, light-transmitting module and face ring; The lamp body is provided with a first cavity, and a step is provided at the opening of the first cavity; The heat dissipation cylinder is fitted into the first cavity and is attached to the side wall and bottom wall of the first cavity; the heat dissipation cylinder is provided with a second cavity; The circuit board is disposed in the second cavity and is attached to the bottom wall of the second cavity; the circuit board is provided with a number of LED beads. The light-transmitting module is fitted into the second cavity, with its periphery resting against the step; The face ring engages with the side wall of the step via a rotational snap-fit ​​mechanism to restrict the movement of the light-transmitting module.

2. The novel LED downlight as described in claim 1, characterized in that: The lamp body is made of PA material; the circuit board is an aluminum substrate and is fixed to the bottom of the second cavity by screws.

3. The novel LED downlight as described in claim 1, characterized in that: The bottom of the second cavity is provided with a switch hole, and the surface of the lamp body is provided with a switch groove at the corresponding position; a lever is slidably fitted in the switch groove, and the lever is kinetically connected to a toggle switch mounted on the circuit board.

4. The novel LED downlight as described in claim 1, characterized in that: The side of the face ring facing the lamp body is provided with a protruding ring embedded in the opening of the first cavity. A first L-shaped retaining wall and a second L-shaped retaining wall are provided between the circumferential surface of the protruding ring and the side wall of the step for rotational engagement.

5. The novel LED downlight as described in claim 4, characterized in that: The opposing surfaces of the first L-shaped retaining wall and the second L-shaped retaining wall are provided with concave and convex points that fit together.

6. The novel LED downlight as described in claim 4, characterized in that: The periphery of the light-transmitting module is provided with a clearance groove to avoid the second L-shaped retaining wall.

7. The novel LED downlight as described in claim 1, characterized in that: The sidewall of the step is provided with a buckle for limiting the axial movement of the light-transmitting module and a rib for limiting the circumferential rotation of the light-transmitting module; the periphery of the light-transmitting module is provided with a positioning groove for the rib to be embedded.

8. The novel LED downlight as described in any one of claims 1 to 7, characterized in that: The light-transmitting module includes an anti-glare reflective bowl with a first flange on its periphery, and a first lens snapped onto the bottom of the anti-glare reflective bowl, with the first flange resting on the step.

9. The novel LED downlight as described in any one of claims 1 to 7, characterized in that: The light-transmitting module includes a second lens with a second flange on its periphery, and a first light-concentrating reflective bowl that fits on the periphery of the second lens, with the second flange resting on the step.

10. The novel LED downlight according to any one of claims 1 to 7, characterized in that: The light-transmitting module includes a flat glass sheet with a third flange on its periphery, and a second light-concentrating reflective bowl that fits between the flat glass sheet and the circuit board, with the third flange resting on the step.

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