A direct insertion LED lamp bead with multi-layer light emitting effect

Abstract

The utility model discloses a kind of straight insertion LED lamp beads with multilayer light emitting effect, to provide a kind of straight insertion LED lamp beads with multilayer light emitting effect, protection performance reliable, luminous effect excellent, structure stable and convenient to assemble maintenance, its technical solution main point is including lamp stand, lamp shade, set on the lamp stand lampwick component and fixedly connected between the shell of lamp stand and lamp shade, the bottom of the lamp stand is fixedly connected with two pins, the outside of the shell is equipped with protection component, the protection component includes the fixed ring with inclined surface annular guide rail and first protective cover and second protective cover that are successively set in the outside of shell, T type sliding slot matched with guide rail is equipped on the inner wall of second protective cover. The utility model is applicable to LED lamp bead technical field.

Description

Technical Field

[0001] This utility model relates to the field of LED lamp bead technology, and more specifically, it relates to a through-hole LED lamp bead with multi-layer light emission effect. Background Technology

[0002] Through-hole LED chips, as a commonly used light-emitting device, are widely used in lighting, display, and indicator applications due to their advantages such as low energy consumption, long lifespan, and fast response speed. With the continuous upgrading of market demands, higher requirements are being placed on the luminous effect of through-hole LED chips. Multi-layered luminous effects, which can create richer visual layers and atmospheres, have become a research hotspot in recent years.

[0003] Existing technologies include various LED beads. For example, Chinese utility model patent application number CN202320856085.8 discloses a through-hole LED bead with multi-layer light-emitting effect, comprising a bracket, two pins fixedly connected to the bottom of the bracket, a housing fixedly connected to the top of the bracket, an arc-shaped cover fixedly connected to the top of the housing, and a protective component on the outside of the housing, including a fixing ring fixedly connected to the outside of the housing. This utility model incorporates a protective component. Through the design of the protective component, a first protective cover and a second protective cover cooperate with each other. Under the action of force, the first protective cover is fitted onto the outside of the housing. When the LED bead is powered on and emits light, the light passes through the first protective cover. The first protective cover protects the LED bead from damage caused by external forces. Simultaneously, the second protective cover can be fitted onto the outside of the housing by external force to protect the LED bead from breakage if dropped.

[0004] The existing technical solutions described above have the following drawbacks: their protective function is significantly limited. The second protective cover only engages with the fixed ring via a sliding connection and relies solely on protrusions for positioning. This makes it prone to displacement or even detachment when subjected to external impacts or vibrations, failing to stably protect the outer shell and internal components. The baffle is connected to the fixed base via a rotating column, lacking a locking structure. When idle, it can easily rotate freely, potentially blocking light or interfering with other components. Furthermore, the first protective cover and the outer shell are fitted together without a clearly defined fixing method. If not securely fixed, it is prone to loosening and shifting, affecting the protective effect. Additionally, the two-layer protective cover design may increase assembly complexity and reduce production efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a through-hole LED lamp bead with reliable protection performance, excellent light emission effect, stable structure and easy assembly and maintenance, and multi-layer light emission effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: 1. A through-hole LED lamp bead with multi-layer light emission effect, comprising a lamp holder, a lamp cover, a lamp core assembly disposed on the lamp holder, and a housing fixedly connected between the lamp holder and the lamp cover. The bottom of the lamp holder is fixedly connected to two pins. The outer surface of the housing is provided with a protective component. The protective component includes a fixing ring with a sloping annular guide rail and a first protective cover and a second protective cover sequentially sleeved on the outer surface of the housing. The inner wall of the second protective cover is provided with a T-shaped sliding groove that matches the guide rail.

[0007] The present invention is further configured such that: a connecting rod is fixedly connected to one side of the first protective cover, and an elastic buckle is provided between the first protective cover and the outer shell. The elastic buckle includes a buckle protrusion provided on the outer wall of the outer shell and a buckle groove provided on the inner wall of the first protective cover, wherein the buckle protrusion and the buckle groove are adapted to each other.

[0008] The present invention is further configured such that: a fixing rod is fixedly connected to the side of the connecting rod away from the first protective cover; a limiting rod is slidably connected to the outside of the fixing rod; a limiting hole is provided on the fixing rod; and an elastic protrusion adapted to the limiting hole is provided on the limiting rod; the elastic protrusion is engaged in the limiting hole.

[0009] The present invention is further configured such that: the top of the lamp holder is provided with a dovetail-shaped groove, and a U-shaped block is provided in the groove for interference fit, and the two ends of the U-shaped block are fixedly connected to the bottom of the outer shell.

[0010] The present invention is further configured such that: the lamp core assembly includes an installation chamber disposed on the lamp holder and having a stepped structure in longitudinal section, and an optical platform having at least two levels disposed in the installation chamber, wherein at least one LED chip and a corresponding phosphor layer are embedded in the optical platform, and the optical axes of adjacent LED chips coincide.

[0011] The present invention is further configured such that the diameter of each optical platform in the stepped mounting chamber decreases from bottom to top, and a 45-60° light reflection slope is formed between adjacent platforms.

[0012] The beneficial effects of this utility model are:

[0013] 1. The connection method of the protective components is more robust. The fixed connection between the retaining ring and the outer shell provides a solid support foundation for the entire protective component, while the precise fit between the T-shaped slide groove and the inclined annular guide rail ensures the structural stability of the second protective cover during movement and stationary placement, avoiding the protection failure problem caused by loose connections in traditional protective structures. In addition, the double protective cover setting also strengthens the overall structure of the LED, reducing the impact of external impacts on components such as the lamp holder and pins, and ensuring the stable operation of the LED during long-term use.

[0014] 2. The protruding tabs on the outer wall of the outer casing and the slots on the inner wall of the first protective cover are mutually matched, enabling quick and secure locking of both. This prevents the first protective cover from loosening or slipping during use, ensuring effective protection of the LED beads at all times. This snap-fit ​​connection method is also simple to operate. During installation, simply slip the first protective cover onto the outer casing and apply appropriate pressure to secure it. Disassembly is easy with minimal force, facilitating later inspection or replacement of the internal structure of the LED beads, significantly improving assembly and maintenance efficiency. The limiting holes on the fixing rod and the elastic protrusions on the limiting rod are mutually matched, enabling precise positioning during adjustment and preventing deviations in the protective position due to excessive sliding. When the linkage range of the first protective cover needs adjustment, the elastic protrusions engage with the different limiting holes to stably lock the desired position, preventing displacement due to vibration or other external forces during use. This ensures that the protective components always work collaboratively along the preset trajectory, improving the overall structural reliability.

[0015] 3. The interference fit between the dovetail groove and the U-shaped block offers significant advantages. The dovetail structure itself possesses excellent anti-detachment properties, and combined with the interference fit, it ensures the U-shaped block is firmly embedded in the groove, effectively preventing it from loosening or falling off during LED use. Simultaneously, the two ends of the U-shaped block are fixedly connected to the bottom of the outer casing, tightly linking the lamp holder and the casing into a single unit. This significantly improves the structural strength of the connection between the lamp holder and the casing, reducing the risk of connection failure due to external impacts or long-term vibration, and ensuring the overall stability of the LED structure.

[0016] 4. The independent design of the multi-level optical platform provides a dedicated optical environment for each LED chip. The phosphor layer is directly embedded within the optical platform, ensuring close contact with the chip, improving fluorescence conversion efficiency, and reducing light loss during transmission. Simultaneously, the inner wall of the stepped chamber creates a reflector-like focusing effect, guiding light from each layer towards a preset direction, enhancing light directionality and concentration, and improving the luminous efficiency and brightness uniformity of the LED. Furthermore, the coincident optical axis design ensures consistency in the propagation path of multiple layers of light, avoiding light spots or shadows caused by light interference, further optimizing luminous quality. The optical platform with decreasing diameter from bottom to top, combined with a 45-60° light-reflecting slope, accurately reflects the lateral light emitted from the lower LED chip. The optimized slope angle efficiently guides light that might otherwise be scattered and wasted to the main optical axis, superimposing it with the light from the upper chip, significantly reducing light loss and dramatically improving the overall luminous efficiency of the LED. Meanwhile, the reflective slope is equivalent to adding a directional reflective structure to each platform, making the propagation direction of light from each layer more concentrated, avoiding mutual interference caused by scattering of light from multiple layers, and maximizing the utilization of light. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a magnified view of point A;

[0020] Figure 4 This is a magnified view of point B;

[0021] Figure 5 This is a magnified view of point C;

[0022] Figure 1-5 Reference numerals in the attached drawings: 1. Lamp holder; 2. Lamp cover; 3. Housing; 4. Pin; 5. First protective cover; 6. Second protective cover; 7. Connecting rod; 8. Snap-fit ​​protrusion; 9. Snap-fit ​​groove; 10. Fixing rod; 11. Limiting rod; 12. Limiting hole; 13. Elastic protrusion; 14. Dovetail groove; 15. U-shaped block; 16. Fixing ring; 17. Guide rail; 18. T-shaped slide. Detailed Implementation

[0023] Reference Figures 1 to 5 The embodiments of this utility model will be further described below.

[0024] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0026] Figures 1 to 5The diagram illustrates a through-hole LED chip with multi-layered light-emitting effect, comprising a lamp holder 1, a lamp cover 2, a lamp core assembly mounted on the lamp holder 1, and a housing 3 fixedly connected between the lamp holder 1 and the lamp cover 2. Two pins 4 are fixedly connected to the bottom of the lamp holder 1. A protective assembly is provided on the outside of the housing 3. This protective assembly includes a fixing ring 16 with a sloping annular guide rail 17, and a first protective cover 5 and a second protective cover 6 sequentially fitted onto the outside of the housing 3. The inner wall of the second protective cover 6 has a T-shaped groove 18 that matches the guide rail 17. This dual-protection assembly provides a more stable connection. The fixed connection between the fixing ring 16 and the housing 3 provides a solid support foundation for the entire protective assembly, while the precise fit between the T-shaped groove 18 and the sloping annular guide rail 17 ensures the structural stability of the second protective cover 6 during movement and stationary placement, avoiding the protection failure problem caused by loose connections in traditional protective structures. Furthermore, the double protective cover design strengthens the overall structure of the LED chip, reducing the impact of external forces on components such as the lamp holder 1 and the pins 4, ensuring stable operation of the LED chip during long-term use.

[0027] The fixing ring 16 is made of high-temperature resistant plastic and is fixed to the middle of the outer shell 3 by adhesive or snap-fit ​​connection. The inclined annular guide rail 17 on its outer wall has a continuous spiral structure with an inclination angle of 30°, which facilitates the sliding of the second protective cover 6 and also provides a certain degree of limitation. Both the first protective cover 5 and the second protective cover 6 are made of transparent polycarbonate, which has good light transmission and impact resistance. The height of the first protective cover 5 is equal to the height of the outer shell 3, and the height of the second protective cover 6 is slightly greater than the height of the outer shell 3, which can completely cover the upper part of the outer shell 3 and the lamp core assembly. The fit clearance between the T-shaped slide and the inclined annular guide rail 17 is controlled between 0.1-0.2mm to ensure that the second protective cover 6 can slide flexibly without excessive shaking.

[0028] A connecting rod 7 is fixedly connected to one side of the first protective cover 5. An elastic buckle is provided between the first protective cover 5 and the outer shell 3. The elastic buckle includes a protrusion 8 on the outer wall of the outer shell 3 and a groove 9 on the inner wall of the first protective cover 5. The protrusion 8 and the groove 9 are compatible, enabling quick and easy locking and fixing of the two, preventing the first protective cover 5 from loosening or slipping during use, and ensuring that it always maintains effective protection for the LED beads. At the same time, this buckle connection method is simple to operate. During installation, simply slip the first protective cover 5 onto the outer shell 3 and apply appropriate pressure to complete the fixing; during disassembly, it can be separated with slight force, facilitating later inspection or replacement of the internal structure of the LED beads, greatly improving the efficiency of assembly and maintenance.

[0029] A fixing rod 10 is fixedly connected to the side of the connecting rod 7 away from the first protective cover 5. A limiting rod 11 is slidably connected to the outside of the fixing rod 10. A limiting hole 12 is provided on the fixing rod 10. An elastic protrusion 13 is provided on the limiting rod 11 to match the limiting hole 12. The elastic protrusion 13 is engaged in the limiting hole 12, which can achieve precise positioning during adjustment and avoid deviation of the protective position due to excessive sliding. When it is necessary to adjust the linkage range of the first protective cover 5, the elastic protrusion 13 can be engaged between different limiting holes 12 to stably lock the required position, prevent displacement due to external forces such as vibration during use, ensure that the protective components always work together according to the preset trajectory, and improve the reliability of the overall structure.

[0030] The lamp holder 1 has a dovetail-shaped groove 14 at its top, and a U-shaped block 15 with an interference fit is provided in the groove. The dovetail structure itself has good anti-detachment properties, and together with the interference fit, the U-shaped block 15 can be firmly embedded in the groove, effectively preventing the U-shaped block 15 from loosening or falling off during the use of the lamp bead. At the same time, the two ends of the U-shaped block 15 are fixedly connected to the bottom of the outer shell 3, tightly connecting the lamp holder 1 and the outer shell 3 into a whole through the U-shaped block 15. This greatly improves the structural strength of the connection between the lamp holder 1 and the outer shell 3, reduces the problem of connection failure caused by external impact or long-term vibration, and ensures the stability of the overall structure of the lamp bead.

[0031] The lamp core assembly includes a mounting chamber with a stepped longitudinal cross-section, mounted on a lamp holder 1, and at least two levels of optical platforms within the mounting chamber. Each optical platform contains at least one LED chip and a corresponding phosphor layer. The optical axes of adjacent LED chips coincide. The independent design of the multi-level optical platforms provides a dedicated optical environment for each LED chip. The phosphor layer is directly embedded within the optical platform, ensuring close contact with the chip, improving fluorescence conversion efficiency, and reducing light loss during transmission. Simultaneously, the inner wall of the stepped chamber creates a reflector-like focusing effect, guiding light from each layer towards a preset direction, enhancing the directionality and concentration of the light, and improving the luminous efficiency and brightness uniformity of the lamp. Furthermore, the coincident optical axis design ensures consistency in the propagation path of multiple layers of light, avoiding light spots or shadows caused by light interference, further optimizing the luminous quality.

[0032] The diameter of each optical platform in the stepped mounting chamber decreases from bottom to top, with 45-60° light-reflecting slopes formed between adjacent platforms. This allows for precise reflection of lateral light emitted from the lower LED chips. The optimized slope angle efficiently guides light that might otherwise be scattered and wasted towards the main optical axis, superimposing it with the light from the upper chips, significantly reducing light loss and greatly improving the overall luminous efficacy of the LEDs. Simultaneously, the reflective slopes effectively add a directional reflective structure to each platform, concentrating the propagation direction of light from each layer and preventing mutual interference caused by scattering of light from multiple layers, thus maximizing light utilization.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A direct insertion LED lamp bead with multi-layer light emitting effect, comprising a lamp holder (1), a lampshade (2), a lampwick assembly arranged on the lamp holder (1), and an outer shell (3) fixedly connected between the lamp holder (1) and the lampshade (2), the bottom of the lamp holder (1) is fixedly connected with two pins (4), characterized in that, The outer shell (3) is provided with a protective component. The protective component includes a fixing ring (16) with a sloping annular guide rail (17) and a first protective cover (5) and a second protective cover (6) sequentially fitted onto the outer shell (3). The inner wall of the second protective cover (6) is provided with a T-shaped groove (18) that matches the guide rail (17).

2. A direct-plug LED lamp bead with multi-layer light-emitting effect according to claim 1, characterized in that, A connecting rod (7) is fixedly connected to one side of the first protective cover (5). An elastic buckle is provided between the first protective cover (5) and the outer shell (3). The elastic buckle includes a buckle protrusion (8) provided on the outer wall of the outer shell (3) and a buckle groove (9) provided on the inner wall of the first protective cover (5). The buckle protrusion (8) and the buckle groove (9) are adapted to each other.

3. A through-hole LED bead with multi-layer light-emitting effect according to claim 2, characterized in that, A fixing rod (10) is fixedly connected to the side of the connecting rod (7) away from the first protective cover (5). A limiting rod (11) is slidably connected to the outside of the fixing rod (10). A limiting hole (12) is opened on the fixing rod (10). An elastic protrusion (13) adapted to the limiting hole (12) is provided on the limiting rod (11). The elastic protrusion (13) is engaged in the limiting hole (12).

4. A through-hole LED bead with multi-layer light-emitting effect according to claim 1, characterized in that, The lamp holder (1) has a dovetail-shaped groove (14) at the top, and a U-shaped block (15) is provided in the groove for interference fit. The two ends of the U-shaped block (15) are fixedly connected to the bottom of the outer shell (3).

5. A through-hole LED bead with multi-layer light-emitting effect according to claim 1, characterized in that, The lamp core assembly includes an installation chamber disposed on a lamp holder (1) and having a stepped longitudinal cross-section, and an optical platform with at least two levels disposed within the installation chamber. Each optical platform has at least one LED chip and a corresponding phosphor layer embedded within it, and the optical axes of adjacent LED chips coincide.

6. A through-hole LED bead with multi-layer light-emitting effect according to claim 5, characterized in that, The diameter of each optical platform in the mounting chamber decreases from bottom to top, and a 45-60° light reflection slope is formed between adjacent platforms.

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