An integrated LED lamp with a novel metal casing

Abstract

This utility model discloses an integrated LED lamp with a novel metal shell, comprising: a plastic shell assembly, an LED light-emitting board, a metal shell, and a PCB board assembly. The plastic shell assembly includes a first plastic shell and a second plastic shell. The LED light-emitting board is detachably connected to the upper surface of the metal shell. The first plastic shell covers the LED light-emitting board and is detachably connected to the metal shell via a fastener. The metal shell has an opening slot on its side, into which the PCB board can be inserted and electrically connected to the metal shell. The second plastic shell has an arc-shaped structure and can be snapped into the end face of the opening slot. The metal shell proposed in this utility model not only undertakes the functions of installing and dissipating heat from the LED light-emitting board, but also integrates the insertion and electrical connection of the PCB board through the opening slot on its side, achieving synergistic optimization of thermal, electrical, and structural functions.

Description

Technical Field

[0001] This utility model belongs to the field of LED lighting technology, and specifically relates to an integrated LED lighting fixture with a novel metal shell. Background Technology

[0002] In existing technologies, LED lamps are widely used in the lighting field due to their advantages such as high efficiency, energy saving, and long lifespan. However, as LED lamps develop towards miniaturization and compactness, they face many challenges in terms of heat dissipation, insulation, and structural protection. For example, traditional LED lamps typically employ complex heat dissipation structures, such as multi-layer heat sinks or independent heat dissipation modules, to address the heat generated by the LED chip. While such designs effectively dissipate heat, they often lead to increased lamp size and structural complexity, increasing manufacturing costs and assembly difficulty. Furthermore, the insulation protection of LED lamps relies on additional insulating materials or complex packaging processes, such as embedding multiple insulating layers within a metal casing. This not only increases production steps but may also lead to unstable insulation performance due to process errors.

[0003] Meanwhile, the structural design of compact LED luminaires typically suffers from the following problems: First, the integration of heat dissipation and structure is insufficient, with heat dissipation components often separated from the luminaire body, resulting in a long heat conduction path and reduced heat dissipation efficiency; second, insulation and protection functions rely on multiple independent components, such as plastic shells and insulating gaskets, which complicates the overall structure and makes it prone to leakage or short circuit risks due to issues in the fit between components; finally, traditional designs struggle to optimize costs while balancing heat dissipation, insulation, and structural protection, especially during mass production, where complex processes significantly increase manufacturing costs.

[0004] To address the aforementioned issues, existing technologies have not yet proposed an LED lighting solution that can simplify the structure, reduce production costs, and simultaneously achieve efficient heat dissipation, insulation protection, and structural stability. Therefore, there is an urgent need for an innovative structural design that integrates heat dissipation, insulation, and protection functions within a compact LED lighting fixture by optimizing component layout and material selection, thereby overcoming the technical bottlenecks in existing technologies. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an integrated LED lamp with a novel metal shell. Through the innovative design of the metal shell and the synergistic cooperation of the plastic shell, the problems of low heat dissipation efficiency, complex structure and insufficient insulation protection in the prior art are solved.

[0006] To solve the above problems, the technical solution adopted by the present utility model is as follows: An integrated LED lamp with a new type of metal shell, comprising: a plastic outer shell assembly, an LED light-emitting board, a metal shell, and a PCB board assembly. The plastic outer shell assembly includes a first plastic outer shell and a second plastic outer shell. The LED light-emitting board is detachably connected to the upper end surface of the metal shell. The first plastic outer shell covers the LED light-emitting board from above, and the first plastic outer shell is detachably connected to the metal shell through a fixing member. An opening groove is provided on the side surface of the metal shell. The PCB can be inserted into the opening groove, and the PCB board is electrically connected to the metal shell. The second plastic outer shell has an arc-shaped structure, and the second plastic outer shell can be snap-fitted to the end surface of the opening groove.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows: The metal shell proposed by the present utility model not only undertakes the installation and heat dissipation functions of the LED light-emitting board, but also integrates the insertion and electrical connection of the PCB board through the opening groove on its side surface, realizing the coordinated optimization of the three functions of heat, electricity, and structure. By integrating the heat dissipation, insulation, and protection functions into the metal shell and the plastic outer shell, the structure proposed by the present utility model eliminates components such as independent heat dissipation modules and insulation gaskets required in the traditional design, and at the same time reduces the volume of the heat dissipation components, making the overall lamp more compact. At the same time, the double insulation design of the insulating material inside the metal shell and the plastic outer shell effectively isolates the electrical connection between the metal shell and the LED component, avoiding problems such as electric leakage or short circuit. More importantly, the plastic outer shell is divided into two parts and respectively covers the top and side surfaces of the metal shell. The first plastic outer shell is used to fix the PCB board assembly and the LED component, and the second plastic outer shell plays a role in sealing and protection, preventing external interference to the internal electronic components. The cooperation between the plastic outer shell and the metal shell not only simplifies the assembly process, but also further enhances the overall insulation performance through the insulating characteristics of the plastic material.

[0008] For the above-mentioned LED lamp, the metal shell is of a columnar structure, the cross-section of the opening groove is of a U-shaped structure, and a square fixing groove is provided on the upper end surface of the metal shell. The LED light-emitting board can be snap-fitted into the square fixing groove.

[0009] For the above-mentioned LED lamp, a wire groove is provided at the edge of the upper end surface of the metal shell, and a wire inlet is provided at the edge of the square fixing groove. The wire can enter the wire inlet along the wire groove in sequence so that the wire is connected to the LED lamp board.

[0010] For the above-mentioned LED lamp, symmetrically arranged first snap-fitting grooves are further provided at the edge of the upper end surface of the metal shell. The first snap-fitting grooves are arranged vertically, the first snap-fitting grooves are of a "匚" shape, and a positioning hole is provided on one side of the first snap-fitting groove.

[0011] In the aforementioned LED lighting fixture, the fixing component is a first clamping plate that is vertically downward and symmetrically distributed at the lower edge of the first plastic shell. The first clamping plate can be clamped into the first clamping groove. A positioning post is provided on one side of the first clamping plate. The positioning post can be inserted into the positioning hole so that the first plastic shell is fixed above the metal shell.

[0012] In the aforementioned LED lamp, the upper surface of the first plastic housing is provided with a ring of evenly distributed first threaded holes, the interior of which is provided with a light-transmitting portion. The upper surface of the LED lamp board is provided with a second threaded hole. The first threaded hole and the second threaded hole can be fixed by screws to fix the first plastic housing above the LED light-emitting board.

[0013] In the aforementioned LED lighting fixture, the PCB board assembly has a circular structure, and the wires on the PCB board assembly can be electrically connected to the wires inside the opening slot.

[0014] In the aforementioned LED lamp, a second vertically upward-facing retaining plate is provided at the lower edge of the opening slot. A first step is provided on both sides of the second retaining plate. An inclined surface is provided on the outer first step, and a third screw hole is provided on the inclined surface.

[0015] The aforementioned LED lighting fixture has a third, vertically oriented plate on the inner side of the first plate.

[0016] The aforementioned LED lamp further includes a photosensitive drum, and the lower end face of the plastic shell is provided with a third slot, into which the second card plate can be engaged. Attached Figure Description

[0017] Figure 1 This is an exploded view of the LED lamp structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the metal shell structure of the LED lamp fixture according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the plastic housing assembly structure of the LED lamp fixture according to an embodiment of the present utility model; The reference numerals are as follows: 100 LED light-emitting board, 110 second threaded hole, 200 metal shell, 210 opening slot, 220 second card plate, 221 first step, 222 inclined surface, 223 third screw hole, 230 wire inlet slot, 240 wire inlet, 250 first card slot, 260 positioning hole, 270 square fixing slot, 300 PCB board assembly, 400 plastic shell assembly, 410 first plastic shell, 411 first card plate, 412 first threaded hole, 413 light-transmitting part, 415 third card plate, 416 positioning post, 420 second plastic shell, 421 second card slot, 422 third card slot, 500 wire. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below, with reference to Figures 1 to 3 This utility model provides an integrated LED lamp with a novel metal shell, comprising: a plastic shell assembly 400, an LED light-emitting board 100, a metal shell 200, and a PCB board assembly 300. The plastic shell assembly 400 includes a first plastic shell 410 and a second plastic shell 420. The LED light-emitting board 100 is detachably connected to the upper surface of the metal shell 200. The first plastic shell 410 covers the top of the LED light-emitting board 100 and is detachably connected to the metal shell 200 by a fastener. The side of the metal shell 200 is provided with an opening groove 210, into which the PCB can be inserted and electrically connected to the metal shell 200. The second plastic shell 420 has an arc-shaped structure and can be snapped onto the end face of the opening groove 210. The metal shell 200 proposed in this utility model not only undertakes the installation and heat dissipation functions of the LED light-emitting board 100, but also integrates the plug-in and electrical connection of the PCB board assembly 300 through the opening groove 210 on its side, realizing the synergistic optimization of thermal, electrical and structural functions. By integrating heat dissipation, insulation, and protection functions into the metal shell 200 and the plastic shell, the structure proposed in this utility model eliminates the need for independent heat dissipation modules, insulating pads, and other components required in traditional designs. It also reduces the volume of the heat dissipation components, making the overall lamp more compact. Furthermore, the double insulation design of the insulating material inside the metal shell 200 and the plastic shell effectively isolates the electrical connection between the metal shell 200 and the LED components, preventing leakage or short circuits. More importantly, the plastic shell is divided into two parts, covering the top and sides of the metal shell 200 respectively. The first plastic shell 410 is used to fix the PCB board assembly 300 and the LED components, while the second plastic shell 420 serves a sealing and protective function, preventing external interference to the internal electronic components. The combination of the plastic shell and the metal shell 200 not only simplifies the assembly process but also further enhances the overall insulation performance through the insulating properties of the plastic material.

[0019] Furthermore, the metal shell 200 of the LED lamp proposed in this utility model has a columnar structure, and the cross-section of the opening slot 210 is U-shaped. The upper end surface of the metal shell 200 is provided with a square fixing slot 270, into which the LED light-emitting board 100 can be snapped. Compared with traditional flat or irregularly shaped shells, the columnar structure has higher structural rigidity and compressive strength, and can effectively resist external impacts and vibrations, making it particularly suitable for applications with high structural strength requirements, such as industrial lighting or outdoor lighting. The U-shaped opening slot 210 not only provides a stable guiding channel for the insertion of the PCB board assembly 300, but its two side walls can also form a tight fit with the edge of the PCB board assembly 300, enhancing the stability of the electrical connection. At the same time, the bottom of the U-shaped structure can serve as part of the heat dissipation channel, promoting heat conduction along the side walls of the metal shell 200 to the bottom. The design of the square fixing slot 270 ensures the precise positioning of the LED light-emitting board 100 during installation, avoiding problems such as poor contact or uneven heat dissipation caused by installation deviations. Compared to circular or other irregularly shaped slots, the square structure has a larger contact area, which facilitates the uniform transfer of heat from the LED light-emitting panel 100 to the metal shell 200, reducing the formation of localized hot spots. Furthermore, the four right-angled edges of the square slot can act as limiting structures, preventing the LED light-emitting panel 100 from rotating or shifting during installation, thus improving assembly accuracy. This structure also facilitates identification and positioning by automated assembly equipment, making it suitable for intelligent manufacturing production lines and significantly improving production efficiency. The collaborative design of the U-shaped opening slot 210 and the square fixing slot 270 allows the metal shell 200 to simultaneously fulfill its three functions of structural support, heat dissipation, and electrical connection, while achieving precise alignment and stable connection between components. This is a key structural feature for achieving high integration and high reliability in the lighting fixture. Furthermore, referring to… Figure 1The metal casing 200 has a wire inlet groove 230 at its upper edge, and a wire inlet 240 at the edge of the square fixing groove 270. The wire 500 can enter the wire inlet 240 sequentially along the wire inlet groove 230 to connect to the LED light panel. The wire inlet groove 230 at the upper edge of the metal casing 200 provides a dedicated channel for the wire 500 to enter the interior of the light fixture, avoiding insulation damage and safety hazards caused by the wire 500 being exposed externally or randomly passing through. The wire inlet groove 230 also optimizes the routing of the wire 500, allowing it to smoothly enter along the edge of the metal casing 200, reducing the risk of internal damage caused by excessively small bending radii of the wire 500. The wire inlet 240 is located at the edge of the square fixing groove 270, allowing the wire 500 to extend directly from the wire inlet groove 230 to the connection point of the LED light panel 100, shortening the wire 500 path and reducing resistance loss and electromagnetic interference. This optimized wiring path design not only improves the reliability of electrical connections but also reduces the internal space occupation and clutter caused by excessively long wires 500, which is conducive to a compact layout of the internal space of the luminaire. In addition, the combined design of the inlet trough 230 and the inlet port 240 enables the orderly introduction and positioning of the wires 500, avoiding assembly errors or poor contact caused by the random insertion of wires 500 in traditional luminaires.

[0020] Furthermore, the upper edge of the metal shell 200 also has symmetrically arranged first locking grooves 250. The first locking grooves 250 are vertically oriented and "U"-shaped. A positioning hole 260 is also provided on one side of the first locking grooves 250. The "U"-shaped and vertically oriented first locking grooves 250 have their openings facing the center of the metal shell 200, providing a stable locking space for the first locking plate 411 of the first plastic shell 410. Compared with simple straight grooves or recesses, this "U"-shaped structure has stronger pull-out resistance and can effectively resist loosening of the first plastic shell 410 due to vibration or external force during use. The positioning hole 260 provides dual axial and radial positioning. When the positioning post 416 on the first clamping plate 411 is inserted into the positioning hole 260, it not only restricts the rotational freedom of the first plastic shell 410 but also ensures its precise position on the metal shell 200, avoiding poor sealing or decreased optical performance due to assembly deviations. The symmetrical arrangement of the two first snap-fit ​​grooves 250 and the positioning hole 260 further enhances the balance and stability of the structure, allowing the first plastic shell 410 to distribute the load evenly under stress, reducing local stress concentration. This design also improves the assembly tolerance. Even with slight deviations during automated assembly, the guiding effect of the positioning post 416 and the positioning hole 260 helps the first clamping plate 411 smoothly enter the first snap-fit ​​groove 250, achieving a "self-alignment" function. Of course, this application does not limit the specific structure of the "U"-shaped snap-fit ​​groove. Preferably, the inner wall of the "U"-shaped snap-fit ​​groove can be designed with a structure with small barbs or elastic protrusions to further enhance the snap-fit's firmness. Furthermore, the fastener mentioned in this utility model is a first locking plate 411 vertically downward and symmetrically distributed at the lower edge of the lower end face of the first plastic shell 410. The first locking plate 411 can be locked into the first locking groove 250. A positioning post 416 is provided on one side of the first locking plate 411, and the positioning post 416 can be inserted into the positioning hole 260 to fix the first plastic shell 410 above the metal shell 200. The first locking plates 411 are symmetrically distributed at the lower edge of the lower end face of the first plastic shell 410, ensuring uniform force distribution and avoiding tilting or warping caused by unilateral force. During the locking process, the first locking plate 411 slides into the "U"-shaped first locking groove 250, and its inner edge forms a tight fit with the inner wall of the first locking groove 250, generating sufficient friction to resist external vibration and impact. After the positioning post 416 is inserted into the positioning hole 260, not only is axial positioning achieved, but also pre-tightening force is generated through interference fit or elastic deformation, further enhancing the stability of the connection. This dual-fixing mechanism (clamping + positioning) offers superior fatigue resistance and durability compared to single screw or snap-fit ​​connections, making it particularly suitable for lighting equipment operating for extended periods. Furthermore, this structure eliminates the need for additional fasteners (such as screws), simplifying the assembly process, reducing production costs, and avoiding the risk of loose or stripped screws.During maintenance, the user only needs to apply appropriate external force to remove the first card plate 411 from the first card slot 250, achieving quick disassembly, while the cooperation between the positioning post 416 and the positioning hole 260 ensures accurate resetting during reassembly.

[0021] Furthermore, referring to Figure 1 The upper surface of the first plastic housing 410 is provided with annularly distributed first threaded holes 412, and the interior of the annular threaded holes 412 is provided with a light-transmitting part 413. The upper surface of the LED light panel is provided with a second threaded hole 110. The first threaded holes 412 and the second threaded holes 110 can be fixed by screws to fix the first plastic housing 410 above the LED light-emitting panel 100. The annularly distributed threaded hole design ensures uniform distribution of clamping force, avoiding sealing failure or deformation of optical components due to insufficient local clamping. The light-transmitting part 413 takes into account both functionality and aesthetics, allowing light to pass through from above the first plastic housing 410, which is suitable for lamp designs that require top illumination or indication functions. The introduction of screw connection forms a rigid connection between the first plastic housing 410 and the LED light-emitting panel 100, effectively suppressing relative displacement caused by thermal expansion and contraction or mechanical vibration, and ensuring the stability of the optical system. Furthermore, this structure allows for independent fixing at different levels (metal shell 200 - first plastic shell 410, LED light-emitting board 100 - first plastic shell 410), improving assembly flexibility and fault tolerance. For example, when replacing the LED light-emitting board 100, the screws can be removed first, and then the snap-fit ​​can be released, without completely disassembling the entire lamp. The layout of the annular threaded holes also optimizes stress distribution, reducing the risk of cracking of the plastic shell due to concentrated stress. Further, the PCB board assembly 300 has a circular structure, and the wires 500 on the PCB board assembly 300 can be electrically connected to the wires 500 inside the opening slot 210. Compared to rectangular or other irregularly shaped boards, the circular PCB board assembly 300 has superior stress distribution characteristics, effectively resisting thermal and mechanical stress, and reducing the risk of cracking due to edge stress concentration. The circular structure also facilitates rotational alignment within the opening slot 210, improving assembly fault tolerance. The electrical connection of the wires 500 inside the opening slot 210 avoids the risk of external wiring exposure, improving electrical safety. This connection method can employ various forms such as plug-in terminals, spring contacts, or soldering, ensuring connection stability and low resistance. The layout of the circular PCB assembly 300 also optimizes the utilization of internal space, allowing it to be compactly embedded in the arc or circular area of ​​the metal shell 200, reducing internal gaps and contributing to the overall compactness of the structure.

[0022] Further, referring to Figure 2, a vertically upward-facing second retaining plate 220 is provided at the lower edge of the opening slot 210. First steps 221 are provided on both sides of the second retaining plate 220, and an inclined surface 222 is provided on the outer first step 221. A third screw hole 223 is provided on the inclined surface 222. The second retaining plate 220, vertically positioned at the lower edge of the opening slot 210, provides stable support for the snap-fit ​​of the second plastic housing 420. The first step 221 increases the snap-fit ​​depth and contact area, improving the pull-out resistance of the connection. The third screw hole 223 on the inclined surface 222 allows for further reinforcement of the connection with screws, forming a dual guarantee of "snap-fit ​​+ screw fastening". The design of the inclined surface 222 also facilitates the installation and removal of screws, reducing the limitation of operating space. This structure is particularly suitable for lighting scenarios that need to withstand large external loads or vibrations, such as lighting devices installed on vehicles or industrial equipment. The presence of the third screw hole 223 allows for reinforcement when a higher strength connection is required, while in general scenarios, quick assembly can be achieved solely through snap-fit, improving design flexibility. Furthermore, the inner side of the first clip plate 411 has a vertically oriented third clip plate 415. The two side edges of the second plastic housing 420 are provided with second snap-fit ​​grooves 421, and the third clip plate 415 can snap into the second snap-fit ​​grooves 421 to fix the first plastic housing 410 to the second plastic housing 420. The lower end face of the plastic housing is provided with a third slot 422, and the second clip plate 220 can snap into the third slot 422. The third clamping plate 415 provides an additional snap-fit ​​structure for the connection between the first plastic shell 410 and the second plastic shell 420. This design enables a direct mechanical connection between the upper and lower plastic shells, enhancing the overall structural rigidity and sealing performance. The third clamping plate 415 snaps into the second snap-fit ​​groove 421, ensuring a stable connection between the upper and lower shells in the vertical direction. The second clamping plate 220 snaps into the third snap-fit ​​groove 422, achieving reliable fixation between the second plastic shell 420 and the metal shell 200. This multi-point, multi-directional snap-fit ​​structure forms a three-dimensional connection network, significantly improving the overall structural stability and deformation resistance. This design also optimizes the sealing path, ensuring that the seam between the upper and lower shells is covered by multiple snap-fit ​​structures, effectively preventing the intrusion of moisture and dust. Furthermore, this structure allows for sequential assembly of components: first, the PCB board assembly 300 is inserted into the opening slot 210; then, the second plastic shell 420 is installed and snapped into the second clamping plate 220; finally, the first plastic shell 410 is installed and connected to the second snap-fit ​​groove 421 via the third clamping plate 415. This modular assembly process improves production efficiency and assembly accuracy.

[0023] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An integrated LED lamp with a novel metal casing, characterized in that, Including: A plastic housing assembly (400), an LED light-emitting panel (100), a metal housing (200), and a PCB board assembly (300). The plastic housing assembly (400) includes a first plastic housing (410) and a second plastic housing (420). The LED light-emitting panel (100) is detachably connected to the upper end face of the metal housing (200). The first plastic housing (410) covers the LED light-emitting panel (100) and is detachably connected to the metal housing (200) through a fixing member. An opening groove (210) is provided on the side of the metal housing (200). The PCB board assembly (300) can be inserted into the opening groove (210) and is electrically connected to the metal housing (200). The second plastic housing (420) is in an arc-shaped structure and can be snap-fitted to the end face of the opening groove (210).

2. The LED lamp according to claim 1, characterized in that, The metal housing (200) is in a columnar structure. The cross-section of the opening groove (210) is in a U-shaped structure. A square fixing groove (270) is provided on the upper end face of the metal housing (200). The LED light-emitting panel (100) can be snap-fitted into the square fixing groove (270).

3. The LED lamp according to claim 2, characterized in that, A wire groove (230) is provided at the edge of the upper end face of the metal housing (200). An inlet (240) is provided at the edge of the square fixing groove (270). A wire (500) can enter the inlet (240) along the wire groove (230) in sequence to connect the wire (500) to the LED light-emitting panel (100).

4. The LED lamp according to claim 3, characterized in that, Symmetrically arranged first clamping grooves (250) are further provided at the edge of the upper end face of the metal housing (200). The first clamping grooves (250) are arranged vertically and are in a "C" shape. A positioning hole (260) is provided on one side of the first clamping groove (250).

5. The LED lamp according to claim 4, characterized in that, The fixing member is that vertically downward and symmetrically distributed first clamping plates (411) are provided at the edge of the lower end face of the first plastic housing (410). The first clamping plates (411) can be snap-fitted into the first clamping grooves (250). A positioning column (416) is provided on one side of the first clamping plate (411). The positioning column (416) can be inserted into the positioning hole (260) to fix the first plastic housing (410) above the metal housing (200).

6. The LED lamp according to claim 5, characterized in that, Circularly and uniformly distributed first threaded holes (412) are provided on the upper end face of the first plastic housing (410). A light-transmitting part (413) is provided inside the first threaded holes (412). Second threaded holes (110) are provided on the upper end face of the LED light-emitting panel (100). The first threaded holes (412) and the second threaded holes (110) can be fixedly corresponding through screws to fix the first plastic housing (410) above the LED light-emitting panel (100).

7. The LED lamp according to claim 6, characterized in that, The PCB board assembly (300) has a circular structure, and the wires (500) on the PCB board assembly (300) can be electrically connected to the wires (500) inside the opening slot (210).

8. The LED lamp according to claim 7, characterized in that, The lower end face edge of the opening groove (210) is provided with a vertically upward second card plate (220), and the two sides of the second card plate (220) are provided with a first step (221), the first step (221) is provided with an inclined surface (222), and the inclined surface (222) is provided with a third screw hole (223).

9. The LED lamp according to claim 8, characterized in that, The inner side of the first card plate (411) has a third card plate (415) in a vertical direction.

10. The LED lamp according to claim 9, characterized in that, The second plastic shell (420) has a second snap-fit ​​groove (421) on both sides of its edge. The third snap-fit ​​plate (415) can snap into the second snap-fit ​​groove (421) to fix the first plastic shell (410) to the second plastic shell (420). The lower end face of the plastic shell assembly (400) has a third snap-fit ​​groove (422). The second snap-fit ​​plate (220) can snap into the third snap-fit ​​groove (422).

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