Multi-color LED lamp bead convenient to weld and connect

Abstract

The utility model provides a multicolor LED lamp bead convenient to weld and connect, and belongs to the technical field of LED lamp beads. Comprising a lamp bead body, the bottom of the lamp bead body is fixedly connected with a positive electrode pin and a negative electrode pin, the positive electrode pin and the negative electrode pin are each provided with a limiting mechanism, each limiting mechanism comprises a first circular ring arranged on the positive electrode pin and the negative electrode pin in a sleeving mode, and the bottom of each first circular ring is fixedly connected with a plurality of connecting strips. According to the utility model, through the arrangement of the limiting mechanism, when the circuit board is turned over for welding, the circuit board abuts against the baffle plate, so that the circuit board is limited and cannot be separated, the positive electrode pin and the negative electrode pin cannot fall out of the mounting hole, the limiting force on the circuit board is strengthened, and the welding stability is ensured; meanwhile, the first circular ring can drive the connecting strip, the second circular ring and the baffle to slide on the positive electrode pin and the negative electrode pin, the sliding path is limited by the protruding block, and therefore the welding position of the baffle is adjusted according to needs during welding.

Description

Technical Field

[0001] This utility model relates to the field of LED lamp bead technology, and in particular to a multi-color LED lamp bead that is easy to weld and connect. Background Technology

[0002] LED beads are light-emitting diodes that can emit multiple colors. Color changes are achieved by combining chips of different colors. By precisely adjusting the current ratio of the RGB three colors, it can display more than a million colors and support dynamic gradient effects. LED beads are widely used in public areas such as advertising light boxes, traffic lights and stage lighting. Because a single LED bead can achieve multi-color display, it can meet diverse needs from basic indication to full-color dynamic display.

[0003] In the existing patent application CN219892199U, the limiting spring is used to clamp the PCB board between the limiting baffle and the limiting cylinder even when the PCB board is flipped, thereby preventing the LED pins from coming out of the mounting hole or moving around in the mounting hole and affecting the normal soldering and installation of the LED. However, the limiting spring, which can deform, has poor limiting force on the PCB board. Under the influence of the weight of the LED after being flipped, it is easy to deform inward and thus come out of the mounting hole. Therefore, this application provides a multi-color LED that is easy to solder and connect to meet the requirements. Utility Model Content

[0004] The technical problem this utility model aims to solve is to provide a multi-color LED bead that is easy to weld and connect, in order to address the problem in the existing patented publication CN219892199U, where the limiting spring is used to clamp the PCB board between the limiting baffle and the limiting cylinder even when the PCB board is flipped, thus preventing the LED bead pins from coming out of the mounting hole or moving around in the mounting hole and affecting the normal welding and installation of the LED bead. However, the limiting spring, which is deformable, has poor limiting force on the PCB board and is easily deformed inward by the weight of the LED bead after it is flipped, thus still coming out of the mounting hole.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A multi-color LED bead that is easy to weld and connect includes a bead body. A positive electrode pin and a negative electrode pin are fixedly connected to the bottom of the bead body. A limiting mechanism is provided on both the positive electrode pin and the negative electrode pin. The limiting mechanism includes a first ring sleeved on the positive electrode pin and the negative electrode pin. Multiple connecting strips are fixedly connected to the bottom of the first ring. The bottom of each connecting strip is fixedly connected to the same second ring. Multiple baffles are rotatably connected to the second ring. The baffles can fit against the positive electrode pin and the negative electrode pin. The top end of each baffle extends in an inclined angle in a direction away from each other. The first ring, the connecting strips, the second ring, and the baffles are all made of copper.

[0007] Preferably, the weight of the bottom of the baffle is greater than the weight of the top of the baffle.

[0008] Preferably, the bottom of the baffle and the connecting strip are both adapted to the mounting holes of the circuit board to be soldered.

[0009] Preferably, both the positive electrode pin and the negative electrode pin have outwardly protruding bumps fixedly connected to their bottoms.

[0010] Preferably, a protective shell is provided at the bottom of the lamp bead body, the protective shell is penetrated by the positive electrode pin and the negative electrode pin, the interior of the protective shell is provided with thermal grease, a thermal plate is installed on the bottom inner wall of the protective shell, and a plurality of thermal strips are fixedly connected to the outer wall of the thermal plate, with the end of the thermal strip away from the thermal plate extending outward through the protective shell.

[0011] Preferably, a heat insulation plate is fixedly connected to the bottom of the protective shell to separate the protective shell from the circuit board to be welded.

[0012] Compared with the prior art, this utility model has at least the following beneficial effects:

[0013] In the above scheme, by setting a limiting mechanism, when the lamp body needs to be soldered onto the circuit board to be soldered, the positive and negative pins are first inserted into the mounting holes on the circuit board. Since the bottom of the baffle and the connecting strip are adapted to the mounting holes on the circuit board, the bottom of the baffle can be inserted into the mounting holes along with the positive and negative pins. When the second ring is also inserted into the mounting hole, the upper half of the baffle, which extends into an inclined angle, will abut against the circuit board. As the positive and negative pins continue to move, the baffle will rotate around the center of the second ring, so that the upper half of the baffle gradually rotates towards the center until it is in contact with the positive and negative pins. The lower half of the baffle gradually moves away from the positive and negative pins, and the upper half of the baffle is in contact with the positive and negative pins. Then it can pass through the mounting holes on the circuit board. After the upper half of the baffle has completely passed through, it will rotate back to its original position due to the weight of the bottom of the baffle, so that the circuit board is stuck on the connecting strip between the first ring and the baffle. At this time, the circuit board can be flipped over to solder the positive pin, negative pin and the baffle, so that the lamp body is soldered to the circuit board. The advantage of doing this is that when the circuit board is flipped over for soldering, it will abut against the baffle and be limited so that the circuit board will not fall out of the mounting holes, thus strengthening the limiting force on the circuit board and ensuring the stability of the soldering. At the same time, the first ring can drive the connecting strip, the second ring and the baffle to slide on the positive pin and the negative pin. The sliding path is limited by the protrusion, so the position of the baffle can be adjusted as needed during soldering.

[0014] By setting up heat-conducting plates and heat-conducting strips, when the LED bead body is soldered and in operation, the heat generated by the LED bead body during operation will be transferred to the heat-conducting plate by the heat-conducting grease. The heat-conducting plate will then transfer the heat to the end of the heat-conducting strip that extends out of the protective shell through the heat-conducting strip. This allows the heat to be discharged from the inside of the protective shell through the layer-by-layer transfer, ensuring that the heat can be dissipated in time. In addition, the heat insulation plate separates the protective shell from the circuit board to be soldered, ensuring that the heat generated by the LED bead body will not affect the operation of the circuit board. Attached Figure Description

[0015] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of multi-color LED beads for easy welding connection;

[0017] Figure 2 A partial cross-sectional view of the multi-color LED beads for easy welding connection;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the limiting mechanism.

[0019] [Figure Labels]

[0020] 1. LED body; 2. Positive pin; 3. Negative pin; 4. Limiting mechanism; 41. Ring 1; 42. Connecting strip; 43. Ring 2; 44. Baffle; 5. Protrusion; 6. Protective shell; 7. Thermal grease; 8. Heat-conducting plate; 9. Heat-conducting strip; 10. Heat insulation plate.

[0021] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0022] The following is a detailed description of a multi-color LED bead that is easy to weld and connect, provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0023] like Figures 1-3 As shown, an embodiment of this utility model provides a multi-color LED bead that is easy to weld and connect, including a bead body 1. A positive electrode pin 2 and a negative electrode pin 3 are fixedly connected to the bottom of the bead body 1. A limiting mechanism 4 is provided on both the positive electrode pin 2 and the negative electrode pin 3. The limiting mechanism 4 includes a first ring 41 sleeved on the positive electrode pin 2 and the negative electrode pin 3. Multiple connecting strips 42 are fixedly connected to the bottom of the first ring 41. The bottoms of all connecting strips 42 are fixedly connected to the same second ring 43. Multiple baffles 44 are rotatably connected. The baffles 44 can fit with the positive electrode pin 2 and the negative electrode pin 3. The top end of the baffles 44 extends in an inclined angle in a direction away from each other. The first ring 41, the connecting strip 42, the second ring 43 and the baffles 44 are all made of copper. The bottom of the baffles 44 is heavier than the top of the baffles 44. The bottom of the baffles 44 and the connecting strip 42 are adapted to the mounting holes of the circuit board to be soldered. The bottom of the positive electrode pin 2 and the negative electrode pin 3 are fixedly connected with outward protrusions 5.

[0024] By setting a limiting mechanism 4, when the lamp body 1 needs to be soldered onto the circuit board to be soldered, the positive electrode pin 2 and the negative electrode pin 3 are first inserted into the mounting holes on the circuit board to be soldered. Since the bottom of the baffle 44 and the connecting strip 42 are adapted to the mounting holes of the circuit board to be soldered, the bottom of the baffle 44 can be inserted into the mounting holes along with the positive electrode pin 2 and the negative electrode pin 3. When the second ring 43 is also inserted into the mounting hole, the upper half of the baffle 44, which extends into an inclined angle, will abut against the circuit board. As the positive electrode pin 2 and the negative electrode pin 3 continue to move, the baffle 44 will rotate around the center of the second ring 43, so that the upper half of the baffle 44 gradually rotates towards the center until it is in contact with the positive electrode pin 2 and the negative electrode pin 3. The lower half of the baffle 44 gradually moves away from the positive electrode pin 2 and the negative electrode pin 3. After the upper half of the baffle 44 is in contact with the positive electrode pin 2 and the negative electrode pin 3, it will... It can also pass through the mounting holes on the circuit board. When the upper half of the baffle 44 is completely passed through, it will rotate back to its original position due to the weight of the bottom of the baffle 44, so that the circuit board is stuck on the connecting strip 42 between the ring 41 and the baffle 44. At this time, the circuit board can be flipped over to solder the positive pin 2, the negative pin 3 and the baffle 44, so that the lamp body 1 is soldered to the circuit board. The advantage of doing this is that when the circuit board is flipped over for soldering, it will abut against the baffle 44, so that the circuit board is limited and will not fall off, so that the positive pin 2 and the negative pin 3 will not fall out of the mounting holes, which strengthens the limiting force on the circuit board and ensures the stability of the soldering. At the same time, the ring 41 can drive the connecting strip 42, the ring 43 and the baffle 44 to slide on the positive pin 2 and the negative pin 3. The sliding path is limited by the protrusion 5, so the position of the baffle 44 can be adjusted as needed during soldering.

[0025] like Figure 1 and Figure 2 As shown, a protective shell 6 is provided at the bottom of the lamp bead body 1. The protective shell 6 is penetrated by the positive electrode pin 2 and the negative electrode pin 3. Thermal grease 7 is provided inside the protective shell 6. A heat-conducting plate 8 is installed on the bottom inner wall of the protective shell 6. Multiple heat-conducting strips 9 are fixedly connected to the outer wall of the heat-conducting plate 8. The end of the heat-conducting strip 9 away from the heat-conducting plate 8 extends outward through the protective shell 6. A heat insulation plate 10 is fixedly connected to the bottom of the protective shell 6 to separate the protective shell 6 from the circuit board to be soldered.

[0026] By setting up the heat-conducting plate 8 and the heat-conducting strip 9, when the lamp bead body 1 is soldered and in operation, the heat generated by the lamp bead body 1 during operation will be transferred to the heat-conducting plate 8 by the heat-conducting grease 7. The heat-conducting plate 8 will then transfer the heat to one end of the heat-conducting strip 9 that extends out of the protective shell 6 through the heat-conducting strip 9. This allows the heat to be discharged from the inside of the protective shell 6 through the layer-by-layer transfer, ensuring that the heat can be dissipated in time. In addition, the heat insulation plate 10 separates the protective shell 6 from the circuit board to be soldered, ensuring that the heat generated by the lamp bead body 1 will not affect the operation of the circuit board.

[0027] The technical solution provided by this utility model, by setting a limiting mechanism 4, when it is necessary to weld the lamp bead body 1 to the circuit board to be welded, first insert the positive electrode pin 2 and the negative electrode pin 3 into the mounting hole on the circuit board to be welded. Since the bottom of the baffle 44 and the connecting strip 42 are adapted to the mounting hole of the circuit board to be welded, the bottom of the baffle 44 can be inserted into the mounting hole along with the positive electrode pin 2 and the negative electrode pin 3. When the second ring 43 is also inserted into the mounting hole, the upper half of the baffle 44, which extends into an inclined angle, will abut against the circuit board. As the positive electrode pin 2 and the negative electrode pin 3 continue to move, the baffle 44 will rotate around the center of the second ring 43, so that the upper half of the baffle 44 gradually rotates towards the center until it is in contact with the positive electrode pin 2 and the negative electrode pin 3, and the lower half of the baffle 44 gradually moves away from the positive electrode pin 2 and the negative electrode pin 3. After pin 3 is attached, it can pass through the mounting hole on the circuit board. When the upper half of the baffle 44 is completely passed through, it will rotate back to its original position due to the weight of the bottom of the baffle 44, so that the circuit board is stuck on the connecting strip 42 between the ring 41 and the baffle 44. At this time, the circuit board can be flipped over to solder the positive pin 2, the negative pin 3 and the baffle 44, so that the lamp body 1 is soldered to the circuit board. The advantage of doing this is that when the circuit board is flipped over for soldering, it will abut against the baffle 44, which will limit the circuit board and prevent it from falling off, so that the positive pin 2 and the negative pin 3 will not fall out of the mounting hole, which strengthens the limiting force on the circuit board and ensures the stability of the soldering. At the same time, the ring 41 can drive the connecting strip 42, the ring 43 and the baffle 44 to slide on the positive pin 2 and the negative pin 3. The sliding path is limited by the protrusion 5, so the position of the baffle 44 can be adjusted as needed during soldering.

[0028] By setting up the heat-conducting plate 8 and the heat-conducting strip 9, when the lamp bead body 1 is soldered and in operation, the heat generated by the lamp bead body 1 during operation will be transferred to the heat-conducting plate 8 by the heat-conducting grease 7. The heat-conducting plate 8 will then transfer the heat to one end of the heat-conducting strip 9 that extends out of the protective shell 6 through the heat-conducting strip 9. This allows the heat to be discharged from the inside of the protective shell 6 through the layer-by-layer transfer, ensuring that the heat can be dissipated in time. In addition, the heat insulation plate 10 separates the protective shell 6 from the circuit board to be soldered, ensuring that the heat generated by the lamp bead body 1 will not affect the operation of the circuit board.

[0029] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0030] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-color LED bead that is easy to weld and connect, characterized in that, include: The lamp bead body (1) has a positive electrode pin (2) and a negative electrode pin (3) fixedly connected to its bottom. Both the positive electrode pin (2) and the negative electrode pin (3) are provided with a limit mechanism (4). The limiting mechanism (4) includes a first ring (41) sleeved on the positive electrode pin (2) and the negative electrode pin (3). The bottom of the first ring (41) is fixedly connected to a plurality of connecting strips (42). The bottom of each connecting strip (42) is fixedly connected to the same second ring (43). A plurality of baffles (44) are rotatably connected to the second ring (43). The baffles (44) can fit against the positive electrode pin (2) and the negative electrode pin (3). The top end of the baffles (44) extends in an inclined angle in a direction away from each other. The first ring (41), the connecting strips (42), the second ring (43) and the baffles (44) are all made of copper.

2. The multi-color LED lamp bead with convenient welding connection according to claim 1, characterized in that, The bottom weight of the baffle (44) is greater than the top weight of the baffle (44).

3. The multi-color LED lamp bead with convenient welding connection according to claim 1, characterized in that, The bottom of the baffle (44) and the connecting strip (42) are both adapted to the mounting holes of the circuit board to be soldered.

4. The multi-color LED lamp bead with convenient welding connection according to claim 1, characterized in that, Both the bottom of the positive electrode pin (2) and the negative electrode pin (3) are fixedly connected with outward protrusions (5).

5. The multi-color LED lamp bead with convenient welding connection according to claim 1, characterized in that, The bottom of the lamp bead body (1) is provided with a protective shell (6), which is penetrated by the positive electrode pin (2) and the negative electrode pin (3). The interior of the protective shell (6) is provided with thermal grease (7), and a heat-conducting plate (8) is installed on the bottom inner wall of the protective shell (6). Multiple heat-conducting strips (9) are fixedly connected to the outer wall of the heat-conducting plate (8). The end of the heat-conducting strip (9) away from the heat-conducting plate (8) extends outward through the protective shell (6).

6. The multi-color LED lamp bead with convenient welding connection according to claim 5, characterized in that, The bottom of the protective shell (6) is fixedly connected to a heat insulation plate (10) that can separate the protective shell (6) from the circuit board to be welded.

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