Single, double, multi-light source shared LED lamp bead aging board

Abstract

This utility model discloses an LED lamp bead aging board that can be used for single, dual, and multi-light source applications, relating to the field of LED lamp bead aging technology. It includes a substrate with at least two sets of independent light source power lines arranged along its edge. Each set of power lines includes two common electrode lines and several independent drive lines. A circuit board is mounted at the center of the top of the substrate, and the circuit board has several circuit connectors. The number of circuit connectors is the same as the number of independent drive lines, and the circuit connectors are electrically connected to their corresponding independent drive lines via connecting wires. Each circuit connector is independently connected to one independent drive line. This utility model, by providing at least two sets of independent light source power lines, can simultaneously perform aging tests on single-light source, dual-light source, and multi-light source LED lamp beads, overcoming the technical deficiency of traditional aging boards that cannot simulate the simultaneous operation of multiple light sources.

Description

Technical Field

[0001] This utility model relates to the field of LED lamp bead aging technology, and in particular to an LED lamp bead aging board that can be used for single, dual, and multiple light sources. Background Technology

[0002] LED chips are widely used in the market, and their lifespan is a crucial indicator of chip quality. LED chips undergo accelerated lifespan aging tests before leaving the factory to ensure their quality. During testing, aging boards and equipment are typically used to perform these tests. Existing aging methods typically power the LED chips with rated current on an aging board and age them under different environments. This method and the aging board only power a single light source for aging. However, many dual-light source and multi-light source LED chips are available on the market. Such aging methods require individual aging of each light source, which is complex, time-consuming, and requires more aging boards and equipment. In practical applications, multiple light sources may be lit simultaneously, leading to discrepancies between the aging results and actual application conditions, potentially resulting in inaccurate aging outcomes. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an LED lamp bead aging board that can be used for single, dual, or multiple light sources, thus solving the technical problems mentioned in the background section.

[0004] To solve the above technical problems, this utility model provides the following technical solution: an LED lamp bead aging board for single, dual, and multiple light sources, including a substrate, wherein at least two sets of independent light source power lines are provided on the edge of the substrate, and each set of light source power lines includes two common electrode lines and several independent driving lines. A circuit board is installed at the center of the top of the substrate. The circuit board has a number of circuit connectors, the number of which is the same as the number of independent drive lines. The circuit connectors are electrically connected to the corresponding independent drive lines through connecting lines. Each circuit connector is independently connected to an independent drive line. A bridging structure is provided at the intersection of the connecting lines.

[0005] Furthermore, the bridging structure includes a connecting line that is broken at the crossover point, with two breakpoints formed on the broken connecting line, each of the two breakpoints having a pad, and a surface-mount resistor strip bridging the two pads.

[0006] Furthermore, the common electrode line is symmetrically distributed along the central axis of the substrate, and the independent driving line is divided into a left wiring group and a right wiring group. The two wiring groups are mirror-distributed with the common electrode line as the axis of symmetry, and the lines in each wiring group are arranged in parallel with equal spacing.

[0007] Furthermore, the substrate can be any one of a single-sided or double-sided PCB board, an aluminum substrate, or a copper substrate.

[0008] Furthermore, the common electrode circuit and the independent drive circuit of each group of light source power circuits can be distinguished by different colored insulating coatings.

[0009] By employing the above technical solution, this utility model provides an LED lamp bead aging board that can be used for single, dual, or multiple light sources, and has at least the following beneficial effects: 1. This utility model, by setting at least two sets of independent light source power lines, can simultaneously conduct aging tests on single-light source, dual-light source, and multi-light source LED beads, thus solving the technical defect of traditional aging boards that cannot simulate the simultaneous operation of multiple light sources.

[0010] 2. By setting up a bridging structure, this utility model can avoid short circuits when multiple connecting lines cross each other, and ensure signal integrity when multiple light sources are lit at the same time.

[0011] 3. The substrate in this utility model can be any one of single-sided or double-sided PCB board, aluminum substrate or copper substrate, which can age LED beads of different power. Single-sided and double-sided PCB board materials support the aging of small and medium power LED beads. Aluminum substrate has high thermal conductivity and fast heat dissipation, supporting the aging of medium and high power LED beads. Copper substrate conducts heat even faster and can support the aging of high power LED beads. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 The enlarged view of point A shown.

[0013] In the diagram: 1. Substrate; 2. Common electrode line; 3. Independent drive line; 4. Circuit board; 5. Circuit connector; 6. Connecting line; 7. Bridging structure; 71. Breakpoint; 72. Solder pad; 73. Surface mount resistor strip. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Existing aging solutions all involve powering LED beads with rated current on an aging board and aging them under different environments. This aging method and aging board both power on a single light source for aging. However, there are many dual-light source and multi-light source LED beads on the market. This type of aging method requires aging each light source separately, which is more complicated and time-consuming, and requires more aging boards and equipment. In actual applications, multiple light sources may be lit at the same time, which may lead to the aging results not matching the actual application and potentially resulting in inaccurate aging results.

[0016] To address the defects of the aforementioned aging boards during the aging process with various light sources, please refer to [link / reference needed]. Figures 1-2 This utility model provides an LED lamp bead aging board that can be used for single, dual, and multiple light sources, and can age LED lamp beads with multiple light sources to meet the aging needs of different lamp beads. The aging board uses a substrate 1 as its base. At least two sets of independent light source power lines are arranged on the edge of the substrate 1. Each set of light source power lines includes two common electrode lines 2 and several independent drive lines 3, which can be controlled independently. A circuit disk 4 is installed in the center of the top of the substrate 1. Several circuit connectors 5 are arranged on the circuit disk 4. The number of circuit connectors 5 is the same as the number of independent drive lines 3. The circuit connectors 5 are electrically connected to the corresponding independent drive lines 3 through connecting wires 6. Each circuit connector 5 is independently connected to an independent drive line 3. During testing, LED beads are connected to the circuit connectors 5 and connected to the corresponding independent drive lines 3 through the connecting wires 6. The rated current is applied to perform aging tests on the LED beads. The corresponding independent light source power lines can be selected according to the number of LED light sources. Independent light source power lines can be arranged on all four sides of the substrate 1. This allows up to four sets of light sources to be aged simultaneously. The aging board can simultaneously perform aging tests on single-light source, dual-light source, and multi-light source LED beads, solving the technical defect of traditional aging boards that cannot simulate the simultaneous operation of multiple light sources.

[0017] Because short circuits can easily occur when multiple connecting lines 6 intersect, a bridging structure 7 is provided at each intersection of several connecting lines 6 to solve this technical problem. The bridging structure 7 includes a connecting line 6 that is broken at the intersection, with two breakpoints 71 formed on the broken connecting line 6. Each breakpoint 71 has a pad 72, and a surface-mount resistor strip 73 is connected between the two pads 72. The resistor strip is surface-mount and removable for easy maintenance and debugging. The surface-mount resistor strip 73 uses a zero-ohm resistor as the bridging medium to ensure electrical continuity while avoiding short circuits when lines cross, thus ensuring signal integrity when multiple light sources are lit simultaneously.

[0018] The common electrode line 2 is symmetrically distributed along the central axis of the substrate 1. The independent drive line 3 is divided into a left wiring group and a right wiring group. The two wiring groups are mirror images of each other with the common electrode line 2 as the axis of symmetry. The lines in each wiring group are arranged in parallel with equal spacing. The symmetrical distribution of the common electrode line 2 and the mirror layout of the independent drive line 3 can ensure the consistency of the test performance of each line and improve the test accuracy.

[0019] To prevent operators from connecting the wrong wires, the common pole line 2 and the independent drive line 3 of each group of light source power lines can be distinguished by different colored insulating coatings. Different colored insulating coatings make it easier for operators to quickly identify the lines and reduce the wiring error rate.

[0020] Example 2 Since different specifications of LED chips have different power, in order for the substrate 1 to age LED chips of different power, the substrate 1 can be any one of single-sided or double-sided PCB board, aluminum substrate or copper substrate. Single-sided and double-sided PCB board materials support the aging of small and medium power LED chips, aluminum substrate has high thermal conductivity and fast heat dissipation, and supports the aging of medium and high power LED chips, while copper substrate has faster heat conduction and can support the aging of high power LED chips.

[0021] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0022] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single, double, multi-light source shared LED lamp bead aging board, comprising a substrate (1), characterized in that: The edge of the substrate (1) is provided with at least two sets of independent light source power lines, each set of light source power lines including two common pole lines (2) and several independent driving lines (3). A circuit board (4) is installed at the center of the top of the substrate (1). A number of circuit connectors (5) are provided on the circuit board (4). The number of circuit connectors (5) is the same as the number of independent drive lines (3). The circuit connectors (5) are electrically connected to the corresponding independent drive lines (3) through connecting lines (6). Each circuit connector (5) is independently connected to an independent drive line (3). A bridging structure (7) is provided at the intersection of the connecting lines (6).

2. The LED lamp bead aging board shared by single, double or multiple light sources according to claim 1, characterized in that: The bridging structure (7) includes a connecting line (6) that is disconnected at the crossover point, with two breakpoints (71) formed on the disconnected connecting line (6), each of the two breakpoints (71) having a pad (72), and a surface mount resistor strip (73) bridging the two pads (72).

3. The LED lamp bead aging board shared by single, double or multiple light sources according to claim 1, characterized in that: The common pole line (2) is symmetrically distributed along the central axis of the substrate (1). The independent driving line (3) is divided into a left wiring group and a right wiring group. The two wiring groups are mirror-distributed with the common pole line (2) as the axis of symmetry, and the lines of each wiring group are arranged in parallel with equal spacing.

4. The LED lamp bead aging board shared by single, double or multiple light sources according to claim 1, characterized in that: The substrate (1) can be any one of a single-sided or double-sided PCB board, an aluminum substrate, or a copper substrate.

5. The LED lamp bead aging board shared by single, double or multiple light sources according to claim 1, characterized in that: The common pole line (2) and the independent drive line (3) of each group of light source power lines can be distinguished by different colored insulating coatings.

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