A vertical pin LED bead bracket

Abstract

This application relates to a vertical pin LED chip holder, comprising a substrate. The top of the substrate has multiple evenly arranged supports. Each support includes two horizontal pins arranged parallel to each other vertically and a vertically bent pin at the right end of each horizontal pin. The tops of the two vertical pins are provided with solder pads. A first support rib connected to the substrate is located at the right end of one of the horizontal pins closest to the substrate, and a second support rib connected to the substrate is located at the left end of the two horizontal pins. This invention belongs to the field of LED light-emitting diode technology. It features a robust structure, is not easily deformed, and the vertical pin and double support rib design reduces the soldering offset rate to below 1%, improving stability.

Description

Technical Field

[0001] This application relates to the field of LED light-emitting diode technology, and in particular to a vertical pin lamp bead bracket. Background Technology

[0002] As the core carrier of light-emitting diodes (LEDs), the structural design of the LED chip holder directly affects the heat dissipation performance, welding stability, and production efficiency of the LED chips. Traditional LED chip holder designs have the following problems:

[0003] Poor soldering stability: Horizontal pins are prone to shifting due to thermal stress during reflow soldering, affecting pad alignment;

[0004] Insufficient structural strength: The bracket is prone to deformation during cutting or transportation, which can lead to pin breakage;

[0005] Low assembly precision: The lack of a limiting structure makes it easy for the LED beads to be misaligned during installation.

[0006] Therefore, there is an urgent need for a vertical pin LED bracket that combines high stability, efficient heat dissipation, and easy assembly. Utility Model Content

[0007] Therefore, it is necessary to provide a vertical pin LED bead bracket, the specific technical solution of which is as follows.

[0008] A vertical pin LED chip holder includes a substrate. The top of the substrate has a plurality of evenly arranged supports. Each support includes two horizontal pins arranged parallel to each other and a vertical pin bent upward at the right end of the horizontal pins. The top of the two vertical pins has pads for connecting to the positive and negative terminals of the LED chip. A first support rib connected to the substrate is provided at the right end of one of the horizontal pins near the substrate, and a second support rib connected to the substrate is provided at the left end of the two horizontal pins.

[0009] Furthermore, the length of the upper lateral pin is smaller than that of the lower lateral pin, and the top surfaces of the pads at the tips of the two vertical pins are flush.

[0010] Furthermore, the vertical pin includes a vertical segment connected to the horizontal pin, an inclined segment extending to the left at the top of the vertical segment, and a transition segment extending upward at the top of the inclined segment and connected to the pad. The inclined segments and transition segments of the two vertical pins are arranged parallel to each other.

[0011] Furthermore, the lateral pin includes a left segment and a right segment, the width of the left segment being smaller than the width of the right segment, and a middle reinforcing rib connecting the right segments of the two lateral pins.

[0012] Furthermore, a fracture groove is provided at the top of the substrate located between two adjacent supports. The left side wall of the fracture groove is connected to the first support rib, and the right side wall of the fracture groove is connected to the second support rib.

[0013] Furthermore, the opening of the fracture groove is narrower than its internal cavity.

[0014] Furthermore, the bottom end of the substrate located between two adjacent brackets is provided with a first limiting groove corresponding to the break groove, and the bottom end of the substrate located between two adjacent first limiting grooves is provided with a second limiting groove and a third limiting groove corresponding to the bracket.

[0015] Furthermore, the substrate is provided with a plurality of large grid grooves evenly arranged above the first limiting groove, the second limiting groove and the third limiting groove.

[0016] Furthermore, a small grid groove is provided between two adjacent large grid grooves.

[0017] Furthermore, the bottom of the substrate is provided with an encoding hole located between two adjacent large grid grooves, and the encoding hole is arranged directly below the small grid groove.

[0018] Compared with existing technologies, this utility model has the following beneficial effects:

[0019] The vertical pin LED bead bracket of this utility model has a robust structure that is not easily deformed. The vertical pin and double support rib design reduces the welding offset rate to below 1%, improving stability. The grid groove and vertical pin work together to dissipate heat, reducing the junction temperature by 15°C. The bending strength of the intermediate reinforcing rib and segmented pin structure reaches 50N / mm². The design of the limiting groove and coding hole is used to automatically position the bracket during LED bead installation, realizing fully automated assembly with a yield rate of 99.5%. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural front view of the vertical pin LED bead bracket of this utility model;

[0022] Figure 2 This is a partial enlarged schematic diagram of the vertical pin LED bead bracket of this utility model;

[0023] Figure 3 This is a magnified top view of a portion of the vertical pin LED bead bracket of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Substrate; 2. Support; 3. Horizontal pin; 4. Vertical pin; 5. Pad; 6. First support rib; 7. Second support rib; 8. Vertical section; 9. Inclined section; 10. Transition section; 11. Left section; 12. Right section; 13. Middle reinforcing rib; 14. Cut groove; 15. First limiting groove; 16. Second limiting groove; 17. Third limiting groove; 18. Large grid groove; 19. Small grid groove; 20. Encoding hole. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] Reference Figures 1-3 As shown, this embodiment provides a vertical pin LED bead bracket, including a substrate 1. The top of the substrate 1 is provided with a plurality of evenly arranged brackets 2. The brackets are formed by stamping at the top of the substrate. Each bracket 2 includes two horizontal pins 3 arranged in parallel vertically and a vertical pin 4 bent upward at the right end of the horizontal pins 3. There is a cavity between the horizontal pins 3 and the substrate 1 body. The top ends of the two vertical pins 4 are provided with pads 5. The two pads 5 are used to connect with the positive and negative terminals of the LED chip. The right end of one of the horizontal pins 3 near the substrate 1 is provided with a first support rib 6 connected to the substrate 1. The left ends of the two horizontal pins 3 are provided with a second support rib 7 connected to the substrate 1.

[0029] In this embodiment, a plurality of evenly arranged supports 2 are provided at the top of the substrate 1. The supports include horizontal pins 3 parallel to the top and vertical pins 4 bent upward at the right end. A pad 5 is provided at the top of the vertical pin. By designing the vertical pins, the length of the vertical pins 4 is shortened, the longitudinal distance occupied by the pins is reduced, which facilitates the installation of LEDs, reduces the design size of the device, makes the internal structure of the device more compact, shortens the current path, and reduces resistance heat. The top surface of the pad is flush to ensure welding consistency. The current conduction path is optimized to improve welding accuracy. The vertical pins directly support the pads, reducing stress concentration caused by horizontal extension. The welding yield is improved by 15%, and the resistance is reduced by 10%.

[0030] The right end of the horizontal pin 3 is provided with a first support rib 6 and the left end is provided with a second support rib 7, which are connected to the substrate 1; the double support ribs form a triangular stable structure to resist cutting stress; enhance the pin's resistance to deformation; the support ribs disperse the force on the pin and prevent bending and breakage; the bending strength of the bracket is increased by 20%.

[0031] Specifically, the length of the upper horizontal pin 3 is smaller than that of the lower horizontal pin 3, and the top surfaces of the pads 5 at the top of the two vertical pins 4 are flush.

[0032] Specifically, the vertical pin 4 includes a vertical segment 8 connected to the horizontal pin 3, an inclined segment 9 extending to the left at the top of the vertical segment 8, and a transition segment 10 extending upward at the top of the inclined segment 9 and connected to the pad 5. The inclined segments 9 and the transition segment 10 of the two vertical pins 4 are arranged parallel to each other.

[0033] Specifically, the lateral pin 3 includes a left segment 11 and a right segment 12. The width of the left segment 11 is smaller than the width of the right segment 12. A chamfer structure is provided between the left segment 11 and the right segment 12. A middle reinforcing rib 13 connects the two right segments 12 of the lateral pin 3. In this embodiment, the vertical pin 4 is divided into a vertical segment 8, an inclined segment 9, and a transition segment 10. The inclined segments are arranged in parallel. The inclined segments provide elastic buffering, and the transition segments ensure that the pads are horizontally aligned. They absorb thermal expansion and contraction stress, preventing the pads from cracking. The deformation of the inclined segments offsets thermal stress, and the transition segments maintain the position of the pads. The thermal cycle life is extended to more than 5000 cycles.

[0034] Specifically, a fracture groove 14 is provided at the top of the base plate 1 located between two adjacent supports 2. The groove wall on the left side of the fracture groove 14 is connected to the first support rib 6, and the groove wall on the right side of the fracture groove 14 is connected to the second support rib 7.

[0035] Specifically, the opening of the break groove 14 is narrower than its internal cavity, so that when the bracket is installing LED beads, the bracket can be positioned by engaging the break groove 14 with the locking block.

[0036] Specifically, the bottom end of the substrate 1 located between two adjacent brackets 2 is provided with a first limiting groove 15 corresponding to the break groove 14, and the bottom end of the substrate 1 located between two adjacent first limiting grooves 15 is provided with a second limiting groove 16 and a third limiting groove 17 corresponding to the bracket 2. In this embodiment, the top end of the substrate 1 is provided with a break groove 14, and the bottom end corresponds to the first limiting groove 15, the second limiting groove 16, and the third limiting groove 17; the limiting groove is precisely used to position the bracket, realizing rapid installation of the lamp beads; the limiting groove cooperates with the equipment fixture, and the break groove releases thermal stress; the assembly efficiency is improved by 30%, and the heat dissipation area is increased by 25%.

[0037] Specifically, a plurality of large grid grooves 18 are evenly arranged on the substrate 1, and the plurality of large grid grooves 18 are arranged directly above the first limiting groove 15, the second limiting groove 16 and the third limiting groove 17.

[0038] Specifically, a small grid groove 19 is provided between two adjacent large grid grooves 18.

[0039] Specifically, the bottom of the substrate 1 is provided with an encoding hole 20 between two adjacent large grid grooves 18, and the encoding hole 20 is arranged directly below the small grid groove 19.

[0040] In this embodiment, the substrate 1 is provided with a large grid groove 18, a small grid groove 19 and an encoding hole 20; the grid groove increases the heat dissipation surface area, and the encoding hole enables automated identification; heat dissipation and intelligent production are improved; air convection passes through the grid groove, and the encoding hole is read by the sensor; the temperature can be reduced by 8°C and the production efficiency can be increased by 20%.

[0041] Usage process:

[0042] LED chip installation: Place the positive and negative terminals of the LED chip on the two pads 5 respectively;

[0043] Soldering and fixing: The LED chip is soldered and fixed to the pad 5 using a reflow soldering process;

[0044] Heat dissipation and positioning: Heat is conducted to substrate 1 through vertical pin 4 and horizontal pin 3; grid groove 18 enhances heat dissipation efficiency; first limiting groove 15, second limiting groove 16, and third limiting groove 17 ensure precise docking between the bracket and external equipment;

[0045] Finally, by cutting the first support rib 6, the second support rib 7, and the middle reinforcing rib 13 with a shearing device, the bracket 2 can be separated from the substrate 1 to obtain the LED lamp bead pins, which are set perpendicular to the lamp beads.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments only illustrate one or more implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vertical pin LED bead bracket, comprising a substrate (1), characterized in that, The top of the substrate (1) is provided with a plurality of evenly arranged supports (2). Each support (2) includes two horizontal pins (3) arranged in parallel from top to bottom and a vertical pin (4) bent upward at the right end of the horizontal pin (3). The top of the two vertical pins (4) is provided with pads (5). The two pads (5) are used to connect with the positive and negative terminals of the LED chip. The right end of one of the horizontal pins (3) near the substrate (1) is provided with a first support rib (6) connected to the substrate (1). The left end of the two horizontal pins (3) is provided with a second support rib (7) connected to the substrate (1).

2. The vertical pin LED bead bracket according to claim 1, characterized in that, The length of the upper horizontal pin (3) is smaller than that of the lower horizontal pin (3), and the top surfaces of the pads (5) at the top of the two vertical pins (4) are flush.

3. A vertical pin LED bead bracket according to claim 2, characterized in that, The vertical pin (4) includes a vertical segment (8) connected to the horizontal pin (3), an inclined segment (9) extending to the left at the top of the vertical segment (8), and a transition segment (10) extending upward at the top of the inclined segment (9) and connected to the pad (5). The inclined segments (9) and the transition segment (10) of the two vertical pins (4) are arranged parallel to each other.

4. A vertical pin LED bead bracket according to claim 3, characterized in that, The horizontal pin (3) includes a left segment (11) and a right segment (12). The width of the left segment (11) is smaller than that of the right segment (12). A middle reinforcing rib (13) connects the right segments (12) of the two horizontal pins (3).

5. A vertical pin LED bead bracket according to any one of claims 1-4, characterized in that, The top of the substrate (1) located between two adjacent supports (2) is provided with a break groove (14). The left side of the break groove (14) is connected to the first support rib (6), and the right side of the break groove (14) is connected to the second support rib (7).

6. A vertical pin LED bead bracket according to claim 5, characterized in that, The opening of the fracture groove (14) is narrower than its internal cavity.

7. A vertical pin LED bead bracket according to claim 5, characterized in that, The bottom end of the substrate (1) located between two adjacent brackets (2) is provided with a first limiting groove (15) corresponding to the break groove (14), and the bottom end of the substrate (1) located between two adjacent first limiting grooves (15) is provided with a second limiting groove (16) and a third limiting groove (17) corresponding to the bracket (2).

8. A vertical pin LED bead bracket according to claim 7, characterized in that, The substrate (1) is provided with a plurality of large grid grooves (18) evenly arranged, and the plurality of large grid grooves (18) are arranged directly above the first limiting groove (15), the second limiting groove (16) and the third limiting groove (17).

9. A vertical pin LED bead bracket according to claim 8, characterized in that, A small grid groove (19) is provided between two adjacent large grid grooves (18).

10. A vertical pin LED bead bracket according to claim 9, characterized in that, The bottom of the substrate (1) is provided with an encoding hole (20) between two adjacent large grid grooves (18), and the encoding hole (20) is arranged directly below the small grid groove (19).

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