LED lamp

Abstract

The LED lamp is characterized in that the LED lamp comprises a base, the base comprises at least one heat dissipation part, and the heat dissipation part comprises a plurality of heat dissipation fins; the light source part is arranged on the base, the light source part comprises a light source plate and a plurality of LED lamp beads arranged on the light source plate, and the heat dissipation fins are perpendicular to the light source plate; at least one end of the heat dissipation part is fixed with the power supply part, and the other opposite end of the heat dissipation part is fixed with the base; the light source part and the power supply part are mutually spaced, the power supply part is connected with the heat dissipation parts and arranged on the periphery of the power supply part, the heat dissipation parts are mutually spaced, and a vertically-through heat dissipation channel is formed between the light source part and the power supply part; the lampshade is connected with the base, and the light source part is arranged between the lampshade and the base; the lampshade protrudes in the light emitting direction of the LED lamp beads to form a convex lens, and a concave cavity is formed in the side, facing the lamp panel, of the lampshade.

Description

[0001] This application is a divisional application of the application filed on November 7, 2023, with application number "2023230024226" and entitled "An LED Lighting Fixture". Technical Field

[0002] This application relates to the field of lighting technology, and in particular to an LED luminaire. Background Technology

[0003] LED lights are widely used due to their ease of installation and maintenance, energy efficiency, high brightness, and small size.

[0004] Widely used in various places, its core component is the light-emitting diode (LED).

[0005] LEDs, as a new generation of solid-state energy, have advantages such as long lifespan, high efficiency and energy saving, and green environmental protection.

[0006] Existing LED high bay lights generally consist of a lamp body and an LED light source. LED high bay lights

[0007] The main difference between LED high bay lights and household LED lights is that the power of LED high bay lights is much greater than that of household LED lights.

[0008] Lights. The former typically has a power rating of 50W to 200W, while ordinary household LED lights generally have a power rating of less than 200W.

[0009] Greater than 20W. The two also differ significantly in structure. High bay lights typically require excellent heat dissipation.

[0010] and light output performance.

[0011] Existing LED lighting fixtures generally consist of a fixture body and an HID light source. The HID light source's diffusion...

[0012] Heat sinks are typically manufactured using aluminum die casting. However, this die casting process results in a larger heat sink size.

[0013] Problems include large size, heavy weight, and uneven thickness of the heat sink.

[0014] Heat sinks are used to quickly dissipate the heat generated by LED lights during operation, preventing the LED lights from absorbing heat.

[0015] Internal heat buildup can affect normal operation, and heat sinks typically add extra space to or occupy space in the lighting fixture.

[0016] The size of the lamps has a certain impact on their packaging and transportation.

[0017] In existing LED lighting designs, the light emission direction can only be fixed at a certain angle, which is problematic in various environments.

[0018] When changes are made (e.g., changes in installation height or angle), the original LED lights cannot...

[0019] Or it may not fully meet the current installation environment, and the adaptability of LED lighting fixtures may not meet customer needs.

[0020] In existing designs, lampshades are generally planar structures, which to some extent limits the light emission angle or uniformity of the lamp.

[0021] The uniformity cannot meet the requirements.

[0022] In summary, given the shortcomings and defects of existing LED lighting technologies, how to design...

[0023] Improving material utilization and reducing weight are urgent challenges for LED lighting fixtures.

[0024] Technical problems solved by domain technicians. Utility Model Content

[0025] This application proposes an LED lamp that, compared with the prior art, is lighter, has better heat dissipation, is easier to assemble, and is smaller in size. Other objectives, effects, and beneficial effects of this application can be derived from the specific embodiments.

[0026] This abstract describes many embodiments of this application. However, the terminology used herein is only used to describe certain embodiments disclosed in this specification (whether or not they are included in the claims), and not a complete description of all possible embodiments. Some embodiments of the various features or aspects of this application described above may be combined in different ways to form an LED luminaire or a part thereof.

[0027] This application provides an LED lamp, characterized in that it includes: a base, the base including at least one heat dissipation part, the heat dissipation part including a plurality of heat dissipation fins;

[0028] The light source unit is disposed on the base, and the light source unit includes a light source board and a plurality of LED beads disposed on the light source board. The heat dissipation fins are perpendicular to the light source board.

[0029] The power supply unit has at least one end of the heat dissipation unit fixed to the power supply unit and the opposite end fixed to the base.

[0030] The light source and the power supply are spaced apart from each other. The power supply is connected to the heat dissipation unit and disposed on the outer periphery of the power supply unit. The heat dissipation units are spaced apart from each other and form a vertically penetrating heat dissipation channel between the light source and the power supply unit.

[0031] A lampshade is connected to the base, and the light source is disposed between the lampshade and the base; the lampshade protrudes along the light emission direction of the LED beads to form a convex lens, and the side of the lampshade facing the lamp board is a concave cavity.

[0032] In one embodiment of this application, a hanging support assembly is further included, wherein the power supply unit includes a mounting hole, and the hanging support assembly includes a threaded portion, the threaded portion being accommodated in the mounting hole.

[0033] In one embodiment of this application, the heat dissipation part is provided with a locking part, and the light source part is disposed on the base through the locking part.

[0034] In one embodiment of this application, the light source is a hollow annular plate, the light source is completely exposed above the power supply, and the overlapping area of ​​the projections of the light source and the power supply in the light emission direction of the LED lamp is zero.

[0035] In one embodiment of this application, the heat dissipation channel extends along the optical axis of the LED lamp, the surface of the heat dissipation fins is parallel to the optical axis of the LED lamp, and the heat dissipation channel is parallel to the heat dissipation fins.

[0036] In one embodiment of this application, the lampshade is provided with a plurality of lampshade screw holes, and the base is provided with a plurality of base screw holes. The lampshade is connected to the base by passing through the lampshade screw holes and the base screw holes with a plurality of screws.

[0037] In one embodiment of this application, the projections of the light source and the heat dissipation unit in the light emission direction of the LED lamp are spaced apart from and surround the power supply unit.

[0038] In one embodiment of this application, the outer contour of the base is a circular ring structure, and the heat dissipation part is evenly distributed along the radial direction of the ring.

[0039] In one embodiment of this application, a receiving portion and a sensor are further included. The receiving portion is connected to the base by snap-fit ​​or threaded connection. The power supply portion is housed within the receiving portion, and the sensor is disposed at the bottom of the receiving portion.

[0040] In one embodiment of this application, the height ratio between the receiving portion and the base is 0.5 to 1.

[0041] According to the technical solution of this application, the LED lamp base is made of stamped metal sheet, which is lighter and has better heat dissipation than a die-cast base. The hollowed-out design of the base and lampshade enhances heat dissipation. The strip-shaped protrusions on the base and the lens structure of the lampshade both help adjust the light output of the LED lamp. The power supply section can be provided with recessed mounting holes, which helps to reduce the height of the lamp. Attached Figure Description

[0042] For illustrative and not limiting purposes, this application will now be described with reference to preferred embodiments, and in particular with reference to the accompanying drawings, in which:

[0043] Figure 1A and Figure 1B This is an exploded view of the main components of an LED lamp according to one embodiment of this application;

[0044] Figure 2 is a schematic diagram of a lampshade forming a lens in one embodiment of this application;

[0045] Figure 2A This is a schematic diagram of a lampshade according to one embodiment of this application;

[0046] Figure 2B yes Figure 2A Cross-sectional view along the AA direction;

[0047] Figure 2C yes Figure 2B Enlarged view of point B;

[0048] Figure 3 This is a schematic diagram of the upward viewing angle of an LED lamp in one embodiment of this application;

[0049] Figure 4 This is an overall schematic diagram of an LED lamp from one perspective in one embodiment of this application;

[0050] Figure 5 This is an overall schematic diagram of an LED lamp from another perspective in one embodiment of this application;

[0051] Figure 6 This is a schematic diagram of the combined state of the power supply unit and the hanging support assembly in one embodiment of this application;

[0052] Figure 7 This is a schematic diagram of the power supply unit and the mounting bracket assembly in disassembled state according to one embodiment of this application;

[0053] Figure 8 This is a schematic diagram showing the hanging support assembly disassembled separately from the LED lamp in one embodiment of this application;

[0054] Figure 9 This is a radial cross-sectional view of the front side of an LED lamp according to one embodiment of this application;

[0055] Figure 10 This is a cross-sectional view of the reverse side of an LED lamp in one embodiment of this application along the radial direction;

[0056] Figure 11A This is a structural schematic diagram of an LED lamp according to an embodiment of this application;

[0057] Figure 11BThis is a schematic diagram of airflow in an LED lamp according to an embodiment of this application;

[0058] Figure 12 This is an exploded view of the structure of the LED lamp according to an embodiment of this application;

[0059] Figure 13A This is a schematic diagram of the structure of the base according to an embodiment of this application;

[0060] Figure 13B This is another schematic diagram of the base according to an embodiment of this application;

[0061] Figure 14 This is a schematic diagram of the structure of the lampshade according to an embodiment of this application;

[0062] Figure 15A This is a schematic diagram of the cover plate according to an embodiment of this application;

[0063] Figure 15B This is a schematic diagram of the second snap-fit ​​structure on the cover plate according to an embodiment of this application;

[0064] Figure 16 This is a schematic diagram of another lampshade structure according to an embodiment of this application;

[0065] Figure 17 yes Figure 16 An enlarged view of point A in the diagram;

[0066] Figure 18 This is a schematic diagram of the structure of the fastener according to an embodiment of this application;

[0067] Figure 19A This is a schematic diagram of the light pattern according to an embodiment of this application;

[0068] Figure 19B This is a schematic diagram of the light effect of an embodiment of this application;

[0069] Figure 20A This is a schematic diagram of the light pattern of another embodiment of this application;

[0070] Figure 20B This is a schematic diagram of the light effect of another embodiment of this application;

[0071] In the diagram: 100, LED lamp fixture; 1, base; 11, base screw hole; 12, strip-shaped protrusion; 121, hollowed-out seam; 13, mounting hole; 14, side wall; 15, base plate; 151, first hollowed-out hole; 152, first slot; 153, second slot; 1531, insertion part; 1532, fastening part; 16, heat dissipation part; 2, light source part; 20, lamp board; 21, LED light strip; 201, fastener; 202, first sealing ring; 211, LED light source; 3, lampshade; 31, lampshade screw hole; 32, hollowed-out block; 310, first buckle; 320, positioning post; 330, stop part; 331, first protruding surface; 332, second protruding surface; 301, outermost ring of lampshade; 302, middle ring of lampshade; 303, innermost ring of lampshade; 313, protruding... 340. Annular protrusion; 3401. Protrusion section; 350. Light-effect surface; 360. Light-effect surface; 370. Second sealing ring; 4. Power supply unit; 40. Power module; 41. Limiting hole; 410. Housing; 411. Adjustment switch; 412. Wireless control device; 42. Heat dissipation channel; 420. Cover plate; 421. Second buckle; 4211. Extension; 4212. Bending part; 422. Positioning hole; 423. Second hollow hole; 5. Insulation box; 6. Receiving part; 61. Groove; 62. Tongue; 63. Central column; 631. First end of central column; 632. Second end of central column; 7. Protective coil; 8. Photosensor; 9. Hanging support assembly; 91. Threaded part; 92. Suspension part; 93. Locking fastener; 94. Movable closure; 95. Limiting through hole. Detailed Implementation

[0072] To facilitate understanding of this application, a more comprehensive description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described below. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. Terms such as "axial direction," "above," and "below" in the following description are used to more clearly indicate structural positional relationships and are not intended to limit this application. In this application, "vertical," "horizontal," and "parallel" are defined as including cases within ±10% of the standard definition. For example, vertical usually refers to an angle of 90 degrees relative to a baseline, but in this application, vertical refers to cases including those within 80 to 100 degrees.

[0073] The embodiments of this application are described below with reference to the accompanying drawings. Figure 1A and Figure 1B This is an exploded view of the main components of the LED lighting fixture according to an embodiment of this application. Among them, Figure 1A From a bird's-eye view, Figure 1B This is a downward-looking perspective. For example... Figure 1A and Figure 1B As shown, the LED lamp 100 in this embodiment mainly includes a base 1, a light source 2, a lampshade 3, a power supply 4, an insulating box 5, and a housing 6 from top to bottom (the top and bottom are as shown in the figure, the same below). In addition, a protective coil 7 is provided on the base 1.

[0074] The light source unit 2 is mounted on the base 1. The light source unit 2 mainly consists of one or more LED light strips 21. Each LED light strip 21 has multiple LED light emitters 211, which can be LED beads or other packaged structures with LED chips. The LED light strip 21 can be ring-shaped or approximately ring-shaped. The ring formed by multiple LED light strips 21 can be a concentric ring. The ring of the LED light strip 21 may include one or more breaks, meaning the LED light strip 21 can also be arc-shaped or approximately arc-shaped. Multiple arc-shaped LED light strips 21 can form a ring. The breaks in the LED light strips 21 on multiple rings can be located at the same radius of the concentric rings, allowing the LED light strips 21 on different rings to be electrically connected at the breaks.

[0075] On the base 1, different circular LED light strips 21 can have the same curvature but different arc lengths. In other words, the lengths of the LED light strips 21 on different rings can be inconsistent; that is, the length of the LED light strip 21 on the ring closer to the center of the LED light fixture is shorter than the length of the LED light strip 21 on the ring closer to the edge of the LED light fixture. Alternatively, the length of the LED light strip 21 on the inner ring is shorter than the length of the LED light strip 21 on the outer ring. This discontinuous design of the LED light strips 21 reduces manufacturing costs.

[0076] In one embodiment, as shown in the figure, there are 12 arc-shaped LED strips that form three concentric rings, each of which is broken in four places.

[0077] In one specific embodiment, the base 1 is basin-shaped. The figure shows a case where a circular base plate 15 is used. That is, the base 1 includes a base plate 15 and a side wall 14 surrounding the base plate 15. The side wall 14 forms an accommodating space around the base plate 15, and the light source unit 2 is disposed within this accommodating space. The base 1 can be integrally stamped from a metal plate, such as an aluminum plate. When the LED strip 21 is directly attached to the base 1, using a metal plate provides good heat dissipation performance, and the integral structure helps reduce processes, thereby lowering costs. Integral stamping ensures uniform thickness of the base 1, preventing material waste.

[0078] With the LED lamp 100 assembled, multiple screws pass through the breaks in the concentric rings described above. These screws pass through multiple base screw holes 11 shown in the figure and multiple lampshade screw holes 31 on the lampshade 3, thereby connecting the lampshade 3 to the base 1 and clamping the light source 2 between them. As shown in the figure, the multiple breaks are located on the same straight line, forming a radially radiating passage from the center of the base plate 15 of the base 1, which facilitates air convection and improves heat dissipation. In addition, since the breaks provide the connection points between the lampshade 3 and the base 1, the fact that the breaks are on the same straight line also facilitates the design of the lampshade 3 and enhances the aesthetics of the LED lamp 100.

[0079] In other embodiments, the lampshade 3 and the base 1 may not have any screw holes, and the two can be connected by adhesive bonding, thereby enabling the LED lamp 100 to have better waterproof performance. The bonding location can be at the edge of the lampshade 3. Alternatively, adhesive / material can be filled at the break in the concentric rings mentioned above to achieve the bonding effect.

[0080] The base plate 15 of the base 1 has multiple strip-shaped protrusions 12, specifically, the strip-shaped protrusions 12 protrude towards the light emission direction of the LED lamp. The strip-shaped protrusions 12 increase the heat dissipation area, and their ridges have hollowed-out slots 121, which further aids in heat dissipation. The LED light strip 21 is located to the side of the strip-shaped protrusions 12. Because the base 1 is made of metal plate, and the strip-shaped protrusions 12 protrude towards the lampshade 3, the strip-shaped protrusions 12 can reflect the light emitted by the LED light strip 21 obliquely downward, which helps to enhance the light emission. Of course, in some embodiments, the strip-shaped protrusions 12 can also protrude in the opposite direction to the lampshade 3.

[0081] As mentioned earlier, multiple LED light strips 21 form two or more concentric rings. The aforementioned strip-shaped protrusions 12 can be located between the LED light strips 21 in adjacent rings, so that one strip-shaped protrusion can reflect the light emitted by two LED light strips 21. In this embodiment, multiple LED light strips 21 form three concentric rings, and multiple strip-shaped protrusions 12 form two concentric rings. That is, multiple LED light strips 21 and adjacent strip-shaped protrusions 12 are arranged concentrically, and the LED light strips 21 are simultaneously arranged parallel to each other with the adjacent strip-shaped protrusions 12.

[0082] In addition, the strip-shaped protrusions 12 can also be arc-shaped, with multiple strip-shaped protrusions 12 forming multiple concentric rings. The strip-shaped protrusions 12 on the same ring are spaced apart, and further share a common center with the concentric rings formed by the LED light strip 21. This arrangement not only makes the structure of each component compact, helping to reduce the overall size of the lamp, but also allows the strip-shaped protrusions 12 to more tightly surround the LED light strip 21, thereby providing better light reflection for the light emitted from the LED light strip 21. The multiple gaps between the multiple strip-shaped protrusions 12 are also radially distributed from the center of the base plate 15, which is beneficial for heat dissipation. Simultaneously, the LED light strip 21 is also radially distributed from the center (circumference) of the LED lamp fixture to its outer periphery (edge).

[0083] The strip-shaped protrusions 12 on different rings can have the same curvature; in other words, the number of strip-shaped protrusions 12 on different rings can be the same. That is, the length of the strip-shaped protrusions 12 on different rings can be inconsistent; specifically, the length of the strip-shaped protrusions 12 on the ring closer to the center of the LED light fixture is shorter than the length of the strip-shaped protrusions 12 on the ring closer to the edge of the LED light fixture. Alternatively, it can be said that the length of the strip-shaped protrusions 12 on the inner ring is shorter than the length of the strip-shaped protrusions 12 on the outer ring. This allows the LED light fixture to form multiple convection paths.

[0084] In other embodiments, the strip protrusions 12 on different rings may also have different curvatures, that is, the number of strip protrusions 12 on different rings may be different. In one embodiment, the number of strip protrusions 12 on the inner ring is less than the number of strip protrusions 12 on the outer ring, thereby reducing the number of strip protrusions 12 on the base 1 while ensuring the strength of the base 1, thereby increasing the reflective area of ​​the strip protrusions 12 on the LED light strip.

[0085] In this embodiment, the inner ring includes two strip-shaped protrusions 12, and the outer ring includes four strip-shaped protrusions 12.

[0086] Furthermore, the length relationship between each strip protrusion 12 and the LED light strip 21 can be flexibly set. For example, for a concentric ring formed by multiple strip protrusions 12 and multiple LED light strips 21, the length of the outermost LED light strip 21 can be greater than the length of the outermost strip protrusion 12, the length of the innermost strip protrusion 12 can be greater than the length of the outermost strip protrusion, or the length of the innermost strip protrusion 12 can be greater than the length of the innermost LED light strip 21.

[0087] The height of each strip-shaped protrusion 12 is preferably within a suitable range. If it is too high, it will affect the light output of the LED strip 21; if it is too low, it will affect heat dissipation and reflective effect. The ratio of the height of each strip-shaped protrusion 12 to the vertical height of the side wall 14 of the base 1 (or can be understood as the overall thickness of the base 1) is 0.1 to 0.4; preferably, the ratio is 0.15 to 0.35; more preferably, the ratio is 0.2 to 0.3. In other words, the base plate 15 of the base 1 includes at least two surfaces at different heights.

[0088] The power supply unit 4 is housed within the insulating box 5, and both are placed within the receiving portion 6. In other words, the receiving portion 6 has a space for housing the insulating box 5 and the power supply unit 4. The insulating box 5 can be made of Mylar sheet. The receiving portion 6 can be connected to the base 1 via snap-fit ​​or threaded connection. The height of the receiving portion 6 (or the overall thickness of the receiving portion 6) depends primarily on the size of the contents (electronic components or electronic parts) of the power supply 4, and should not be too large. In this embodiment, the height of the receiving portion 6 is not greater than the height of the side wall 14 of the base 1 (or the overall thickness of the base 1), to prevent the power supply unit 4 from protruding from the base 1. The height ratio of the receiving portion 6 to the base 1 can be selected as 0.5 to 1; preferably, the height ratio of the receiving portion 6 to the base 1 can be selected as 0.6 to 1. More preferably, the height ratio of the receiving portion 6 to the base 1 can be selected as 0.75 to 1. Because the receiving portion 6 is located inside the base 1, the overall height of the lamp is reduced compared to the method where the power supply unit is located outside the base.

[0089] The housing 6 can be made of a reflective material, or have a reflective coating, such as white paint, or be covered with a reflective layer. This allows the light emitted toward the housing 6 to change its emission angle through the reflection of the surface of the housing 6, thereby reducing the central dark area of ​​the LED light fixture.

[0090] The ratio of the area of ​​the cross-section of the accommodating portion 6 parallel to the base plate 15 to the area of ​​the base plate 15 of the base 1 can be 0.035 to 0.15; preferably, the ratio can be 0.035 to 0.1; more preferably, the ratio can be 0.035 to 0.07. Using this range of values ​​for the accommodating portion 6 helps avoid the formation of a significant central dark area in the light-emitting range. If the area occupied by the cross-section of the accommodating portion 6 is too large, the aforementioned central dark area is likely to occur. Furthermore, LED light-emitting elements can be provided on the sides and / or bottom of the accommodating portion 6 to reduce the central dark area.

[0091] See Figure 1AThe outer wall of the receiving portion 6 is provided with a plurality of grooves 61, and the upper edge corresponding to the grooves 61 is provided with a plurality of tongues 62, the width of which is close to that of the grooves 61, extending away from the outer wall. The tongues 62 allow the receiving portion 6 to be connected and fixed to the base 1. Specifically, the tongue 62 may include a connecting hole, through which screws or other fixing components can pass to connect and fix the receiving portion 6 to the base 1. In other embodiments, the tongue 62 may also be used to connect and fix the receiving portion 6 to the base 1 by means of glue or other methods.

[0092] See Figure 1A The accommodating portion 6 has a central post 63 perpendicular to its bottom. The central post 63 allows the power supply box 4 to be connected and fixed to a mounting component, such as the mounting hole 13 on the base plate 15, enabling the power supply box 4 to be assembled and fixed to the base 1. Specifically, the central post 63 has internal threads, allowing it to be connected and fixed to the mounting component. Further, the central post 63 may include a first end 631, which is connected and fixed to the mounting component. The central post 63 may also include a second end 632. See also... Figure 1B The second end 632 of the central column is located at the bottom of the receiving part 6 and can be used to connect components such as sensors. The base plate 15 has a mounting hole 13 at its center, which has an internal thread, allowing a screw to pass through and reach the first end 631 of the central column near the base plate 15. A lifting ring or hook can be provided on the screw. Mounting holes can also be provided at other locations on the base plate 15 to connect mounting brackets. The aforementioned lifting rings, hooks, or mounting brackets are used to fix the entire lamp to the roof, wall, or other support. See also... Figure 1B The second end 632 of the central column is located at the bottom of the receiving part 6 and can be used to connect components such as sensors. Figure 3 As shown, Figure 3 This is a schematic diagram of the external shape of the LED lamp according to the embodiments of this application. Figure 3 The image shows a downward angle, in which a sensor 8 is connected to the center of the bottom of the accommodating part 6.

[0093] The main function of the lampshade 3 in this embodiment is to hold the light source 2, that is, to cover the LED light-emitting element 211 of the light source 2, completely covering the LED light-emitting element 211. Therefore, in order to improve heat dissipation, multiple hollow blocks 32 are formed on the parts of the lampshade 3 that do not contact the light source 2, which also saves materials. Because the lampshade 3 is made of a light-transmitting material, such as glass, resin, acrylic, plastic, etc., in one embodiment of this application, it can be a transparent material. Therefore, in this embodiment, the lower surface of the lampshade 3 is made into a protruding shape to form a lens. Figure 2A , Figure 2B , Figure 2C As shown, Figure 2A This is a schematic diagram of the lampshade in the embodiment of this application. Figure 2B yes Figure 2A AA-direction cross section, Figure 2C yes Figure 2B A magnified view of point B. From Figure 2B and Figure 2C As can be seen, the lampshade 3 has a first protruding surface 331 and a second protruding surface 332, thus forming a convex lens. The light emitted by the LED light-emitting body 211 is refracted by the convex lens and diffused to both sides, i.e., light diffusion effect. By selecting the curvature of the first protruding surface 331 and the second protruding surface 332, various light emission angles of the entire lamp can be achieved, such as 120°, 90°, 60°, etc.

[0094] See Figure 2A The portion of the lampshade 3 that contacts the light source 2 is also concentrically circular, and the lampshade 3 may include one or more rings. The number of rings of the lampshade 3 may be the same as the number of rings of the light source 2, so that each ring of the lampshade 3 covers each ring of the light source 2. In this embodiment, the lampshade 3 includes 3 rings. The figure shows the outermost ring 301, the middle ring 302, and the innermost ring 303 of the lampshade 3. The innermost ring 303 has multiple protrusions 313 extending towards the center circumferentially distributed. The protrusions 313 allow the electrical structure of the wires to pass through, thereby enabling the light source 2 and the power supply 4 to be electrically connected. The multiple protrusions 313 correspond to the positions of the tongues 62 of the multiple receiving portions 6, so that the receiving portions 6 press... Figure 1A or Figure 1B When the viewing angle penetrates the lampshade 3 from top to bottom, each protrusion 313 passes through each groove 61 and contacts the multiple tongues 62. In this way, the multiple tongues 62 are clamped between each protrusion 313 and the base plate 15, thereby conveniently and reliably fixing the receiving part 6. Furthermore, electrical structures such as wires can enter the power supply part 4 through the connection between the protrusion 313 and the tongues 62.

[0095] The implementation of the LED lighting fixtures in various embodiments of this application is as described above. It should be noted that, in various embodiments, for the same LED lighting fixture, features such as "the light source mainly consists of one or more LED light strips", "the LED light strip is provided with multiple LED light emitters", "the LED light strip can be circular or substantially circular", "the circular shape composed of multiple LED light strips can be a concentric ring", "the circular shape of the LED light strip can include one or more breaks", and "the LED light strip can also be arc-shaped or substantially arc-shaped", can be applied individually or as a whole in practice, so that only one feature is implemented or several features are implemented simultaneously.

[0096] For example, the light source mainly consists of one or more LED light strips, and the LED light strips are equipped with multiple LED light emitters.

[0097] For example, LED light strips can be circular or roughly circular.

[0098] In the above embodiments, the plurality of strip-shaped protrusions 12 can also be referred to as heat dissipation parts of the LED lamp. The strip-shaped protrusions 12 (heat dissipation parts) are disposed on the outer periphery of the power supply part 4. That is, in the light emission direction of the LED lamp, the projections of the strip-shaped protrusions 12 (heat dissipation parts) and the power supply part 4 do not overlap, or the overlapping area is zero. The strip-shaped protrusions 12 (heat dissipation parts) surround the power supply part 4, but they do not directly contact each other, that is, they are spaced apart. Similarly, the positional relationship between the light source part 2 (or the light emitter 21) and the power supply part 4 is the same as the positional relationship between the strip-shaped protrusions 12 (heat dissipation parts) and the power supply part 4.

[0099] See Figure 4 and Figure 5 , Figure 4 and Figure 5 This is an overall schematic diagram of the LED lamp from different perspectives in another embodiment of this application. As shown, the LED lamp 100 includes a base 1. The outer contour of the base 1 is annular along the light emission direction. Multiple heat dissipation parts 16 are arranged along the annular structure of the outer contour, pointing inwards from the annular shape. That is, the base 1 includes at least one heat dissipation part 16, which can be a heat dissipation fin along the optical axis of the LED lamp. The heat dissipation parts 16 are evenly distributed radially along the annular shape containing the outer contour of the base 1. The heat dissipation parts 16 point towards the center of the annular shape containing the base 1, and one end of at least one heat dissipation part 16 contacts and is fixed to the power supply part 4 located at the center of the annular shape of the base 1, while the other end is fixed to the outer contour of the base 1, thereby fixing the power supply part 4.

[0100] See Figure 6 and Figure 7 , Figure 6 This is a schematic diagram showing the combined state of the power supply unit 4 and the hanging support assembly 9 in one embodiment of this application. Figure 7 This is a schematic diagram showing the disassembled state of the power supply unit 4 and the mounting bracket 9 in one embodiment of this application. The power supply unit 4 is cylindrical, with at least a portion of its circumferential surface in contact with the heat dissipation unit 16. A mounting bracket 9 is provided on one of its surfaces. One end of the mounting bracket 9 is provided with a threaded portion 91, and the other end is provided with a suspension portion 93 and a movable closure member 94 that cooperates with the suspension portion 93. The mounting bracket 9 is connected and fixed by engaging with the mounting hole 13 on the power supply unit 4 through the threaded portion 91. It is fixed to the installation environment by the suspension portion 93 and the movable closure member 94. The power supply unit 4 is also fixed to the heat dissipation unit 16 (i.e., the base 1), thus enabling the LED lamp 100 to be fixed to the installation environment. The movable closure member 94 can open and close relative to the suspension portion 93 to form a completely closed ring structure or a semi-closed ring structure, thereby enabling the fixing and disassembly of the LED lamp to the installation environment.

[0101] The hanging support assembly 9 has an end face with a diameter larger than the threaded portion 91 at one end of the threaded portion 91. The end face extends outward along the radial direction of the threaded portion 91 by a certain distance to form an extension. At least one limiting through hole 95 is provided on the extension. The power supply 4 is provided with a corresponding limiting hole 41. A locking fastener 93 passes through the limiting through hole 95 and is screwed into the limiting hole 41 to achieve limiting, preventing the connection between the power supply 4 and the hanging support assembly 9 from loosening or falling off during the use of the LED lamp 100 due to vibration or gravity.

[0102] In a traditional setup, the mounting hole 13 protrudes outward, for example, relative to the power supply 4, to fix the hanging support assembly 9. More specifically, the threaded part 91 is accommodated by the outward protruding mounting hole 13, and the fastener 93 is also set horizontally, that is, roughly parallel to the light-emitting surface of the LED lamp. Under the influence of vibration, it is easy to fall outward, affecting the integrity and reliability of the overall structure of the LED lamp.

[0103] In this application, the internal components of the power supply unit 4 are arranged such that the mounting hole 13 is recessed within the power supply unit 4, which reduces the height of the LED lamp compared to the traditional convex structure. At the same time, the threaded part 91 is provided with an extension, which is roughly parallel to the light-emitting surface of the LED lamp and has a limiting through hole 95 that matches the recessed limiting hole 41 on the power supply unit 4. This allows the locking fastener 93 to be in a vertical state, that is, roughly perpendicular to the light-emitting surface of the LED lamp, i.e., the plane where the light source unit 2 is located. Furthermore, the locking fastener 93 and the limiting hole 41 are threaded together. The force generated by the vibration of the LED lamp is mostly vertical or horizontal, rather than a force that rotates around an axis. This makes it difficult for the locking fastener 93 and the limiting hole 41 to loosen or detach, thereby greatly improving the reliability of the LED lamp.

[0104] See Figure 8 This is a schematic diagram of the LED lamp 100 after being disassembled from the hanging support assembly 9 in one embodiment of this application. In one embodiment of this application, the power supply unit 4 and the base 1 are integrally formed, and the hanging support assembly 9 is fixed to the power supply unit 4 by a threaded structure.

[0105] In other embodiments of this application, the hanging support assembly 9 and the power supply unit 4 can also be fixed by snap-fit.

[0106] In another embodiment of this application, the power supply unit 4 and the base 1 are separate structures, and the power supply unit 4 is fixed by welding, snap-fitting, gluing, screws or other means.

[0107] See Figure 9 and Figure 10The figure shows a cross-sectional view of the LED lamp from both the front and back views in one embodiment of this application, along the radial direction of the base 1. As shown, the light source part 2 is a hollow annular plate. The heat dissipation part 16 is provided with a locking part for locking the light source part 2, and the heat dissipation part 16 is perpendicular to the surface of the light source part 2. The heat generated by the light source part 2 during operation is guided and dissipated through the heat dissipation part 16. Moreover, since the heat dissipation part 16 is perpendicular to the surface of the light source part 2, the heat dissipated by the light source part 2 will not be blocked or hindered by the surface of the heat dissipation part 16, thus improving the heat dissipation effect of the LED lamp. In other words, the light source part 2 consists of a light source plate and multiple LED beads (LED light emitters) disposed on the light source plate (not shown in the figure). The heat dissipation part 16 consists of multiple heat dissipation fins. The surface of the heat dissipation fins is perpendicular to the surface of the light source plate, that is, the surface of the heat dissipation fins is parallel to the vertical direction, i.e., parallel to the optical axis of the LED lamp.

[0108] The light source section 2 is hollow and fully exposes the power supply section 4. The power supply section 4 is connected and fixed to the heat dissipation section 16, and the heat dissipation sections 16 are spaced apart from each other. A heat dissipation channel 42 is formed between the light source section 2 and the power supply section 4 (see...). Figure 5 The heat dissipation part 16 extends along the optical axis of the LED lamp, and the heat dissipation part 16 is parallel to the heat dissipation channel 42. That is, the heat dissipation fins of the heat dissipation part 16 are parallel to the extension direction of the heat dissipation channel 42, which can quickly remove the heat of the LED lamp through air convection.

[0109] That is, in the light-emitting direction of the LED lamp, the projections of the heat sink 16 and the power supply 4 do not coincide, or the overlapping area is zero, and the heat sink 16 surrounds the power supply 4, but they are not in direct contact with each other, that is, they are spaced apart. Similarly, the positional relationship between the light source 2 and the power supply 4 is the same as the positional relationship between the heat sink 16 and the power supply 4.

[0110] In one embodiment of this application, by setting a perforated hole, an air flow channel is formed inside and outside the LED lamp, and the air convection inside and outside the LED lamp is realized to achieve rapid cooling.

[0111] Reference Figures 11A to 18 The LED lighting fixture of this application includes: a base 1, a light source 2, a power supply 4, and a hanging support assembly 9.

[0112] Reference Figures 12 to 13BThe base 1 has a base plate 15 and a side wall 14, which together form an accommodating space. The light source 2 is housed in this accommodating space. Preferably, the base plate 15 is a flat base plate, and the light source 2 is fixed to the base plate 15 in a relatively parallel state. More specifically, the light source 2 is fixed to a surface of the base plate 15 in a relatively parallel state within the accommodating space formed by the base plate 15 and the side wall 14. In other embodiments of this application, the base plate 15 may include a first perforation 151 communicating with the inside and outside of the accommodating space. The first perforation 151 is used for gas flow, and the gas can be air. Air can flow from the accommodating space through the first perforation 151 to the outside of the accommodating space, or from the outside of the accommodating space through the first perforation 151 to the accommodating space. The heating elements of the LED lamp during operation are generally LED beads and a power supply, i.e., the light source 2 and the power supply 4 in this document.

[0113] In this application, the base 1 can be flared, meaning the diameter of the base 1 varies along the axial direction, resulting in a gradual change in the axial direction, either regularly or irregularly, forming a final shape with one end larger than the other. In this embodiment, the end of the base 1 where the base plate 15 is located has a smaller diameter, and the end away from the base plate has a larger diameter; that is, the diameter of the end of the base 1 where the base plate 15 is located is smaller than the diameter of the end away from the base plate 15. Alternatively, the base 1 consists of a base plate 15 and a sidewall 14 surrounding the base plate 15. The sidewall 14 is located on the same side of the base plate 15 and extends in the same direction. In one embodiment of this application, the base plate 15 is circular or nearly circular, but it can also be other shapes, such as ellipse, rectangle, or rectangular; the sidewall 14 forms a structure similar to a frustum around the base plate 15, wherein the diameter of the sidewall 14 at the end near the base plate 15 is less than or equal to the diameter of the sidewall 14 at the end away from the base plate 15 (see...). Figure 11AThe sidewall 14 has a first diameter D1 at the end near the base plate 15 and a second diameter D2 at the end away from the base plate. The first diameter D1 is less than or equal to the second diameter D2, which is the diameter along the direction perpendicular to the optical axis of the LED lamp. In other words, in the base 1, a first diameter D1 is formed at the end of the sidewall 14 connected to the base plate 15, and a second diameter is formed at the opposite end of the sidewall 14 away from the end connected to the base plate 15, where the first diameter is less than or equal to the second diameter. Alternatively, it can be said that the radius of the LED lamp gradually increases along its light emission direction. The light source 2 and power supply 4, which generate heat during operation, are located near the base plate 15, i.e., at the end with the smaller diameter. The light source 2 is located on the side of the base plate 15 facing the sidewall 14, and the power supply 4 is located on the side of the base plate 15 away from the sidewall 14, i.e., on different sides of the base plate 15. This reduces the mutual influence between the heat generated by the light source assembly 20 and the heat generated by the power supply 4, while the end of the base 1 with the larger diameter is in an open, unobstructed state. Heat-generating components raise the temperature of their vicinity, including parts in direct and indirect contact with them, as well as the air. When there is a relative temperature difference in the air, relative airflow occurs, such as the relative flow of cold air and hot air. In this embodiment, the heat-generating components, namely the light source 2 and the power supply 4, are positioned at the base plate 15, specifically at the location where the LED lamp has a smaller diameter. This results in a relatively higher air temperature at the location with a smaller diameter, while the relative air temperature is lower in the area where the LED lamp has a larger diameter and at locations on the base away from the base plate 15. Furthermore, when the LED lamp is working, the horizontal height of the end with the smaller diameter is greater than that of the end with the larger diameter. The end with the relatively higher temperature is the end with the smaller diameter where the base plate 15 is located. The air temperature near it is relatively high, causing hot air to rise and move to the outside of the lamp through the first perforation 151. When the air near the base plate 15 (the end with the smaller diameter) moves to the outside of the lamp, a local air pressure difference is formed between the end with the smaller diameter and the end with the larger diameter. That is, the air pressure near the end with the smaller diameter is lower than the air pressure near the end with the larger diameter, and the air at the end with the larger diameter moves to the air at the end with the smaller diameter. Furthermore, the gas flow velocity can be roughly expressed as velocity = V / (T×S), where T represents time, V represents gas volume, and S represents the cross-sectional area of ​​the pipe. Based on the volume V of air discharged within the compressed air time T and the cross-sectional area S of the pipe, the flow velocity within the pipe can be calculated, i.e., the speed of movement of the base 1 (which can be approximated as a pipe). With other conditions remaining constant, as the pipe diameter decreases (i.e., S decreases), the flow velocity increases. The air moving from the larger diameter end of the base 1 to the smaller diameter end is a gradually accelerating process. During operation, relatively cool air continuously flows in from the larger diameter end of the base 1 and flows out from the smaller diameter end, quickly carrying away heat from the light source section 2 and the power supply section 4.Furthermore, it can achieve directional airflow delivery without the need for additional active heat dissipation components (such as fans), realizing passive airflow drive. It can even be said that it utilizes the unwanted heat generated by the lamp during operation as a driving source to drive airflow, realizing waste energy utilization and optimizing heat dissipation. Figure 11B As shown. The flowing gas allows for rapid heat exchange between the interior and exterior environments of the enclosure, quickly carrying away the heat emitted by the light source 2 within the enclosure of the base 1, effectively reducing the temperature of the LED lamp and extending its lifespan. The base 1 serves as the lamp body of a traditional high-power LED lamp, utilizing perforated holes for heat dissipation. Compared to traditional heat sinks, this simplifies the structure and reduces production costs and manufacturing complexity. The base 1 can be flared, with the diameter of the base plate 15 smaller than the diameter of the opening. A reflective layer can also be provided within the sidewall 14 of the base 1. The base 1 protects the light source 2, while the reflective layer on the inner wall of the base 1 increases the light emission rate and brightness of the light source 2. This reflective layer can be formed using the material properties of the base 1 itself, through additional coating or lamination processes, or by using other materials (such as a smooth metal sheet attached to the sidewall 14). As a preferred embodiment, the base 1 is made of metal. Metal has good thermal conductivity, and materials with good thermal conductivity tend to absorb and dissipate heat quickly. The metal base 1 can quickly transfer and dissipate the heat from the light source 2, thereby rapidly reducing the temperature of the light source 2 and improving the lifespan of the LED lamp. The base 1 can be made of silver, copper, aluminum, tungsten, magnesium, and other materials. In this embodiment, the base 1 is made of aluminum. Aluminum has good thermal conductivity, and its low density reduces the weight of the base 1. Furthermore, aluminum is relatively inexpensive, lowering production costs.

[0114] The light source 2 is disposed in the accommodating space of the base 1, and the light source 2 is used for emitting light and illumination.

[0115] The power supply unit 4 is located on the side of the base plate 15 of the base 1 away from the light source unit 2 (or relative to the side connected to the light source unit 2) and is electrically connected to the light source unit 2. The power supply unit 4 supplies power to the light source unit 2. Preferably, the power supply unit 4 is detachably connected to the base plate 15 of the base 1. This facilitates quick installation of the power supply unit 4 onto or from the base plate 15 of the base 1, improving assembly efficiency and facilitating the installation and maintenance of the LED lamp. Furthermore, if a component of the lamp is damaged, only that component needs to be disassembled and replaced, without replacing the entire lamp. This enables modular assembly and replacement of lamp components, reducing subsequent maintenance costs. (In conjunction with...) Figure 15AThe power supply unit 4 is fixed to the base 1 via a cover plate 420. The cover plate 420 has a second latch 421, and the base plate 15 of the base 1 may include a second slot 153. The second latch 421 on the cover plate 420 and the second slot 153 on the base plate 15 cooperate to fix the power supply unit 4 and the base 1. It is worth noting that the second slot 153 includes an insertion part 1531 and a fastening part 1532. The width of the insertion part 1531 along the radial direction of the base 1 is much greater than the width of the fastening part 1532 along the radial direction. The second latch 421 may include a bent structure, which can be L-shaped. Figure 15B The second latch 421 is L-shaped, including an extension 4211 and a bent portion 4212, which is approximately parallel to the base plate 15 of the base 1. The projection of the bent portion 4212 along the vertical direction of the base plate 15 of the base 1 can be completely accommodated in the insertion portion 1531, or in other words, the outer periphery of the bent portion 4212 is slightly smaller than the outline of the insertion portion 1531, so that the bent portion 4212 can pass through the insertion portion 1531. The thickness of the extension 4211 is slightly less than or equal to the radial width of the fastening portion 1532. During the fixing of the power supply portion 4 and the base 1, the bent portion 4212 is first passed through the insertion portion 1531, and the bent portion 4212 completely crosses the base plate 15 in the direction perpendicular to the base plate 15, without interfering with each other during rotation. Then rotate the power supply unit 4 and the cover plate 420 so that the extension part 4211 engages with the fastening part 1532, thereby achieving quick fixation of the power supply unit 4 and the base 1. That is, the second buckle 421 is aligned with the second slot 153, pressed down and then rotated at a certain angle to complete the fixation of the power supply unit 4 and the base 1.

[0116] In one embodiment, the thickness of the extension 4211 varies from small to large. The thickness of the extension 4211 on the side near the fastening part 1532 is less than the width of the fastening part 1532 in the radial direction. The thickness of the extension 4211 gradually increases on the side away from the fastening part 1532, eventually being slightly greater than or equal to the width of the extension 4211. This allows the extension 4211 to quickly enter the fastening part 1532 and ultimately achieve a locking and fixing, such as an interference fit.

[0117] In one embodiment, the curvature of the extension 4211 is slightly smaller than that of the fastening part 1532, so that when the extension 4211 is screwed into the fastening part 1532, the extension 4211 undergoes slight deformation, and the extension 4211 and the fastening part 1532 abut against each other and are pressed together to be more firmly fixed.

[0118] In one embodiment, the extension 4211 is inclined, meaning that the straight-line distance between the bent portion 4212 and the center of the base plate 15 relative to the base plate 15 is less than the straight-line distance between the junction of the extension 4211 and the cover plate 420 and the center of the base plate 15. Furthermore, the second latch 421 has a certain degree of elasticity and can undergo slight deformation. The outer radius of the bottom of the second latch 421, i.e., the bent portion 4212, is slightly less than or equal to the outer radius of the insertion portion 1311, while the radius of the circumference of the arc of the extension 4211 gradually increases from the bent portion 4212 towards the cover plate 420. When fixing the power supply unit 4 and the base 1, the power supply unit 4 is pressed slightly downwards, that is, the second buckle 421 passes through the insertion part 1531. A certain pressure is applied to make the second buckle 421 pass through the insertion part 1531, and its extension 4211 abuts against the outer periphery of the insertion part 1531. As the radius of the extension 4211 gradually increases, it is forced to deform towards the center of the base plate 15 (which can also be the center, and the base plate 15 can also be other shapes, such as rectangles), and tends to move away from the center of the base plate 15, applying pressure to the outer periphery of the insertion part 1531. When the extension 4211 is screwed into the fastening part 1532, on the one hand, the width of the extension 42111 is greater than that of the fastening part 1532, so the second buckle 421 cannot be dislodged. On the other hand, the extension 4211 deforms and abuts against the fastening part 1532, so the second buckle 421 is difficult to slide relative to the fastening part 1532, avoiding abnormal noise or loosening, and improving the fixing effect.

[0119] In one embodiment, the extension 4211 has a slot corresponding to the fastening part 1532, and the extension 4211 and the fastening part 1532 can be partially fitted together.

[0120] In one embodiment, a magnetic element is provided on the bent portion 4212, and a magnetic element is also provided near the fastening portion 1532. The two attract each other to achieve better fixation.

[0121] When the power supply unit 4 and the base 1 are disassembled, they can be completely disassembled by rotating them in the opposite direction or by applying a certain pressure and then rotating them in the opposite direction. The second latch 421 can be completely removed from the insertion part 1531.

[0122] The volume of the housing space of the base 1 is larger than that of the power supply unit 4. During packaging, the light source unit 2 and the power supply unit 4 can be placed together in the housing space of the base 1, requiring only one packaging box. This eliminates the need to package the various parts of the LED lamp separately, saving packaging costs and improving packaging and transportation efficiency. During installation, the light source unit 2 is placed in the housing space of the base 1, and the power supply unit 4 is placed on the side of the base plate 15 away from the light source unit 2. The power supply unit 4 is located on the outside of the base 1 and is spaced apart from the light source unit 2 to prevent the heat generation of the power supply unit 4 and the light source unit 2 from interfering with each other and to facilitate heat dissipation of the power supply unit 4. Furthermore, the power supply unit 4 is surrounded by the first perforation and is positioned in the air outlet direction, accelerating heat dissipation of the power supply unit 4.

[0123] In one specific embodiment, the light source unit 2 includes a lamp plate 20 and a lamp cover 3. The lamp plate 20 is provided with LED beads (i.e., LED light emitters 211, not shown), which are used to emit light and are evenly distributed along the lamp plate 20. The lamp beads can be LED beads. The lamp cover 3 is positioned in front of the light-emitting direction of the LED beads and completely covers the LED beads (LED light emitters 211). The lamp cover 3 can be made of a light-transmitting material, such as glass, resin, acrylic, or plastic. The lamp cover 3 can be fixed to the lamp plate 20 or the base 1 and completely cover the lamp plate 20. Furthermore, it can be positioned perpendicular to the lamp plate 20, so that the projection of the lamp cover 3 can completely cover the lamp plate 20, thereby forming a relatively sealed environment and effectively protecting the lamp plate 20 and the related components fixed on it.

[0124] The lampshade 3 can be a PC cover or a lens. The lampshade 3 can protect the LED beads from damage and adjust the light emission angle of the light emitted by the LED beads, thereby enhancing the light utilization efficiency and luminous efficiency of the LED beads. For example, in one embodiment of this application, the lampshade 3 can be a lens that protrudes from the lamp board 20 toward the light emission direction of the LED beads. The lens is a curved surface with a certain curvature, and the side facing the lamp board 20 is a concave cavity, so that the lamp board 20 and at least one electronic component can be accommodated in the concave cavity. At the same time, the lampshade 3 is a convex lens that protrudes along the light emission direction of the LED beads, which has the effect of light diffusion and homogenization relative to the light emission of the LED beads (i.e., LED light emitters), expanding the light emission angle of the lamp and reducing glare. Furthermore, compared to traditional LED lamps, the LED lamps with the above-described structure eliminate the need for a face ring. In traditional lamps, the lamp panel lens needs to be fixed by a face ring, with the outer circumference of the face ring slightly larger than that of the lens and the inner circumference slightly smaller. This face ring is typically attached to the base plate 15 with screws. A portion of the face ring's structure fits against a part of the lens near its outer circumference, pressing the lens onto the lamp panel 20 and fixing it to the lamp panel 20, while also further strengthening the fixation of the lamp panel 20. Since the lampshade 3 (or lens) itself has a fixing structure, the face ring fixing structure for the lens is eliminated, significantly simplifying the lamp structure, improving assembly efficiency, and reducing production costs.

[0125] The power supply unit 4 includes a power module 40, which is disposed on the side of the base plate 15 of the base 1 away from the light source unit 2. The power module 40 is electrically connected to the light source unit 2. The power supply unit 4 also includes a cover plate 420, on which the power module 40 is disposed. The cover plate 420 is disposed on the side of the base plate 15 of the base 1 away from the light source unit 2. The cover plate 420 has a second perforation 423, which corresponds to the first perforation 151 and is used to allow gas flow. The gas can be air, which can pass through the first perforation 151 and the second perforation 423. The air flow carries away heat, effectively reducing the temperature of the LED lamp and avoiding the impact of high temperature on electronic components and some heat-sensitive materials in the lamp, thereby improving the lifespan of the LED lamp. In other words, the ring containing the first perforation 151 and the second perforation 423 forms a heat dissipation part of the LED lamp. In the light emission direction of the LED lamp, the projection of this heat dissipation part is spaced apart from the power supply unit, and the heat dissipation part surrounds the power supply unit.

[0126] In one specific embodiment, the lamp board 20 is connected to the base plate 15 of the base 1 via a fastener 201. The base plate 15 of the base 1 has a through hole through which the fastener 201 passes. A first sealing ring 202, which can be a rubber ring, is fitted onto the fastener 201 at the through hole. The lamp board 20 and the base plate 15 of the base 1 are tightly connected together by the fastener 201, with the lamp board 20 essentially fitting against the base plate 15. This allows the heat from the light source 2 to be quickly conducted to the base 1, and then dissipated rapidly through gas flow, accelerating the cooling speed of the LED lamp and further improving its lifespan. The first sealing ring 202 fitted onto the fastener 201 improves the sealing between the fastener 201 and the through hole, preventing external moisture from seeping in through the through hole and affecting the lifespan of the LED chips or causing short circuits in the electronic components on the lamp board 20. (Refer to...) Figure 18 The first sealing ring 202 preferably adopts a riveted structure, which can further improve the sealing performance between the fastener 201 and the through hole, achieving waterproof sealing of the LED lamp, such as reaching IP66 waterproof level, suitable for humid environments. The fastener 201 can be a screw or bolt, etc., and the number of fasteners 201 can be multiple. In this embodiment, the number of fasteners 201 is three.

[0127] In another specific embodiment, an adhesive (not shown) is provided between the lamp plate 20 and the base plate 15 of the base 1. The lamp plate 20 is bonded to the base plate 15 of the base 1 by the adhesive. The adhesive is preferably a thermally conductive adhesive, which has good thermal conductivity and can quickly transfer the heat of the light source 2 to the base 1. The heat is then carried away by the gas flow and quickly dissipated, accelerating the cooling speed of the LED lamp and further improving the service life of the LED lamp. The thermally conductive adhesive can be a composite colloid containing a certain amount of thermally conductive particles.

[0128] As a preferred embodiment, a portion of the cover plate 420 passes through the base plate 15 and is located within the receiving space of the base 1, and the lampshade 3 is detachably connected to the base plate 15. Specifically, refer to... Figure 13A The base plate 15 of the base 1 has a first slot 152 and a second slot 153, as shown in the reference. Figure 14 The lampshade 3 is provided with a first buckle 310, which locks into a first slot 152 to connect the lampshade 3 to the base 1. Through the first buckle 310 and the first slot 152, the lampshade 3 and the base 1 can be quickly installed and removed, facilitating operation. (Refer to...) Figure 15AThe cover plate 420 is provided with a second buckle 421, which locks in the second slot 153 to connect the cover plate 420 to the base 1. Through the structure of the second buckle 421 and the second slot 153, the cover plate 420 and the base 1 can be quickly installed and disassembled, facilitating operation. Preferably, the light source unit 2 also includes a second sealing ring 370, located between the lampshade 3 and the base plate 15 of the base 1. The second sealing ring 370 creates a sealed space between the lampshade 3 and the base plate 15, preventing external moisture from entering, thus better protecting the LED beads and improving the lifespan and reliability of the LED lamp.

[0129] Reference Figure 14 The lampshade 3 is also provided with positioning posts 320, and the base plate 15 and cover plate 420 of the base 1 are provided with corresponding positioning holes 422. The positioning holes 422 are used for the positioning posts 320 to pass through so that the lampshade 3 and cover plate 420 are fixed to the base 1. Specifically, the positioning posts 320 can be set around the lampshade 3, or they can be connected to the lampshade 3 through connecting parts. The connecting parts can be made of deformable or non-deformable materials, preferably made of deformable materials. As a preferred embodiment, the positioning posts 320 are elastic bodies, and the free end of the positioning posts 320 has a stop part 330. When the positioning posts 320 pass through the positioning holes 422, the stop part 330 of the positioning posts 320 first shrinks and then enlarges so that the stop part 330 is locked at the positioning hole 422. Through the interaction between the positioning posts 320 and the positioning holes 422, the lampshade 3 and cover plate 420 can be further fixed to the base 1.

[0130] In one specific embodiment, the lampshade 3 has an incident surface and an exit surface, and the lampshade 3 acts as an adjustment part to adjust the light emission, as shown in the reference. Figure 16 and Figure 17 Multiple annular protrusions 340 are provided on the incident surface and / or the exit surface. The multiple annular protrusions 340 are distributed radially at intervals along the lamp cover 3. Each annular protrusion 340 includes multiple protrusion segments 3401. The adjacent two protrusion segments 3401 of each annular protrusion 340 are staggered in the radial direction of the lamp cover 3. In other words, the distance between the adjacent two protrusion segments 3401 of each annular protrusion 340 and the center of the lamp cover 3 is different. The even-numbered protrusion segments 3401 of each annular protrusion 340 can be located on the same arc line, and the odd-numbered protrusion segments 3401 of each annular protrusion 340 can be located on the same arc line. Rotating the lamp cover 3 changes the position between the annular protrusions 340 and the lamp beads (i.e., LED light emitters), so that the light emitted by the lamp beads changes the light emission angle from the lamp cover 3, thereby changing the light emission effect of the LED lamp, such as a focusing effect or a light diffusion effect, to meet the needs of different applications. The annular protrusion 340 has multiple protruding segments 3401 with light-effect surfaces arranged around the circumference of the lampshade 3, such as... Figure 16As shown, there are luminous efficacy surfaces 350 and 360 corresponding to luminous efficacy surfaces 350 and 360, which form a certain angle with the horizontal plane (the horizontal plane where the LED beads are located). For example, in some embodiments, the angle between luminous efficacy surfaces 350 and 360 and the horizontal plane is controlled between 10° and 150°, so that the light emitted by the LED beads can undergo specific light conversions on luminous efficacy surfaces 350 and 360, such as reflection, refraction, scattering, light convergence, etc.

[0131] If the lampshade 3 is rotated by a certain angle, the distance and angle between its light-emitting surface 350 and light-emitting surface 360 ​​will change. After reflection and refraction, the overall light emission angle of the lamp will change. For example, the range of light emission angle can be between 30° and 120°, or between 45° and 90°.

[0132] In some embodiments, a pointer can be set on the lampshade 3 and a corresponding light emission angle can be set on the lamp plate 20. That is, after the pointer of the lampshade 3 is rotated to the corresponding light emission angle, the light emission angle of the lamp is adjusted to the light emission angle corresponding to that scale, which is convenient for operation.

[0133] In some embodiments, the light emission angle of the luminaire is minimized when the LED bead is located at the midpoint of the gap between the corresponding protrusion segments 3401 of the annular protrusion 340; the light emission angle of the luminaire is maximized when the LED bead is close to the corresponding protrusion segment 3401 of the annular protrusion 340. For example... Figures 19A to 20B The following are schematic diagrams of light patterns and light effects under certain conditions in some embodiments of this application, where the maximum light emission angle is set to 90° and the minimum light emission angle is 45°. Figure 19A The image shown is a light pattern diagram under the condition of a light emission angle of 45°. Figure 19B This is a light effect diagram under a 45° light emission angle. In this case, the light is concentrated in the center of the lamp, providing high illumination directly below or in the center of the lamp. This is suitable for scenarios requiring high illumination and clear visibility, such as selecting goods or observing colors. Figure 20A The image shown is a light pattern diagram under the condition that the light emission angle is 90°. Figure 19B This is a light effect diagram under the condition of a 90° light emission angle. At this time, the light is diffused and has a wide illumination range, which is suitable for some wide environments and usage scenarios that do not require too high illumination, such as some wide transportation roads.

[0134] In some embodiments, the positioning post 320 and the stop 330 can be removed to increase the adjustment range of the lampshade 3.

[0135] In one specific implementation, refer to Figure 12The power module 40 includes a housing 410, a driver power supply (not shown), and an adjustment switch 411. The housing 410 has a chamber for housing the driver power supply, which is electrically connected to the lamp panel 20. The adjustment switch 411 is connected to the driver power supply and partially protrudes from the housing 410. The adjustment switch 411 is used to control the driver power supply. Color temperature adjustment and power adjustment can be set on the adjustment switch 411. Various specifications can be provided for both color temperature and power adjustment. Color temperature adjustment can include three types, such as CW (cool white), NW (warm white), and WW (neutral white). NW (warm white) has a color temperature of around 3000K, WW (neutral white) has a color temperature of around 4000K, and CW (cool white) generally has a color temperature above 5000K. Power adjustment can include three types, such as 150W, 200W, and 250W, but is not limited to these three power levels and can be adjusted according to actual needs. This allows the LED lighting fixture to offer nine different brightness and color temperature modes, meeting the needs of various applications. The power module 40 also includes an auxiliary power supply (not shown) and a wireless control device 412. The auxiliary power supply can adjust the external power source (e.g., AC mains power), such as adjusting current and voltage, enabling it to use wireless control devices of different specifications. The auxiliary power supply powers the wireless control device 412, which in turn controls the driver power supply. The wireless control device 412 can connect to a smart module, such as via Bluetooth, to achieve intelligent control, facilitating switching between different operating modes of the LED lighting fixture or remote lighting, thus giving the LED lighting fixture IoT functionality.

[0136] To facilitate the installation of LED lights in relation to the external environment, please refer to... Figure 11A The LED light fixture may also include a hook 9, one end of which is connected to the power supply unit 4. The hook 9 can be connected to the power supply unit 4 by means of a threaded connection, which facilitates installation and disassembly.

[0137] In some embodiments, the auxiliary power supply also has a certain energy storage function, enabling the lamps to be used for a period of time in the event of a power outage, for example, acting as an emergency power supply by lighting up for a longer period of time in a low-power mode during a power outage.

[0138] In this application, the above features can be arranged and combined in any way and used to improve LED lighting fixtures.

[0139] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be considered that the inventor has not considered that subject matter as part of the disclosed inventive subject matter.

Claims

1. An LED lighting fixture, characterized in that, include: A base, the base including at least one heat dissipation part, the heat dissipation part including a plurality of heat dissipation fins; The light source unit is disposed on the base, and the light source unit includes a light source board and a plurality of LED beads disposed on the light source board. The heat dissipation fins are perpendicular to the light source board. The power supply unit has at least one end of the heat dissipation unit fixed to the power supply unit and the opposite end fixed to the base. The light source and the power supply are spaced apart from each other. The power supply is connected to the heat dissipation unit and disposed on the outer periphery of the power supply unit. The heat dissipation units are spaced apart from each other and form a vertically penetrating heat dissipation channel between the light source and the power supply unit. A lampshade is connected to the base, and the light source is disposed between the lampshade and the base; the lampshade protrudes along the light emission direction of the LED beads to form a convex lens, and the side of the lampshade facing the lamp board is a concave cavity.

2. The LED lamp according to claim 1, characterized in that, Also includes: A hanging support assembly, wherein the power supply part includes a mounting hole, and the hanging support assembly includes a threaded part, the threaded part being accommodated in the mounting hole.

3. The LED lamp according to claim 2, characterized in that: The heat dissipation part is provided with a locking part, and the light source part is mounted on the base through the locking part.

4. The LED lamp according to claim 3, characterized in that: The light source is a hollow circular plate, and the light source is completely exposed above the power supply. The overlapping area of ​​the projections of the light source and the power supply in the light emission direction of the LED lamp is zero.

5. The LED lamp according to claim 4, characterized in that: The heat dissipation channel extends along the optical axis of the LED lamp, the surface of the heat dissipation fins is parallel to the optical axis of the LED lamp, and the heat dissipation channel is parallel to the heat dissipation fins.

6. The LED lamp according to claim 5, characterized in that: The lampshade has multiple lampshade screw holes, and the base has multiple base screw holes. Multiple screws pass through the lampshade screw holes and the base screw holes to connect the lampshade to the base.

7. The LED lamp according to claim 6, characterized in that: The projections of the light source and the heat dissipation unit in the light emission direction of the LED lamp are spaced apart from and surround the power supply unit.

8. The LED lamp according to claim 7, characterized in that: The outer contour of the base is a circular ring structure, and the heat dissipation parts are evenly distributed along the radial direction of the ring.

9. The LED lamp according to claim 8, characterized in that: It also includes a receiving part and a sensor. The receiving part is connected to the base by snap-fit ​​or thread, the power supply part is housed in the receiving part, and the sensor is disposed at the bottom of the receiving part.

10. The LED lamp according to claim 9, characterized in that: The height ratio of the accommodating part to the base is 0.5 to 1.

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