A down lamp structure

Abstract

The utility model discloses a down lamp structure, which comprises a cylinder body and a surface ring body detachably connected to the cylinder body, wherein the cylinder body is provided with a COB lamp bead and a lens piece, and the light emitted by the COB lamp bead is reflected by the lens piece and then emitted along the surface ring body. The utility model makes the surface ring body a replaceable component through the detachable connection between the surface ring body and the cylinder body, so that the user can replace the old surface ring body and assemble a new surface ring body without replacing the down lamp as a whole, thereby improving the appearance flexibility and user experience of the product. In addition, for the production enterprise, the down lamp structure can realize a separate production mode of cylinder body standardized production + surface ring body diversified design, the cylinder body can be produced on a large scale according to a unified standard, the mold cost of designing multiple cylinder body structures due to the adaptation of different surface rings is reduced, and the surface ring body can develop products of different styles, colors and materials according to market demand without the need for synchronous adjustment of the cylinder body structure.

Description

Technical Field

[0001] This utility model relates to the field of downlight technology, and in particular to a downlight structure. Background Technology

[0002] In the field of modern indoor lighting, downlights are widely used in various scenarios such as homes, commercial offices, and hotels due to their convenient installation, soft light, and ability to blend with architectural and decorative styles, becoming an important part of indoor lighting systems. As users' demands for personalized aesthetics in interior spaces continue to increase, downlights not only need to meet basic lighting functions, but their appearance design and compatibility with the surrounding environment are also gradually becoming one of the core requirements for users.

[0003] Currently, most mainstream downlight products on the market adopt an integrated design of "a single lamp with a single fixed face ring". Specifically, the lamp body (including core functional components such as the light source module, heat dissipation structure, and driver circuit) and the face ring (as an aesthetic decoration and installation adapter) are assembled through a fixed connection structure. For example, non-removable snap-fit ​​interference fit, one-time locking screw connection, or direct glue bonding can be used to make the lamp body and face ring form an inseparable integral structure.

[0004] The aforementioned traditional design schemes have significant functional limitations and practical defects, mainly reflected in the following aspects:

[0005] 1. Poor appearance adaptability, unable to meet personalized needs: Since the face ring is fixedly connected to the lamp body and cannot be separated, if users need to change the face ring to a different style, color or material according to the adjustment of the space decoration style (such as changing from modern minimalist style to light luxury style), the change of scene function (such as switching from daily lighting to ambient lighting) or the wear and tear of the face ring appearance (such as surface scratches or fading), they can only choose to replace the entire downlight product. As a result, the core lighting function components of the original lamp body are idle due to the face ring problem, which not only wastes resources, but also greatly increases the user's usage cost.

[0006] 2. For manufacturers, in order to meet the different user needs for downlight appearance, it is necessary to design a corresponding lamp body adaptation structure for each face ring and produce an integrated finished product of "lamp body + specific face ring"; in inventory management, it is also necessary to prepare inventory separately for different styles of integrated downlights, resulting in an increase in the types of production molds and a large number of inventory SKUs (stock keeping units), which not only increases the company's production and manufacturing costs and inventory management costs, but also restricts the company's rapid iteration and update of downlight appearance styles, making it difficult to flexibly respond to the dynamic market demand for appearance design.

[0007] In summary, the existing downlight design, which features a fixed connection between the lamp body and the face ring that cannot be disassembled or replaced, is no longer suitable for current users' demands for personalized appearance and low-cost operation. It also imposes both efficiency and cost constraints on manufacturers. Therefore, it is urgent to optimize and improve the structural design of downlights to address the aforementioned technical deficiencies. Utility Model Content

[0008] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a downlight structure.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] This utility model embodiment provides a downlight structure, including: a cylindrical body and a surface ring body detachably connected to the cylindrical body. The cylindrical body is provided with COB lamp beads and a lens element. The light emitted by the COB lamp beads is reflected by the lens element and then emitted along the surface ring body.

[0011] In one specific embodiment, the cylinder body is composed of a cylinder cover and a heat sink, the heat sink being connected to the top of the cylinder cover, and the COB LED and the lens being connected to the heat sink.

[0012] In one specific embodiment, the top of the heat sink is further provided with a COB bracket, and the COB LED is connected to the COB bracket.

[0013] In one specific embodiment, the bottom of the heat sink is further provided with a limiting groove, and the bottom of the lens element has an annular protrusion extending outward, the annular protrusion being adapted to the limiting groove.

[0014] In one specific embodiment, a sealing ring is also provided between the lens element and the cylinder cover.

[0015] In one specific embodiment, the outer side of the cylinder cover is provided with a snap-fit ​​protrusion, and the face ring body is provided with a snap-fit ​​groove corresponding to the snap-fit ​​protrusion.

[0016] In one specific embodiment, the distance between the lower surface of the lens element and the lower surface of the face ring body is 25mm-35mm.

[0017] In one specific embodiment, the top of the heat sink is also provided with an end cover and a male terminal wire. One end of the male terminal wire passes through the end cover and is electrically connected to the COB LED, and the other end is connected to an external power supply box.

[0018] In one specific embodiment, both the cylinder cover and the radiator are made of aluminum alloy.

[0019] In one specific embodiment, the lens element is horn-shaped and transparent.

[0020] The advantages of this downlight structure compared to existing technologies are as follows: The detachable connection between the face ring and the cylinder allows the face ring to become an independently replaceable component. Users do not need to replace the entire downlight; they only need to disassemble the old face ring and install a new one according to changes in interior decoration style, scene functional requirements, or wear and tear of the face ring. This not only reduces the usage costs incurred by users in adapting to different appearances but also allows the same downlight to adapt to various scenes and styles, significantly improving the product's appearance flexibility and user experience. Furthermore, for manufacturers, this downlight structure enables "standardized production of the cylinder + face ring..." The "diversified design" of the split production model allows the tube body, as a component integrating core functions such as COB LED beads and lenses, to be mass-produced using a unified standard, reducing the mold costs associated with designing multiple tube body structures to accommodate different face rings. The face ring body can be quickly developed in different styles, colors, and materials according to market demand without the need for simultaneous adjustments to the tube body structure. In terms of inventory management, companies only need to stock standardized tube bodies and various styles of face ring bodies, rather than the traditional model of "one integrated downlight corresponding to one inventory unit," significantly reducing the number of inventory SKUs and lowering the risk of inventory backlog and warehousing management costs.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A front perspective view of a first embodiment of the downlight structure provided by this utility model;

[0024] Figure 2 A three-dimensional rear view of a first embodiment of the downlight structure provided by this utility model;

[0025] Figure 3 A cross-sectional schematic diagram of a first embodiment of the downlight structure provided by this utility model;

[0026] Figure 4 An exploded view of the first embodiment of the downlight structure provided by this utility model;

[0027] Figure 5 This is a schematic diagram of the face ring in Embodiment 2 of the downlight structure provided by this utility model;

[0028] Figure 6This is a schematic diagram of the surface ring in Embodiment 3 of the downlight structure provided by this utility model;

[0029] Figure 7 This is a schematic diagram of the face ring in Embodiment 4 of the downlight structure provided by this utility model. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0037] See Figures 1 to 7 The present invention discloses a specific embodiment of a downlight structure, including: a cylindrical body 10 and a surface ring 20 detachably connected to the cylindrical body 10. The cylindrical body 10 is provided with COB lamp beads 30 and a lens element 40. The light emitted by the COB lamp beads 30 is reflected by the lens element 40 and then emitted along the surface ring 20.

[0038] Specifically, the cylinder 10 and the face ring 20 are connected in a detachable manner, such as through a snap-fit ​​structure, threaded connection, or magnetic connection. Taking the snap-fit ​​structure as an example, the end of the cylinder 10 is provided with a slot, and the inner edge of the face ring 20 is provided with a snap that matches the slot. During installation, align the snap of the face ring 20 with the slot of the cylinder 10 and press firmly to make the snap engage in the slot, thereby achieving a tight connection between the face ring 20 and the cylinder 10. During disassembly, simply pull the face ring 20 outward to disengage the snap from the slot, thus separating the face ring 20 from the cylinder 10. This connection method is simple, quick, and easy for users to operate themselves.

[0039] The cylindrical body 10 houses COB LED chips 30, which are integrated light-emitting diodes characterized by high brightness, high luminous efficiency, and long lifespan. A lens element 40 is mounted on the inner wall of the cylindrical body 10. The lens element 40 can be a convex lens, a concave lens, or a lens of other shapes, and its function is to reflect and focus the light emitted by the COB LED chips 30. The light emitted by the COB LED chips 30 first strikes the lens element 40, and after reflection and refraction by the lens element 40, the light is emitted along the direction of the ring body 20. The shape and material of the lens element 40 can be selected according to different lighting requirements to achieve different light distribution effects.

[0040] In other words, through the detachable connection between the face ring 20 and the cylinder 10 (such as snap-fit ​​connections, threaded connections, and other detachable structural forms), the face ring 20 becomes an independently replaceable component. Users do not need to replace the entire downlight; they only need to adjust the old face ring 20 and install the new one according to changes in interior decoration style (such as switching from modern industrial style to new Chinese style), scene function requirements (such as replacing the face ring with a colored one to create a festive atmosphere in a commercial space), or wear and tear on the face ring 20 (such as surface scratches or fading). This not only reduces the usage costs incurred by users in adapting to different appearances but also allows the same downlight to adapt to multiple scenes and styles, significantly improving the product's appearance flexibility and user experience, and solving the core pain point of traditional downlights: "fixed appearance and poor scene adaptability." Furthermore, for manufacturers, this structure enables a separate production model of "standardized production of the cylinder 10 + diversified design of the face ring 20". The cylinder 10, as a component integrating core functions such as the COB LED 30 and lens 40, can be mass-produced using a unified standard, reducing mold costs associated with designing multiple cylinder structures to accommodate different face rings. The face ring 20, on the other hand, can be quickly developed with different styles, colors, and materials (such as metal face rings, acrylic face rings, frosted face rings, etc.) according to market demand, without requiring simultaneous adjustments to the cylinder 10 structure. In terms of inventory management, companies only need to stock standardized cylinder 10 units and various styles of face ring 20 units, rather than the traditional model of "one integrated downlight corresponding to one inventory unit," significantly reducing the number of inventory SKUs and lowering the risk of inventory backlog and warehousing management costs. Meanwhile, when market demand for a certain type of face ring 20 surges, companies can quickly adjust the production rhythm of face ring 20 without redesigning or adjusting the cylinder 10 production line, which significantly improves the response speed to dynamic market demand and solves the problems of "many molds, high inventory pressure, and slow iteration" in traditional downlight production.

[0041] See Figures 1 to 4 As shown, in one embodiment, the cylindrical body 10 is composed of a cylindrical cover 11 and a heat sink 12, the heat sink 12 being connected to the top of the cylindrical cover 11, and the COB lamp bead 30 and the lens element 40 being connected to the heat sink 12.

[0042] Specifically, the cap 11 is typically made of metal, such as aluminum alloy, to ensure structural stability and durability. The radiator 12 is also made of metal, such as aluminum alloy or copper alloy, to improve heat dissipation efficiency. The radiator 12 can be connected to the top of the cap 11 by means of threads, snaps, or welding. For example, the bottom of the radiator 12 can be threaded to match the internal threads on the top of the cap 11, and the radiator 12 can be fixed to the cap 11 by rotating it.

[0043] The COB LED beads 30 are fixed to the surface of the heat sink 12 by welding or bonding, ensuring good thermal contact and effectively transferring heat to the heat sink 12. The lens 40 can be fixed to the heat sink 12 by snap-fit, thread, or bonding, ensuring its stable position and accurate reflection and focusing of light. For example, the edge of the lens 40 can be provided with snap-fit, matching the slot on the heat sink 12, and fixed to the heat sink 12 by pressing or rotating.

[0044] In other words, the heat sink 12 is connected to the top of the cover 11, and the COB LED 30 and lens 40 are connected to the heat sink 12. This structural design allows the heat generated by the COB LED 30 to be directly conducted to the heat sink 12, and then exchanged with the air through the surface of the heat sink 12, thus achieving efficient heat dissipation. For example, when using an aluminum alloy heat sink 12, its excellent thermal conductivity can quickly dissipate the heat generated by the COB LED 30, preventing the LED from reducing its luminous efficacy or shortening its lifespan due to overheating. This efficient heat dissipation design not only extends the lifespan of the COB LED 30 but also improves the overall performance and reliability of the downlight. Meanwhile, the cylinder 10 is composed of the cover 11 and the heat sink 12, with the heat sink 12 connected to the top of the cover 11. This structure makes the overall structure of the downlight more stable. The heat sink 12 not only serves a heat dissipation function but also enhances the mechanical strength of the cylinder 10. For example, the heat sink 12 can be securely connected to the cover 11 by threads or clips, ensuring that it will not loosen during use. This stable structural design allows the downlight to withstand certain external impacts, improving the product's durability.

[0045] See Figures 1 to 4 As shown, in one embodiment, the top of the heat sink 12 is also provided with a COB bracket 50, and the COB LED bead 30 is connected to the COB bracket 50.

[0046] Specifically, the COB bracket 50 is typically made of a material with good thermal conductivity, such as aluminum alloy or copper alloy. Its shape can be designed according to the size and shape of the COB LED bead 30 to ensure good contact and heat dissipation. For example, the COB bracket 50 can be a metal plate with grooves, the shape of which matches the shape of the COB LED bead 30, used to fix the COB LED bead 30. The COB bracket 50 can be fixed to the top of the heat sink 12 by screws, welding, or clips. Taking screw fixing as an example, the bottom of the COB bracket 50 has threaded holes, and the top of the heat sink 12 has corresponding threaded holes, allowing the COB bracket 50 to be firmly fixed to the heat sink 12 by screws.

[0047] The COB LED chip 30 is fixed to the COB bracket 50 by soldering or bonding. Soldering ensures good electrical and thermal connection between the COB LED chip 30 and the COB bracket 50. For example, conductive silver paste is used to connect the electrodes of the COB LED chip 30 to the electrodes on the COB bracket 50, while ensuring that the heat from the COB LED chip 30 is effectively conducted to the COB bracket 50. The power cord of the COB LED chip 30 can be connected to an external power source through the lead hole on the COB bracket 50 to ensure a stable power supply.

[0048] In other words, the COB bracket 50 further optimizes the heat dissipation path. The heat generated by the COB LED 30 is first conducted to the COB bracket 50, then through the COB bracket 50 to the heat sink 12, and finally exchanged with the air through the heat sink 12. This multi-stage heat dissipation structure significantly improves heat dissipation efficiency. For example, when using an aluminum alloy COB bracket 50, its excellent thermal conductivity can quickly conduct the heat generated by the COB LED 30 to the heat sink 12, preventing the LED from overheating and reducing its luminous efficacy or shortening its lifespan. This efficient heat dissipation design not only extends the lifespan of the COB LED 30 but also improves the overall performance and reliability of the downlight. Furthermore, the COB bracket 50 provides a stable support structure for the COB LED 30. By fixing the COB LED 30 to the COB bracket 50 and firmly connecting the COB bracket 50 to the heat sink 12, the COB LED 30 will not loosen due to vibration or external force during use. For example, the groove design of the COB bracket 50 ensures the precise position of the COB LED 30 and prevents it from shifting during operation. This stable structural design allows the downlight to maintain good performance in various usage environments.

[0049] See Figures 3 to 4 As shown, in one embodiment, the bottom of the heat sink 12 is further provided with a limiting groove 121, and the bottom of the lens 40 extends outward with an annular protrusion 41, which is adapted to the limiting groove 121.

[0050] Specifically, the bottom of the heat sink 12 is provided with a limiting groove 121, which is typically annular in shape, and its size and shape match the annular protrusion 41 at the bottom of the lens element 40. The limiting groove 121 can be a recess on the bottom surface of the heat sink 12, and its depth and width are designed according to the size of the annular protrusion 41. For example, the depth of the limiting groove 121 can be 1-3 mm, and the width can be 2-5 mm, to ensure that the annular protrusion 41 can be tightly embedded therein. The bottom of the lens element 40 extends outward with an annular protrusion 41, the shape and size of which match the limiting groove 121. The thickness and width of the annular protrusion 41 can be designed according to actual needs to ensure that it can be firmly embedded in the limiting groove 121. For example, the thickness of the annular protrusion 41 can be 1-2 mm, and the width can be 3-4 mm. The outer surface of the annular protrusion 41 can be designed to be smooth to reduce friction and facilitate installation and disassembly.

[0051] In other words, the design of the limiting groove 121 and the annular protrusion 41 ensures the stable fixation of the lens element 40 on the heat sink 12. After the annular protrusion 41 is embedded in the limiting groove 121, the lens element 40 will not loosen or shift due to vibration or external force. This stable fixing method allows the lens element 40 to maintain good optical performance during use, ensuring the reflection and focusing effect of light. For example, when the downlight is working, even with slight vibration, the lens element 40 will not shift, thus ensuring a stable lighting effect.

[0052] See Figures 3 to 4 As shown, in one embodiment, a sealing ring 60 is also provided between the lens 40 and the cap 11.

[0053] Specifically, the sealing ring 60 is typically made of materials with good elasticity and weather resistance, such as silicone rubber, nitrile rubber, or EPDM rubber. These materials not only have good waterproof performance but also maintain elasticity within a certain temperature range, ensuring the stability of the sealing effect. The sealing ring 60 is generally annular in shape, and its size is designed according to the gap between the cap 11 and the lens 40 to ensure a tight fit. Furthermore, the sealing ring 60 is installed between the lens 40 and the cap 11, and its specific position can be designed according to the overall structure of the downlight. For example, an annular groove can be provided on the top of the cap 11, and the sealing ring 60 can be embedded in this groove. This ensures that the sealing ring 60 can fit tightly between the lens 40 and the cap 11 after installation, forming a good sealing effect.

[0054] In other words, the sealing ring 60 significantly improves the downlight's waterproof performance. By placing the sealing ring 60 between the lens 40 and the cover 11, moisture can be effectively prevented from entering the downlight, protecting the internal electronic and optical components from the effects of a humid environment. For example, in humid environments or when used outdoors, the sealing ring 60 can prevent rainwater and water vapor from entering the downlight, extending its lifespan and improving its reliability. Simultaneously, the elastic properties of the sealing ring 60 allow it to maintain a good seal under certain temperature and pressure changes. Even during long-term use, the sealing ring 60 retains its elasticity and will not lose its sealing performance due to aging or deformation. This reliable sealing design ensures the downlight maintains good waterproof performance in various environments, reducing malfunctions caused by poor sealing.

[0055] See Figures 2 to 4 As shown, in one embodiment, the outer side of the cylinder cover 11 is provided with a snap-fit ​​protrusion 111, and the face ring 20 is provided with a snap-fit ​​groove 21 corresponding to the snap-fit ​​protrusion 111.

[0056] Specifically, the outer side of the cap 11 is provided with snap-fit ​​protrusions 111. These snap-fit ​​protrusions 111 are typically made of elastic plastic or metal and designed in a hook-like or tongue-like structure to facilitate engagement and disengagement. The number and distribution of the snap-fit ​​protrusions 111 can be adjusted according to the size and shape of the cap 11 to ensure sufficient fixing force. The face ring 20 is provided with engaging grooves 21 corresponding to the snap-fit ​​protrusions 111. The shape and size of the engaging grooves 21 match the snap-fit ​​protrusions 111, and are typically grooves or holes. The position and number of engaging grooves 21 are also adjusted according to the design of the face ring 20 to ensure accurate alignment with the snap-fit ​​protrusions 111.

[0057] In other words, the design of the snap-fit ​​protrusion 111 and the snap-fit ​​groove 21 makes the installation and removal of the face ring 20 very convenient and quick. Users do not need to use complicated tools or perform cumbersome operations; they can complete the installation and removal of the face ring 20 simply by pressing or rotating. This design greatly improves the user experience and reduces maintenance costs. Furthermore, the tight fit between the snap-fit ​​protrusion 111 and the snap-fit ​​groove 21 ensures the stability of the face ring 20 after installation. The elastic design of the snap-fit ​​protrusion 111 allows it to be firmly locked in the snap-fit ​​groove 21 after installation, preventing the face ring 20 from loosening due to vibration or external force. This stable fixing method allows the downlight to maintain a good appearance and performance during use.

[0058] See Figure 3 As shown, in one embodiment, the distance between the lower surface of the lens 40 and the lower surface of the face ring 20 is 25mm-35mm.

[0059] Specifically, a depth step is formed between the lower surface of the lens element 40 and the lower surface of the ring body 20. The height of this depth step ranges from 25mm to 35mm, providing an anti-glare effect. When light is emitted from the lens element 40, the depth step effectively blocks strong light directly hitting the eyes, reducing glare. For example, within a depth range of 25mm-35mm, light undergoes multiple reflections and scattering at the step, making the light softer and less glaring. This design is particularly suitable for environments requiring prolonged lighting, such as offices, classrooms, or family living rooms, effectively protecting the user's eyes and reducing visual fatigue.

[0060] See Figure 4 As shown, in one embodiment, the top of the heat sink 12 is also provided with an end cover 70 and a male terminal wire 80. One end of the male terminal wire 80 passes through the end cover 70 and is electrically connected to the COB LED bead 30, and the other end is connected to an external power supply box.

[0061] Specifically, the top of the heat sink 12 is provided with an end cap 70, which is typically made of plastic or metal and is fixed to the heat sink 12 by means of threads, clips, or screws. For example, the inner side of the end cap 70 has threads that match the external threads on the top of the heat sink 12, and the end cap 70 is rotated to securely fix it to the heat sink 12. The design of the end cap 70 not only protects the internal components but also serves as a fixing and protection structure for the male terminal wire 80. Meanwhile, one end of the male terminal wire 80 passes through the end cap 70 and is electrically connected to the COB LED bead 30, while the other end connects to the external power supply box. The male terminal wire 80 is typically made of a material with good conductivity, such as copper or copper alloy, and is covered with an insulating layer for safety. One end of the male terminal wire 80 is connected to the electrode of the COB LED bead 30 by welding or crimping to ensure a good electrical connection, while the other end is connected to the external power supply box via a plug or terminal block to provide a stable power supply to the downlight.

[0062] In other words, by directly connecting one end of the male terminal wire 80 to the COB LED bead 30 and the other end to the external power supply box, this design ensures a stable power supply for the downlight. Soldering or crimping provides a good electrical connection, reduces contact resistance, and improves the efficiency of power transmission. This stable electrical connection effectively avoids flickering or extinguishing of the light due to poor contact, thus improving the reliability and lifespan of the downlight.

[0063] In one embodiment, both the cylinder cover 11 and the radiator 12 are made of aluminum alloy.

[0064] Specifically, both the cap 11 and the radiator 12 are made of aluminum alloy. Aluminum alloy has good thermal conductivity, mechanical strength, and corrosion resistance, making it an ideal material choice. Common aluminum alloy grades include 6063 and 6061, which have good machinability and mechanical properties, making them suitable for manufacturing the cap 11 and radiator 12 of the downlight.

[0065] In one embodiment, the lens 40 is horn-shaped and transparent.

[0066] Specifically, the trumpet-shaped lens 40 effectively optimizes light distribution. Because its shape gradually widens from top to bottom, light is evenly diffused as it passes through the lens 40, creating a wider illumination area. This design is particularly suitable for places requiring uniform lighting, such as offices, classrooms, or living rooms, providing softer, more even light and reducing shadows and glare. Furthermore, the high transmittance of the transparent material ensures efficient light transmission; transparent plastics or glass can achieve transmittance of over 90%, meaning that most light can pass through the lens 40, reducing light energy loss. This efficient light transmission not only improves lighting efficiency but also reduces energy consumption. In addition, the trumpet-shaped lens 40 design effectively reduces glare. Because light is evenly diffused within the lens 40, the amount of strong light directly hitting the eyes is reduced, thus reducing glare. This design is particularly suitable for environments requiring prolonged lighting, such as offices or living rooms, effectively protecting the user's eyes and reducing visual fatigue.

[0067] In one embodiment, spring clips are also provided on both sides of the radiator 12.

[0068] Specifically, spring clips are typically made of elastic metal materials, such as spring steel or stainless steel, to ensure they maintain good elasticity and corrosion resistance during long-term use. The shape of the spring clip can be designed according to the specific requirements of the radiator 12 and the installation location; common shapes are "U" or "L". For example, a "U" shaped spring clip can be designed with bent hooks at both ends for better fixation to both sides of the radiator 12.

[0069] In other words, the spring clip design makes the installation and removal of the bulb 10 very convenient and quick. Users do not need complex tools or cumbersome operations; they can install and remove the bulb 10 simply by pressing or prying. This design greatly improves the user experience and reduces maintenance costs. For example, when it is necessary to replace the bulb 10 or perform repairs, users can easily disassemble the bulb 10 to perform the necessary operations. Furthermore, the elasticity of the spring clip ensures the stability of the bulb 10 after installation. The hooks or curved parts of the spring clip can firmly hold the edge of the bulb 10, preventing it from loosening due to vibration or external force. This stable fixing method allows the downlight to maintain good performance during use and reduces malfunctions caused by loosening. For example, when used in home or commercial environments, the spring clip can effectively prevent the bulb 10 from falling off due to external impact.

[0070] See Figures 4 to 7 As shown, where, Figure 4 In Example 1, the face ring 20 is a circular face ring with a border, and it is installed using an embedded method; Figure 5 In Example 2, the face ring 20 is a square face ring with a frame, and it is installed using an embedded method; Figure 6 In Example 3, the face ring 20 is a circular frameless face ring, which is installed using a pre-embedded method; Figure 7 In Example 4, the face ring 20 is a square frameless face ring, which is installed using a pre-embedded method.

[0071] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A downlight structure, characterized in that, include: A cylindrical body and a detachable ring body connected to the cylindrical body. The cylindrical body is equipped with COB lamp beads and a lens. The light emitted by the COB lamp beads is reflected by the lens and then emitted along the ring body. The cylindrical body consists of a cap and a heat sink. The heat sink is connected to the top of the cap, and the COB LED and the lens are connected to the heat sink. The bottom of the heat sink is also provided with a limiting groove, and the bottom of the lens extends outward with an annular protrusion that fits into the limiting groove. The distance between the lower surface of the lens and the lower surface of the ring body is 25mm-35mm.

2. The downlight structure according to claim 1, characterized in that, The top of the radiator is also provided with a COB bracket, and the COB LED beads are connected to the COB bracket.

3. The downlight structure according to claim 1, characterized in that, A sealing ring is also provided between the lens element and the cylinder cover.

4. The downlight structure according to claim 1, characterized in that, The outer side of the cylinder cover is provided with a buckle protrusion, and the face ring is provided with a snap-fit ​​groove corresponding to the buckle protrusion.

5. The downlight structure according to claim 1, characterized in that, The top of the heat sink is also provided with an end cover and a male terminal wire. One end of the male terminal wire passes through the end cover and is electrically connected to the COB LED, and the other end is connected to an external power supply box.

6. The downlight structure according to claim 1, characterized in that, Both the cylinder cover and the radiator are made of aluminum alloy.

7. The downlight structure according to claim 1, characterized in that, The lens is horn-shaped and transparent.

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