A type of surface mount full-color LED bead

Abstract

This utility model discloses a surface-mount full-color LED bead, relating to the field of LED bead technology, aiming to solve the technical problem of poor waterproof performance of current full-color LED beads for outdoor use. It includes a base plate, with LED beads fixedly connected to the top of the base plate. A waterproof cover, fitted over the outside of the LED beads, is also fixedly installed on the top of the base plate. A connector integrally formed on the bottom side of the waterproof cover fits snugly against the top side of the base plate. A sealing element for limiting the position of the connector is fixedly installed on the top of the base plate. This utility model, through the cooperation of the waterproof cover, connector, and sealing element, forms a unique N-shaped sealing surface design with the sealing cover fitting snugly against the outer side of the connector. This results in a multi-dimensional sealing structure between the connector and the sealing element, significantly increasing the sealing contact area and effectively preventing moisture intrusion. It has the advantages of tight structural fit, excellent sealing effect, and reduced moisture contact.

Description

Technical Field

[0001] This utility model relates to the field of LED lamp bead technology, and more specifically, to a surface-mount full-color LED lamp bead. Background Technology

[0002] In today's outdoor applications, such as outdoor billboards and landscape lighting, surface-mount full-color LED chips have been widely used due to their excellent color rendering capabilities, energy-saving characteristics, and compact size. However, these applications often face complex and variable environmental conditions, among which waterproof performance has become a key factor affecting the reliability and lifespan of surface-mount full-color LED chips.

[0003] Existing surface-mount full-color LED chips have significant defects in their waterproof design. A common issue is that their encapsulation structure is not airtight enough, containing tiny gaps or holes. This allows moisture to easily seep into the chip, potentially causing a short circuit and preventing the chip from emitting light properly. Moisture can also corrode internal conductive components such as gold wires, affecting the chip's electrical performance, reducing its luminous efficiency, or even causing complete damage. Such damage due to waterproofing issues not only increases maintenance costs but can also disrupt the normal operation of outdoor facilities, causing considerable inconvenience to users. Therefore, we propose a surface-mount full-color LED chip. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a surface-mount full-color LED bead to solve the technical problem of poor waterproof performance of current full-color LED beads for outdoor use.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a surface-mount full-color LED bead, including a base plate, an LED bead fixedly connected to the top of the base plate, a waterproof cover sleeved on the outside of the LED bead fixedly installed on the top of the base plate, a connector integrally formed on the bottom side of the waterproof cover that fits against the top side of the base plate, a sealing element for limiting the position of the connector fixedly installed on the top of the base plate, and an N-shaped sealing surface formed between the connector and the sealing element, and a plurality of limiting elements that engage with the sealing element fixedly provided on the top of the base plate;

[0006] The sealing element includes a sealing cover that fits against the outer side of the connector. A sealing ring that fits against the inner side of the connector is fixedly provided on the top and bottom sides of the sealing cover. Both the connector and the sealing cover have an L-shaped cross section.

[0007] This utility model utilizes a waterproof cover, connectors, and seals in combination. The seal cover fits snugly against the outer surface of the connector, forming a unique N-shaped sealing surface design. This creates a multi-dimensional sealing structure between the connector and the seal, significantly increasing the sealing contact area. This effectively prevents moisture intrusion, protects the LED beads, extends their service life in humid environments, and effectively improves the overall sealing performance.

[0008] Preferably, a mating cavity is formed between the connector and the waterproof cover, and a mating ring that fits against the bottom of the sealing ring is fixedly provided on the side of the connector near the waterproof cover.

[0009] Preferably, the side of the connector that fits with the sealing ring has an installation groove, a sealing ring is fixedly installed inside the installation groove, and a sealing groove that abuts against the sealing ring is provided on the side of the sealing ring.

[0010] Preferably, a number of pins are fixedly provided on the side of the base plate, a number of heat dissipation fins are fixedly provided on the bottom of the base plate, and a groove is provided on the top of the base plate for insertion into the bottom of the sealing cover.

[0011] Preferably, each of the limiting members includes an elastic plate, the side of the elastic plate away from the sealing cover has a plurality of curved grooves, and the side of the elastic plate close to the sealing cover is integrally formed with a limiting protrusion.

[0012] Preferably, the outer side of the sealing cover is provided with a plurality of limiting grooves that engage with the limiting protrusions, and the mating surfaces of the limiting grooves and the limiting protrusions are both arc-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the cooperation of a waterproof cover, connector, and seal, forms a unique N-shaped sealing surface design by fitting the outer side of the sealing cover and the connector together. This results in a multi-dimensional sealing structure between the connector and the seal, which greatly increases the sealing contact area, effectively preventing moisture intrusion, protecting the LED beads, extending their service life in humid environments, and effectively improving the overall sealing performance.

[0015] 2. This utility model also forms a double sealing barrier by having the sealing ring in the mounting groove abut against the sealing groove on the sealing ring. The setting of the mating cavity and the mating ring makes the connector fit more tightly with the bottom of the sealing ring, reducing gaps, improving the overall sealing reliability, further enhancing the sealing effect, reducing the risk of lamp bead damage due to sealing failure, and extending service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged structural diagram of section A;

[0019] Figure 4 for Figure 2 A partial structural diagram of the waterproof cover;

[0020] Figure 5 for Figure 2 A partial structural diagram of the central sealing component.

[0021] The following are the labels in the diagram: 1. Base plate; 101. Pin; 102. Heat sink fin; 103. Groove; 2. LED bead; 3. Waterproof cover; 4. Connector; 401. Docking cavity; 402. Mounting groove; 403. Docking ring; 5. Seal; 501. Sealing cover; 502. Sealing ring; 503. Sealing groove; 504. Limiting groove; 505. Anti-slip protrusion; 6. Sealing ring; 7. Limiting component; 701. Elastic plate; 702. Bending groove; 703. Limiting protrusion. Detailed Implementation

[0022] like Figures 1 to 5 As shown, this utility model relates to a patch-type full-color LED bead, including a base plate 1. An LED bead 2 is fixedly connected to the top of the base plate 1. A waterproof cover 3 is also fixedly installed on the top of the base plate 1, sleeved on the outside of the LED bead 2. A connector 4 is integrally formed on the bottom side of the waterproof cover 3, fitting against the top side of the base plate 1. A sealing member 5 is fixedly installed on the top of the base plate 1 to limit the position of the connector 4, and an N-shaped sealing surface is formed between the connector 4 and the sealing member 5. Several limiting members 7 are fixedly provided on the top of the base plate 1 to engage with the sealing member 5. The LED bead 2, fixed on the top of the base plate 1, is the core for achieving full-color illumination. The cooperation of the waterproof cover 3, connector 4, and sealing member 5 can strengthen the sealing and restriction of the LED bead 2, improve the waterproof effect of the LED bead 2, reduce the occurrence of malfunctions caused by internal components coming into contact with moisture, and improve the service life.

[0023] The sealing element 5 includes a sealing cover 501 that fits against the outer side of the connector 4. A sealing ring 502 that fits against the inner side of the connector 4 is fixedly provided on the top and bottom sides of the sealing cover 501. Both the connector 4 and the sealing cover 501 have L-shaped cross sections. By connecting the connector 4 and the sealing cover 501 with L-shaped cross sections, an N-type multi-seal surface can be formed, which can greatly increase the water penetration path, effectively prevent water from entering, and maintain a good sealing effect.

[0024] In this embodiment of the present invention, a mating cavity 401 is formed between the connector 4 and the waterproof cover 3. A mating ring 403 that fits against the bottom of the sealing ring 502 is fixedly provided on the side of the connector 4 near the waterproof cover 3. An installation groove 402 is provided on the side of the connector 4 that fits against the sealing ring 502. A sealing ring 6 is fixedly provided inside the installation groove 402. A sealing groove 503 that abuts against the sealing ring 6 is provided on the side of the sealing ring 502. The structural fit can further enhance the sealing performance, achieve multiple sealing effects, and enhance the waterproof effect on the LED beads 2.

[0025] In this embodiment of the utility model, a plurality of pins 101 are fixedly arranged on the side of the base plate 1, a plurality of heat dissipation fins 102 are fixedly arranged on the bottom of the base plate 1, and a groove 103 is opened on the top of the base plate 1 to be inserted into the bottom of the sealing cover 501. When current is transmitted to the LED bead 2 through the pins 101 on the side of the base plate 1, the semiconductor material inside the LED bead 2 is excited to emit light of different colors. By reasonably controlling the intensity ratio of different colors of light, a full-color display effect is achieved. The setting of the heat dissipation fins 102 increases the contact area with air. The heat generated by the LED bead 2 when it is working is conducted to the heat dissipation fins 102 through the base plate 1, and then dissipated to the surrounding environment by the heat dissipation fins 102, effectively reducing the working temperature of the LED bead 2. The setting of the groove 103 restricts the position of the sealing member 5, making the whole structure more stable.

[0026] In the embodiments of this utility model, each limiting member 7 includes an elastic plate 701. The side of the elastic plate 701 away from the sealing cover 501 is provided with a plurality of bending grooves 702. The side of the elastic plate 701 close to the sealing cover 501 is integrally formed with a limiting protrusion 703. The opening of the bending grooves 702 can enhance the bending curvature of the elastic plate 701, so that the limiting protrusion 703 can automatically shift when squeezed by the sealing cover 501.

[0027] In the embodiments of this utility model, the outer side of the sealing cover 501 is provided with a plurality of limiting grooves 504 that engage with the limiting protrusions 703, and the mating surfaces of the limiting grooves 504 and the limiting protrusions 703 are both arc-shaped; the combination of the two can restrict the installation position of the sealing element 5, and the arc-shaped surface design makes it easy to squeeze and separate, and facilitates disassembly and assembly operations. The side of the sealing cover 501 is also provided with anti-slip protrusions 505, which can increase anti-slip resistance and facilitate pulling the sealing element 5 to complete the disassembly and assembly operations.

[0028] Working Principle: This embodiment provides a surface-mount full-color LED bead. First, the LED bead 2 is fixed to the top of the base plate 1, which is the core for achieving full-color illumination. When current is transmitted to the LED bead 2 through the pin 101 on the side of the base plate 1, the semiconductor material inside the LED bead 2 is excited to emit light of different colors. By reasonably controlling the intensity ratio of different colors of light, a full-color display effect is achieved. For waterproof sealing, a waterproof cover 3 is fitted onto the outside of the LED bead 2, and its bottom side connector 4 is fitted to the top side of the base plate 1, providing a foundation for primary waterproofing. The sealing element 5 further enhances the sealing effect. The sealing cover 501 is fitted to the outer side of the connector 4, and the sealing ring 502 is fitted to the inner side of the connector 4. Both have an L-shaped cross-section, forming an N-shaped sealing surface between the connector 4 and the sealing element 5. This N-shaped sealing surface significantly increases the water penetration path, effectively preventing moisture from entering. Meanwhile, a sealing ring 6 is provided in the mounting groove 402 on the connector 4, and the sealing groove 503 on the side of the sealing ring 502 abuts against the sealing ring 6, further enhancing the tightness of the seal; the mating cavity 401 between the connector 4 and the waterproof cover 3, as well as the mating ring 403 on the connector 4 and the bottom of the sealing ring 502, also help to improve the sealing performance. The multiple sealing structures work together to protect the LED beads 2 from moisture corrosion. In terms of fixing and limiting, the snap-fit ​​between the limiting member 7 and the sealing member 5 ensures the stable connection of each component. The elastic plate 701 in the limiting member 7 is elastic, and the limiting protrusion 703 on its side can be compressed by the bending groove 702 and deflected when squeezed by the sealing cover 501. This makes it convenient for the limiting protrusion 703 to snap-fit ​​with the limiting groove 504 on the outer side of the sealing cover 501, and the mating surfaces of both are arc-shaped, which not only ensures the firmness of the connection, but also facilitates installation and disassembly. Furthermore, the groove 103 on the top of the base plate 1 is inserted into the bottom of the sealing cover 501, further restricting the position of the sealing element 5 and making the entire structure more stable. In terms of heat dissipation, several heat dissipation fins 102 at the bottom of the base plate 1 increase the contact area with the air. The heat generated by the LED beads 2 during operation is conducted through the base plate 1 to the heat dissipation fins 102, and then dissipated by the heat dissipation fins 102 into the surrounding environment, effectively reducing the operating temperature of the LED beads 2 and ensuring its stable operation.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A surface-mount full-color LED bead, characterized in that, Includes a base plate (1), on the top of which an LED bead (2) is fixedly connected, and on the top of which a waterproof cover (3) is fixedly installed, which is sleeved on the outside of the LED bead (2). The bottom side of the waterproof cover (3) is integrally formed with a connector (4) that fits against the top side of the base plate (1). On the top of the base plate (1), a sealing element (5) for limiting the position of the connector (4) is fixedly installed, and an N-shaped sealing surface is formed between the connector (4) and the sealing element (5). On the top of the base plate (1), several limiting elements (7) that engage with the sealing element (5) are fixedly provided. The sealing element (5) includes a sealing cover (501) that fits against the outer side of the connector (4). A sealing ring (502) that fits against the inner side of the connector (4) is fixedly provided on the top and bottom sides of the sealing cover (501). Both the connector (4) and the sealing cover (501) have an L-shaped cross section.

2. The surface-mount full-color LED bead according to claim 1, characterized in that, A mating cavity (401) is formed between the connector (4) and the waterproof cover (3), and a mating ring (403) that fits against the bottom of the sealing ring (502) is fixedly provided on the side of the connector (4) near the waterproof cover (3).

3. The surface-mount full-color LED bead according to claim 1, characterized in that, The side of the connector (4) that fits against the sealing ring (502) has an installation groove (402), and a sealing ring (6) is fixedly installed inside the installation groove (402). The side of the sealing ring (502) has a sealing groove (503) that abuts against the sealing ring (6).

4. The surface-mount full-color LED bead according to claim 1, characterized in that, The base plate (1) has several pins (101) fixedly arranged on its side, several heat dissipation fins (102) fixedly arranged on its bottom, and a groove (103) for insertion into the bottom of the sealing cover (501) is provided on the top of the base plate (1).

5. The surface-mount full-color LED bead according to claim 1, characterized in that, Each of the limiting members (7) includes an elastic plate (701), and the side of the elastic plate (701) away from the sealing cover (501) is provided with a plurality of curved grooves (702), and the side of the elastic plate (701) close to the sealing cover (501) is integrally formed with a limiting protrusion (703).

6. The surface-mount full-color LED bead according to claim 5, characterized in that, The outer side of the sealing cover (501) is provided with a plurality of limiting grooves (504) that engage with the limiting protrusions (703), and the mating surfaces of the limiting grooves (504) and the limiting protrusions (703) are both arc-shaped.

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