Lens face and ring integrated down lamp

Abstract

The utility model relates to a kind of lens face ring integration's down lamp, belong to LED down lamp technical field, including shell, the upper portion of shell is connected with shell cover, composition lamp body;The inside lower portion of lamp body is fixed lens seat;Lens seat's inside is installed with lens face ring;Lens face ring includes lens and face ring;Lens face ring outside has recess, lens seat inboard has protrusion, and is connected with the recess on lens face ring. Lens face ring integration's design eliminates multiple assembly interface, fundamentally solves the problem of light path deviation and structural looseness, greatly enhances the luminous stability of down lamp.

Description

Technical Field

[0001] This utility model relates to the field of LED downlight technology, specifically to a downlight with an integrated lens and ring. Background Technology

[0002] Urbanization, consumption upgrades, and the popularization of smart homes are driving the growth in demand for downlights. Residential buildings require personalized lighting, and commercial buildings need customized lighting. Downlights play an important role in today's society.

[0003] The current downlight market offers a wide variety of specifications. The traditional "one light, one angle" design results in a complex array of specifications, leading to a large number of products that dealers need to display on their shelves, putting significant pressure on their inventory and shelving. Even adjustable downlights have complex structures and are cumbersome to operate. Existing adjustable downlight lenses are simply connected directly to the lens mount, with the lens and face ring installed separately, which still presents issues with light emission stability.

[0004] For example, a patent document disclosed as "an LED downlight with adjustable light emission angle, color temperature, and power" (publication number CN 119802537 A) includes a housing, a rear cover connected to the top of the housing, a drive board installed inside the rear cover, and wires connected to the drive board on the rear cover. Two symmetrical springs are connected to the housing, a light source board is installed at the top inside the housing, and a lens mount located below the light source board is connected inside the housing. A lens is installed inside the lens mount, and a face ring is detachably connected below the lens mount. Although it can also adjust the light emission angle, the lens and face ring are installed separately, which fails to solve the problem of light emission stability. Moreover, there are three DIP switches: DIP switch one, DIP switch two, and DIP switch three. The three switches coordinate to achieve the function of adjusting the light emission angle, resulting in a complex structure and inconvenient operation. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problem of unstable light emission when the downlight is working by designing the lens ring as an integrated technology. Another objective of this invention is to solve the problem of cumbersome operation when adjusting the light emission angle by setting up a DIP switch control circuit.

[0006] To solve the above problems, the present invention adopts the following technical solution: A downlight with an integrated lens and lens ring includes a housing with a cover attached to its top, forming the lamp body. A lens mount is fixed inside the lower part of the lamp body. A lens ring is installed inside the lens mount. The lens ring includes a lens and a ring itself. This integrated lens ring structure eliminates multiple assembly interfaces, fundamentally solving the problems of light path misalignment and structural loosening. The reduced number of parts and simplified assembly process lowers production costs and time.

[0007] Preferably, the outer side of the lens ring has a groove, and the inner side of the lens mount has a protrusion, which connects with the groove on the lens ring, so that the integrated lens structure is tightly connected to the lens mount and the light emission is stable when moving.

[0008] Preferably, the cover and the housing are connected by snaps to form a sealed body, which reduces dust from entering the lamp body and extends the life of the downlight.

[0009] As a preferred option, a light source board is installed inside the lamp body, and the light source board is connected to the control circuit of the lamp beads to control the downlight to work at multiple light-emitting angles. The circuit design presents a specific light-emitting angle.

[0010] Preferably, the light source board is equipped with narrow-angle LED groups and wide-angle LED groups, which include alternating LEDs; this ensures that the downlight can work at multiple light-emitting angles, and the alternating arrangement of the LEDs makes the light emission more uniform and layered.

[0011] Preferably, the light source board is fixed to the light source board holder with screws, and the light source board holder is connected to the lens holder below, which makes the light source board more secure. At the same time, the connection between the light source board holder and the lens holder also makes the lens ring more tightly fixed to the lens holder, resulting in more stable light emission.

[0012] Preferably, a drive board is installed inside the housing cover. The drive board is fixed to the protrusion inside the housing cover and plays a role in stabilizing the voltage to prevent damage to the lamp due to excessive or insufficient current.

[0013] As a preferred option, the cover is equipped with a DIP switch, which allows for setting different positions to adjust the light-emitting angle according to actual conditions.

[0014] Preferably, the cover has a cable management groove to fix the wires connected to the drive board, so that the wires are kept protruding and connected to the power supply.

[0015] Preferably, two symmetrical springs are connected to the housing.

[0016] Compared with the prior art, the present invention has the following technical advantages: 1. This utility model integrates the lens surface ring, eliminating multiple assembly interfaces and fundamentally solving the problems of optical path misalignment and structural loosening.

[0017] 2. The complex angle adjustment function has been simplified into a simple DIP switch operation, greatly improving the user experience.

[0018] 3. The number of parts is reduced and the assembly process is simplified, which reduces production costs and labor time. Attached Figure Description

[0019] Figure 1 This is an exploded view of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the lens mount of this utility model; Figure 4 This is a cross-sectional view of the lens of this utility model; Figure 5 This is the control circuit diagram of this utility model; In the diagram: 1. Shell cover 2. Wire 3. Spring 4. Drive board 5. Light source board 6. Light source board holder 7. Lens holder 8. Lens face ring 9. Housing 81. Groove 82. Face ring 83. Lens 71. Protrusion Detailed Implementation

[0020] Example 1 Reference Figure 1 The exploded view shown illustrates that the downlight of this invention includes a housing 9, a cover 1, a drive board 4, a light source board 5, a light source board holder 6, a lens holder 7, a lens ring 8, a spring 3, and a wire 2. The core of its dual-angle adjustment lies in the following design: the cover 1 and the housing 9 are connected by snaps or screws to form a sealed body. The drive board 4 is fixed inside the cover 1 and connected to AC power via the wire 2, converting it to DC power suitable for LED operation; the light source board 5 is precisely fixed below the drive board via the light source board holder 6 and connected to it via a wire.

[0021] On the same substrate of the light source board 5, at the same position, there are two LED bead groups with physically staggered but independent circuits; one is a narrow-angle LED bead group, whose chips are closely arranged in the central area of ​​the light-emitting surface to form a small and concentrated effective light-emitting surface S1; the other is a wide-angle LED bead group, whose chips are dispersed in the periphery of the aforementioned central area to form a relatively large and dispersed effective light-emitting surface S2.

[0022] A two-position DIP switch is directly soldered onto the driver board 4, with its two outputs connected to the control circuits of two LED bead groups respectively. Users can physically switch the corresponding circuits on and off by toggling the switch's positions. Position A: Only the narrow-angle LED bead group's circuit is active. The luminous area is S1; after refraction by the upper fixed lens ring 8, the light, due to its concentrated light source and narrow beam angle, forms a 24° narrow beam with high central intensity and clear boundaries, suitable for accent lighting. Position B: Only the wide-angle LED bead group's circuit is active. The luminous area is S2; after passing through the same lens ring 8, the light, due to its dispersed light source and wider beam angle, forms a large, uniform, and soft 36° wide beam, suitable for ambient lighting, such as illuminating an entire room or corridor.

[0023] The lens ring 8 is fixed directly below the light source plate by the lens mount 7; the protrusion 71 designed on the inner side of the lens mount 7 and the groove 81 on the outer side of the lens ring 8 form a precise fit; its unique feature is that the lens body and the ring, which is usually a separate decorative piece, are integrated. This structure ensures a constant distance between the lens and the light source plate, which is the key to ensuring accurate and repeatable optical effects for the two emission angles; all optical designs are matched and finalized during the design phase.

[0024] This embodiment serves as the basic model. The integrated lens ring structure eliminates multiple assembly interfaces, fundamentally solving the problems of optical path misalignment and structural loosening. The complex angle adjustment function is simplified to a simple DIP switch operation, greatly improving the user experience. The reduced number of parts and simplified assembly processes lower production costs and time.

[0025] Example 2 This embodiment is a functional enhancement of Embodiment 1. The downlight includes a cylindrical housing 9 primarily die-cast from aluminum alloy, covered by a cover 1 injection-molded from polycarbonate. The cover 1 and housing 9 are connected by three evenly distributed snap-fit ​​structures along their circumference, forming a sealed unit that effectively prevents dust and insects from entering, protecting the internal optical and electrical components. Inside the cover 1, at the top, a circular light source plate 5, typically made of aluminum substrate, is fixedly mounted with screws to facilitate heat dissipation. Below this light source plate 5, a light source plate holder 6 is connected with screws. This structure not only provides additional mechanical support, preventing deformation of the light source plate due to prolonged heat or vibration, but also acts as a thermal bridge, assisting in the conduction of heat from the light source plate 5 to the housing 9 for heat dissipation.

[0026] Inside the housing 9, immediately below the light source plate holder 6, is a plastic lens holder 7. The core optical component of this invention—the lens ring 8—is embedded within the lens holder 7. This lens ring 8 is made of optical-grade acrylic material using a one-time injection molding process. Its unique feature is that the lens body and the ring, which is usually a separate decorative piece, are integrated into one unit. A ring-shaped groove 81 is machined on the side of the lens ring 8, i.e., on the outer side of the ring. Correspondingly, a ring of precisely matching protrusions 71 is provided on the inner wall of the lens holder 7. During installation, simply insert the lens ring 8 axially into the lens holder 7; the groove 81 and the protrusion 71 will then engage tightly, achieving precise radial positioning and secure axial fixation, completely avoiding the assembly gaps, misalignment, or loosening problems that may occur with traditional separate rings and lenses.

[0027] Two sets of LED beads are soldered onto the light source board 5: one set is a wide-angle LED bead group with a beam angle of approximately 36°, and the other set is a narrow-angle LED bead group with a beam angle of approximately 24°. These LED beads are arranged alternately on the light source board 5 to ensure that the light output is as uniform as possible in any mode. The driver board 4 also integrates a simple control circuit and a four-position DIP switch. The different states of the DIP switch, the ON / OFF combination, are recognized by the control circuit, thereby driving different LED bead groups to work.

[0028] Inside the housing 1, next to the light source board 5, is a driver board 4, which is a constant current LED driver. Wires 2 are introduced from the outside and directly connected to the input terminal of the driver board 4. The output terminal of the driver board 4 is connected to the light source board 5 through wires to supply power to it.

[0029] Before use, first disconnect the power. Then open the lamp holder and use your finger or a small tool to toggle the DIP switch on driver board 4. Mode 1, Codes 1-4: ON, OFF, OFF, OFF: Only the narrow-angle LED group lights up, producing a focused, bright "focal light," suitable for illuminating decorative paintings, sculptures, and other objects that need emphasis. Mode 2, Codes 1-4: OFF, ON, OFF, OFF: Only the wide-angle LED group lights up, producing a soft, wide-range "ambient light," suitable for basic lighting, evenly illuminating the entire space. Mode 3, Codes 1-4: ON, ON, OFF, OFF: Both narrow-angle and wide-angle LED groups light up simultaneously, combining two light effects to provide a brighter, more natural-looking "mixed light," meeting the lighting needs of all scenarios. After setting, close the lamp holder, connect the power, and the downlight will operate according to the preset mode. The integrated lens ensures accurate and stable light output, without stray light or dark areas.

[0030] Example 3 This embodiment is designed for humid environments such as bathrooms, kitchens, and basements, where water or oil stains are likely to splash. Building upon all the advantages of Embodiment 2, it focuses on enhancing its sealing and corrosion resistance.

[0031] A silicone sealing ring is added to the snap-fit ​​connection between the cover 1 and the housing 9 to ensure an absolute seal at the joint, effectively preventing moisture and splashing water from entering. The lens ring 8 still adopts an integrated design, but the material can be selected to have better UV resistance and stronger chemical corrosion resistance to prevent the lens from yellowing and aging due to long-term humid and hot environments. The surface of the light source board 5 is coated with conformal coating to prevent moisture, salt spray, and mildew, protecting the electronic components and circuits on it from corrosion by humid air. The entire drive board 4 is sealed with epoxy resin, completely encasing it in epoxy resin to achieve insulation, waterproofing, and reinforcement.

[0032] A waterproof and breathable valve can be added at an appropriate location inside the housing, such as on the light source plate holder 6. This valve allows for pressure balance when the internal air expands and contracts due to heat, but prevents liquid water from entering, thus avoiding fogging inside the lamp. The surfaces of metal parts such as the housing 9 and spring 3 undergo special anti-corrosion treatment, such as using stainless steel or anodizing and sealing treatment, to resist corrosion in humid environments.

[0033] The operating process is exactly the same as in Example 2. Before installation, users can set the desired lighting angle in a dry environment using a DIP switch; for example, a narrow-angle focused beam in front of a bathroom mirror and a wide-angle floodlight in the shower area. Its high protective characteristics ensure reliability and safety for long-term use in humid environments. While retaining the core functions of adjustable angle and stable light output, it also possesses excellent moisture-proof, waterproof, and corrosion-resistant properties. This expands the application boundaries of adjustable angle downlights, making them safe for use in humid locations.

[0034] Example 4 This embodiment is designed for high-end commercial lighting and smart home scenarios. In addition to adjustable angle, it integrates color temperature adjustment and intelligent control interface, providing richer capabilities for customizing the lighting environment.

[0035] This embodiment upgrades the light source board and control system: the LED groups on the light source board 5 are no longer simply grouped into narrow-angle and wide-angle groups. Instead, they are configured as four groups of LEDs: narrow-angle cool white light (e.g., 5000K), narrow-angle warm white light (e.g., 2700K), wide-angle cool white light, and wide-angle warm white light. These four groups of LEDs are also arranged alternately to ensure uniform light color mixing.

[0036] The control circuit has become more complex, integrating a microcontroller, and the DIP switches on driver board 4 have also been upgraded to more bits, such as 6 or 8 bits. The first few bits control the angle combination, such as narrow angle only, wide angle only, or fully open; the last few bits control the color temperature combination, such as cool white only, warm white only, simultaneous full power output of both cool and warm colors to obtain neutral light, and mixing different proportions of cool and warm colors to obtain variable color temperature.

[0037] Driver board 4 has a reserved input interface for analog dimming signals. Users can either use traditional DIP switches to preset scenes or send signals through the intelligent lighting system to perform stepless dimming and stepless color temperature adjustment of the lamps to achieve dynamic lighting scenes.

[0038] The optical design of the lens ring 8 is more precise, and it has been optimized for four groups of LEDs with different positions and characteristics to ensure that high-quality, glare-free light spots can be output in any mixed mode.

[0039] With the DIP switch, dozens of fixed lighting modes can be preset. When connected to a smart system, the preset functions of the DIP switch can be overridden. Users can adjust the brightness and color temperature with infinite precision through a mobile app or wall panel, and fine-tune the effective beam angle by controlling the power of the light group to achieve truly personalized lighting.

[0040] This embodiment upgrades the simple "angle adjustment" function to a comprehensive "light environment customization" function. It combines the convenience of manual offline settings with the flexibility of online intelligent control, representing a perfect blend of tradition and intelligence. The integrated lens ensures excellent and stable light performance even in the most complex mixed lighting modes.

[0041] Example 5 This embodiment is designed for a minimalist interior design style, aiming for complete integration of the lighting fixture with the ceiling to achieve a "light without seeing the lamp" effect. The key is to drastically reduce the structural thickness and adopt a frameless design. This embodiment optimizes the mechanical structure: the housing 9 is designed to be extremely thin, with an overall thickness controlled within 30mm. The driver board 4 adopts a highly integrated ultra-thin drive solution, and can even use a remote drive method, moving the drive power supply to another location within the ceiling, further reducing the thickness of the lamp body.

[0042] In this embodiment, the lens ring 8 plays a more important role. Its ring diameter is made large so that it can completely cover the ceiling opening after installation and directly serve as the decorative surface of the light fixture. The ring surface can be treated with various decorative effects such as frosted, matte black, and brushed metal, perfectly integrating into the ceiling.

[0043] Installation is achieved using pre-embedded components. First, a mounting bracket is fixed to the ceiling opening with screws. Then, the light fixture body is quickly locked onto the bracket using a swivel or snap-fit ​​mechanism. The traditional symmetrical spring 3 is replaced here by a more concealed and reliable mechanical clip.

[0044] Due to the ultra-thin lamp body and the extremely close distance between the light source and the lens, the secondary optical design of the lens ring 8 is subject to extremely high requirements. The advantages of integrated design are highlighted here: optical designers can perform optical simulation and optimization of the lens and ring as a whole, ensuring precise light control even at extremely short distances and avoiding light leakage or glare.

[0045] Installation requires first fixing the embedded parts. However, the angle adjustment method remains the same; the angle still needs to be set via a DIP switch before installation. After installation, the visual effect is excellent, with only a smooth lens surface embedded in the ceiling, from which light elegantly shines out. This embodiment satisfies the high-end market's pursuit of ultimate aesthetics and space utilization. It proves that the integrated structure of this utility model is also applicable to ultra-thin lighting fixtures, which are technically more challenging, demonstrating the flexibility of its structural design.

Claims

1. A downlight with an integrated lens and ring, characterized in that: The lamp body is composed of a housing (9) and a cover (1) connected to the top of the housing (9); A lens mount (7) is fixed inside the lower part of the lamp body; The lens mount (7) has a lens surface ring (8) installed inside; The lens ring (8) includes a lens (83) and a ring (82).

2. A downlight with an integrated lens and ring as described in claim 1, characterized in that: The lens ring (8) has a groove (81) on the outside and a protrusion (71) on the inside of the lens mount (7), which connects with the groove (81) on the lens ring (8).

3. A downlight with an integrated lens and ring as described in claim 1, characterized in that: The cover (1) and the housing (9) are connected by a snap fastener.

4. A downlight with an integrated lens and ring as described in claim 1, characterized in that: The lamp body is equipped with a light source board (5), and the light source board (5) is connected to the control circuit of the lamp beads.

5. A downlight with an integrated lens and ring as described in claim 4, characterized in that: The light source board (5) is provided with narrow-angle LED bead groups and wide-angle LED bead groups; the narrow-angle LED bead groups and wide-angle LED bead groups include LED beads arranged alternately.

6. A downlight with an integrated lens and ring as described in claim 1 or 4, characterized in that: The light source board (5) is fixed to the light source board base (6) by screws, and the light source board base (6) is connected to the lens base (7) below.

7. A downlight with an integrated lens and ring as described in claim 1, characterized in that: A drive plate (4) is installed inside the cover (1), and the drive plate (4) is fixed to the protrusion inside the cover (1).

8. A downlight with an integrated lens and ring as described in claim 1, characterized in that: The cover (1) is equipped with a DIP switch.

9. A downlight with an integrated lens and ring according to claim 1 or 7, characterized in that: The cover (1) is provided with a cable management groove to fix the wire (2) connected to the drive plate (4).

10. A downlight with an integrated lens and ring as described in claim 1, characterized in that: Two symmetrical springs (3) are connected to the housing.

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