High-compatibility direct-current light source plate

Abstract

A high-compatibility direct-current light source plate comprises a plate body, a first direct-current conductor, a second direct-current conductor, a first light source conductor, a second light source conductor and a plurality of light sources. The first direct-current conductor is arranged on the board body and connected with the positive electrode of the rectifying circuit of the driving power supply. The second direct-current conductor is arranged on the board body and connected with the negative electrode of the rectifying circuit. The first light source conductor is arranged on the plate body and connected with the positive electrode of the constant current circuit of the driving power supply. The second light source conductor is arranged on the plate body and connected with the negative electrode of the constant current circuit of the driving power supply. The plurality of light sources are arranged on the plate body and connected with the first light source conductor and the second light source conductor.

Description

Technical Field

[0001] The invention relates to a light source board, in particular to a high-compatibility direct current light source board. Background Art

[0002] During the design process of lighting devices (such as lamp tubes) compatible with electronic ballasts on the market, it is necessary to focus on evaluating the safety of abnormal situations when the electronic ballast is in operation. Since the light source boards of existing lighting devices mostly use printed circuit boards (PCBs) or flexible printed circuit boards (FPCBs), and AC signals flow through the light source boards. Therefore, the wires (copper-clad wires) on the above two types of circuit boards are prone to short circuits due to various reasons or sparks due to scratches, which eventually lead to fires. Therefore, the safety of existing circuit boards needs to be improved.

[0003] In order to solve the above problems, some lighting devices use metal printed circuit boards with flame retardant function or double-sided metal flexible printed circuit boards. Although these circuit boards can solve the above problems to a certain extent, they will also greatly increase the cost of the lighting device. Summary of the invention

[0004] According to one embodiment of the present invention, a high-compatibility DC light source board is provided, which includes a board body, a first DC conductor, a second DC conductor, a first light source conductor, a second light source conductor and a plurality of light sources. The first DC conductor is arranged on the board body and connected to the positive pole of the rectifier circuit of the driving power supply. The second DC conductor is arranged on the board body and connected to the negative pole of the rectifier circuit. The first light source conductor is arranged on the board body and connected to the positive pole of the constant current circuit of the driving power supply. The second light source conductor is arranged on the board body and connected to the negative pole of the constant current circuit of the driving power supply. A plurality of light sources are arranged on the board body and connected to the first light source conductor and the second light source conductor.

[0005] In one embodiment, the first light source conductor and the second light source conductor are disposed between the first direct current conductor and the second direct current conductor.

[0006] In one embodiment, the first DC conductor has a first groove extending in a direction away from the center line of the plate body.

[0007] In one embodiment, the second DC conductor has a second groove extending in a direction away from the center line of the plate body.

[0008] In one embodiment, the first light source conductor has a first protrusion extending in a direction away from the center line of the plate.

[0009] In one embodiment, the second light source conductor has a second protrusion extending in a direction away from the center line of the plate.

[0010] In one embodiment, a plurality of isolation regions are provided between the first light source conductor and the second light source conductor, and the plurality of isolation regions are distributed on both sides of the plurality of light sources.

[0011] In one embodiment, the board is a soft board or a hard board.

[0012] In one embodiment, the plurality of light sources are light emitting diodes.

[0013] As described above, the high-compatibility DC light source board according to the embodiments of the present invention may have one or more of the following advantages:

[0014] (1) In one embodiment of the present invention, a DC light source board includes a board body, a first DC conductor, a second DC conductor, a first light source conductor, a second light source conductor and a plurality of light sources. The first DC conductor is disposed on the board body and connected to the positive electrode of the rectifier circuit of the driving power supply. The second DC conductor is disposed on the board body and connected to the negative electrode of the rectifier circuit. The first light source conductor is disposed on the board body and connected to the positive electrode of the constant current circuit of the driving power supply. The second light source conductor is disposed on the board body and connected to the negative electrode of the constant current circuit of the driving power supply. A plurality of light sources are disposed on the board body and connected to the first light source conductor and the second light source conductor. As can be seen from the above, the first DC conductor, the second DC conductor, the first light source conductor and the second light source conductor of the DC light source board all carry DC signals. Therefore, when the DC light source board is broken or scratched due to various reasons, the DC light source board can be transformed from a complete conductor into two equivalent capacitors formed by two electrodes with DC electric current. The above two equivalent capacitors will block the DC signal after being fully charged to prevent fire caused by temperature increase. Therefore, the safety of the DC light source board can be effectively improved without increasing the cost of the DC light source board. In addition, the DC light source board is compatible with electronic ballasts.

[0015] (2) In one embodiment of the present invention, the first light source conductor and the second light source conductor are arranged between the first DC conductor and the second DC conductor. The first DC conductor has a first groove, and the first groove extends in a direction away from the center line of the board body. The second DC conductor has a second groove, and the second groove extends in a direction away from the center line of the board body. The first light source conductor has a first convex portion, and the first convex portion extends in a direction away from the center line of the board body. The second light source conductor has a second convex portion, and the second convex portion extends in a direction away from the center line of the board body. The above-mentioned special conductor structure design can optimize the above-mentioned capacitance effect, and effectively destroy the integrity of the scratch when a scratch occurs to prevent sparks from being generated. Therefore, the safety of the DC light source board can be further improved.

[0016] (3) In one embodiment of the present invention, there are multiple isolation areas between the first light source conductor and the second light source conductor, and the multiple isolation areas are distributed on both sides of the multiple light sources. The special isolation area structure design can provide a certain barrier effect to reduce the impact on the multiple light sources when a circuit break or scratch occurs, and improve the impedance of the multiple light sources to the surrounding conductors when an abnormal state occurs. In addition, the special isolation area structure design can also make the scratches discontinuous to prevent sparks and improve the effect of blocking DC signals. Therefore, the safety of the DC light source board can be further improved.

[0017] (4) In one embodiment of the present invention, the board body of the DC light source board can be a soft board (flexible printed circuit board) or a hard board (printed circuit board). Therefore, the user can select a suitable material according to the needs of the actual application. Therefore, the DC light source board can be applied to various lighting devices, which is more flexible in use and has a wider range of applications.

[0018] (5) In one embodiment of the present invention, the DC light source board is simple in design, so the desired effect can be achieved without increasing the cost. In addition, the DC light source board can achieve high compatibility (compatible with electronic ballasts). Therefore, the DC light source board can achieve high practicality and meet the needs of different applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first schematic diagram of the structure of a high-compatibility DC light source panel according to an embodiment of the present invention.

[0020] Figure 2 This is a second schematic diagram of the structure of a high-compatibility DC light source panel according to an embodiment of the present invention.

[0021] Figure 3 It is a third schematic diagram of the structure of a high-compatibility DC light source panel according to an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 1-DC light source board; 11-board body; 12-first DC conductor; 13-second DC conductor; 14-first light source conductor; 15-second light source conductor; 16-light source; S1-first groove; S2-second groove; P1-first convex part; P2-second convex part; BA-isolation area; ML-center line of the board body.

[0024] The detailed features and advantages of the present invention are described in detail in the following embodiments, and the contents are sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. Moreover, according to the contents, claims and drawings disclosed in this specification, any person skilled in the relevant art can easily understand the purposes and advantages of the present creation. DETAILED DESCRIPTION

[0025] The following will refer to the relevant drawings to illustrate the embodiments of the high-compatibility DC light source board according to the present invention. For the sake of clarity and convenience of the diagram description, the components in the drawings may be exaggerated or reduced in size and proportion. In the following description and / or claims, when a component is referred to as "connected" or "coupled" to another component, it may be directly connected or coupled to the other component or there may be an intervening component; and when a component is referred to as "directly connected" or "directly coupled" to another component, there is no intervening component, and other words used to describe the relationship between components or layers should be interpreted in the same way. For ease of understanding, the same components in the following embodiments are illustrated with the same symbols.

[0026] See also Figure 1 , which is a first schematic diagram of the structure of a high-compatibility DC light source board according to an embodiment of the present invention. As shown in the figure, the DC light source board 1 includes a board body 11, a first DC conductor 12, a second DC conductor 13, a first light source conductor 14, a second light source conductor 15 and a plurality of light sources 16.

[0027] The first DC conductor 12 is disposed on the board 11 and connected to the positive electrode of the rectifier circuit of the driving power supply. One end of the first DC conductor 12 can be connected to the positive output terminal of the rectifier circuit of the driving power supply, and one end of the first DC conductor 12 can be connected to the positive input terminal of the rectifier circuit of the driving power supply. In one embodiment, the board 11 can be a hard board. In another embodiment, the board 11 can be a soft board.

[0028] The second DC conductor 13 is disposed on the plate 11 and connected to the negative electrode of the rectifier circuit. One end of the second DC conductor 13 can be connected to the negative output terminal of the rectifier circuit of the driving power supply, and one end of the second DC conductor 13 can be connected to the negative input terminal of the rectifier circuit of the driving power supply.

[0029] The first light source conductor 14 is disposed on the plate 11 and connected to the positive electrode of the constant current circuit of the driving power source. The first light source conductor 14 is disposed between the first DC conductor 12 and the second DC conductor 13 .

[0030] The second light source conductor 15 is disposed on the plate 11 and connected to the negative electrode of the constant current circuit of the driving power supply. The second light source conductor 15 is disposed between the first DC conductor 12 and the second DC conductor 13, and is adjacent to the first light source conductor 14. The first DC conductor 12, the second DC conductor 13, the first light source conductor 14, and the second light source conductor 15 can all be copper-clad conductors or other metal conductors.

[0031] The plurality of light sources 16 are disposed on the board 11 and connected to the first light source conductor 14 and the second light source conductor 15. The plurality of light sources 16 may be light emitting diodes (LEDs).

[0032] As can be seen from the above, the DC light source board 1 includes a board body 11, a first DC conductor 12, a second DC conductor 13, a first light source conductor 14, a second light source conductor 15 and a plurality of light sources 16. The first DC conductor 12 and the second DC conductor 13 are connected to the rectifier circuit of the driving power supply, while the first light source conductor 14 and the second light source conductor 15 are connected to the constant current circuit of the driving power supply. In this way, the DC light source board 1 can be compatible with the electronic ballast. In addition, the first DC conductor 12, the second DC conductor 13, the first light source conductor 14 and the second light source conductor 15 of the DC light source board 1 are all DC signals. Therefore, when the DC light source board 1 is broken or scratched due to various reasons, the DC light source board 1 can be changed from a complete conductor to two equivalent capacitors. The above two equivalent capacitors will block the DC signal after being fully charged to prevent fire caused by temperature increase. Therefore, the safety of the DC light source board 1 can be effectively improved without increasing the cost of the DC light source board 1.

[0033] When the existing light source board is broken or scratched, the AC signal will flow through the copper-clad wire, turning the light source board from a complete conductor into two electrodes with AC voltage. Due to the inherent capacitance effect of the AC signal, the disconnection position of the copper-clad wire forms two electrodes and a gap between the electrodes, which forms an equivalent standard capacitor. The AC signal can pass between the two electrodes, and the current at this time is determined by the capacitive reactance of the capacitor. The capacitive reactance can be expressed by the following formula (1):

[0034] Xc=1 / (2πfC)…………(1)

[0035] Where Xc represents the capacitive reactance; f represents the frequency of the AC signal; and C represents the capacity of the capacitor.

[0036] It can be seen from formula (1) that the capacitive reactance is inversely proportional to the frequency of the AC signal and the capacity of the capacitor. During the coupling process, the distance between the two electrodes is very close due to the capacitance formed between the electrodes. In the early stage, the capacitor has a low withstand voltage. When the voltage across the electrodes is high enough, visible arcing will occur. As the arcing time continues, the gap material between the electrodes will be carbonized by high temperature. After carbonization, the original gap between the electrodes is filled with carbonized material, and the capacity of the equivalent capacitor increases. According to formula (1), when the frequency of the AC signal remains unchanged, the larger the capacity of the capacitor, the smaller the capacitive reactance, so the current coupled through the equivalent capacitor increases accordingly. Therefore, the temperature between the two electrodes continues to rise, further enhancing the carbonization reaction, so the capacity of the capacitor continues to increase to form positive feedback. When the carbonization area continues to increase until the distance between the two electrodes is far enough, the withstand voltage of the equivalent capacitor continues to increase, the capacity gradually decreases, and the heat generated by the current coupled by the capacitor decreases gradually decreases until the temperature is not enough to produce an open flame or the carrier glass of the light source board burns through and cracks due to the high temperature, the entire positive feedback process is blocked.

[0037] In contrast, in the present embodiment, the first DC conductor 12, the second DC conductor 13, the first light source conductor 14 and the second light source conductor 15 of the DC light source board 1 all carry DC signals. Therefore, when the DC light source board 1 is broken or scratched due to various reasons, the DC light source board 1 can be transformed from a complete conductor into two equivalent capacitors formed by two electrodes with DC electric current. The above two equivalent capacitors will block the DC signal after being fully charged to prevent fire caused by temperature rise. Therefore, the safety of the DC light source board 1 can be effectively improved without increasing the cost of the DC light source board 1.

[0038] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the high-compatibility DC light source board 1 of this embodiment should still be included in the patent scope of the present invention.

[0039] See also Figure 2 , which is a second schematic diagram of the structure of a high-compatibility DC light source board according to an embodiment of the present invention. As shown in the figure, the first DC conductor 12 has a first groove S1, and the first groove S1 extends in a direction away from the center line ML of the board body 11. The second DC conductor 13 has a second groove S2, and the second groove S2 extends in a direction away from the center line ML of the board body 11. The first light source conductor 14 has a first protrusion P1, and the first protrusion P1 extends in a direction away from the center line ML of the board body 11. The second light source conductor 15 has a second protrusion P2, and the second protrusion P2 extends in a direction away from the center line ML of the board body.

[0040] The special conductor structure design can optimize the capacitance effect and effectively destroy the integrity of the scratches to prevent sparks from being generated when scratches occur. Therefore, the safety of the DC light source panel 1 can be further improved.

[0041] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the high-compatibility DC light source board 1 of this embodiment should still be included in the patent scope of the present invention.

[0042] In another embodiment, a plurality of isolation regions are provided between the first light source conductor 14 and the second light source conductor 15 .

[0043] It is worth mentioning that, since the light source boards of the existing lighting devices mostly use printed circuit boards (PCB) or flexible printed circuit boards (FPCB), and the light source boards have AC signals flowing. Therefore, the wires (copper-clad wires) on the above two circuit boards are prone to open circuits or sparks due to scratches due to various reasons, which eventually lead to fires. Therefore, the safety of the existing circuit boards needs to be improved. In order to solve the above problems, some lighting devices use metal printed circuit boards with flame retardant functions or double-sided metal flexible printed circuit boards. Although these circuit boards can solve the above problems to a certain extent, they will also greatly increase the cost of the lighting device. In contrast, according to an embodiment of the present invention, the DC light source board 1 includes a board body 11, a first DC conductor 12, a second DC conductor 13, a first light source conductor 14, a second light source conductor 15 and a plurality of light sources 16. The first DC conductor 12 is arranged on the board body 11 and connected to the positive pole of the rectifier circuit of the driving power supply. The second DC conductor 13 is arranged on the board body 11 and connected to the negative pole of the rectifier circuit. The first light source conductor 12 is arranged on the board body 11 and connected to the positive pole of the constant current circuit of the driving power supply. The second light source conductor 15 is arranged on the board 11 and connected to the negative pole of the constant current circuit of the driving power supply. A plurality of light sources 16 are arranged on the board 11 and connected to the first light source conductor 12 and the second light source conductor 15. As can be seen from the above, the first DC conductor 12, the second DC conductor 13, the first light source conductor 14 and the second light source conductor 15 of the DC light source board 1 all carry DC signals. Therefore, when the DC light source board 1 is broken or scratched due to various reasons, the DC light source board 1 can be transformed from a complete conductor into two equivalent capacitors formed by two electrodes with DC electricity. The above two equivalent capacitors will block the DC signal after being fully charged to prevent fire caused by temperature increase. Therefore, the safety of the DC light source board 1 can be effectively improved without increasing the cost of the DC light source board 1. In addition, the DC light source board 1 is compatible with electronic ballasts.

[0044] Furthermore, according to an embodiment of the present invention, the first light source conductor 14 and the second light source conductor 15 are arranged between the first DC conductor 12 and the second DC conductor 13. The first DC conductor 12 has a first groove S1, and the first groove S1 extends in a direction away from the center line ML of the board body. The second DC conductor has a second groove S2, and the second groove S2 extends in a direction away from the center line ML of the board body. The first light source conductor 14 has a first protrusion P1, and the first protrusion P1 extends in a direction away from the center line ML of the board body. The second light source conductor 14 has a second protrusion P2, and the second protrusion P2 extends in a direction away from the center line ML of the board body. The above-mentioned special conductor structure design can optimize the above-mentioned capacitance effect, and effectively destroy the integrity of the scratch when a scratch occurs to prevent sparks from being generated. Therefore, the safety of the DC light source board 1 can be further improved.

[0045] In addition, according to an embodiment of the present invention, there are multiple isolation areas BA between the first light source conductor 14 and the second light source conductor 15, and the multiple isolation areas BA are distributed on both sides of the multiple light sources 16. The special isolation area BA structural design can provide a certain barrier effect to reduce the impact of the multiple light sources 16 when a circuit break or scratch occurs, and improve the impedance of the multiple light sources 16 to the surrounding conductors when an abnormal state occurs. In addition, the special isolation area BA structural design can also make the scratches discontinuous to prevent sparks and improve the effect of blocking DC signals. Therefore, the safety of the DC light source board 1 can be further improved.

[0046] In addition, according to an embodiment of the present invention, the board body 11 of the DC light source board 1 can be a soft board (flexible printed circuit board) or a hard board (printed circuit board). Therefore, the user can select a suitable material according to the needs of the actual application. Therefore, the DC light source board 1 can be applied to various lighting devices, which is more flexible in use and more widely applicable.

[0047] Furthermore, according to the embodiment of the present invention, the design of the DC light source board 1 is simple, so the desired effect can be achieved without increasing the cost. In addition, the DC light source board 1 can achieve high compatibility (compatible with electronic ballasts). Therefore, the DC light source board 1 can achieve high practicality and can meet the needs of different applications. From the above, it can be seen that the high-compatibility DC light source board according to the embodiment of the present invention can indeed achieve excellent technical effects.

[0048] See also Figure 3 , which is a third schematic diagram of the structure of a high-compatibility DC light source panel according to an embodiment of the present invention. As shown in the figure, there are a plurality of isolation areas BA between the first light source conductor 14 and the second light source conductor 15, and the plurality of isolation areas BA are distributed on both sides of the plurality of light sources 1.

[0049] As can be seen from the above, in this embodiment, there are the above-mentioned multiple isolation areas BA between the first light source conductor 14 and the second light source conductor 15, and the above-mentioned multiple isolation areas are distributed on both sides of the multiple light sources 16. The above-mentioned special isolation area structure design can provide a certain barrier effect to reduce the impact on the above-mentioned multiple light sources 16 when a circuit break or scratch occurs, and improve the impedance of the above-mentioned multiple light sources 16 to the surrounding conductors when an abnormal state occurs. In addition, the above-mentioned special isolation area BA structure design can also make the scratches discontinuous to prevent sparks from occurring, and improve the effect of blocking DC signals. Therefore, the safety of the DC light source board 1 can be further improved.

[0050] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the high-compatibility DC light source board 1 of this embodiment should still be included in the patent scope of the present invention.

[0051] In summary, according to an embodiment of the present invention, the DC light source board 1 includes a board body 11, a first DC conductor 12, a second DC conductor 13, a first light source conductor 14, a second light source conductor 15 and a plurality of light sources 16. The first DC conductor 12 is disposed on the board body 11 and connected to the positive pole of the rectifier circuit of the driving power supply. The second DC conductor 13 is disposed on the board body 11 and connected to the negative pole of the rectifier circuit. The first light source conductor 12 is disposed on the board body 11 and connected to the positive pole of the constant current circuit of the driving power supply. The second light source conductor 15 is disposed on the board body 11 and connected to the negative pole of the constant current circuit of the driving power supply. A plurality of light sources 16 are disposed on the board body 11 and connected to the first light source conductor 12 and the second light source conductor 15. As can be seen from the above, the first DC conductor 12, the second DC conductor 13, the first light source conductor 14 and the second light source conductor 15 of the DC light source board 1 all carry DC signals. Therefore, when the DC light source board 1 is broken or scratched due to various reasons, the DC light source board 1 can be transformed from a complete conductor into two equivalent capacitors formed by two electrodes with DC electric current. The above two equivalent capacitors will block the DC signal after being fully charged to prevent fire caused by temperature increase. Therefore, the safety of the DC light source board 1 can be effectively improved without increasing the cost of the DC light source board 1. In addition, the DC light source board can be compatible with electronic ballasts.

[0052] Furthermore, according to an embodiment of the present invention, the first light source conductor 14 and the second light source conductor 15 are arranged between the first DC conductor 12 and the second DC conductor 13. The first DC conductor 12 has a first groove S1, and the first groove S1 extends in a direction away from the center line ML of the board body. The second DC conductor has a second groove S2, and the second groove S2 extends in a direction away from the center line ML of the board body. The first light source conductor 14 has a first protrusion P1, and the first protrusion P1 extends in a direction away from the center line ML of the board body. The second light source conductor 14 has a second protrusion P2, and the second protrusion P2 extends in a direction away from the center line ML of the board body. The above-mentioned special conductor structure design can optimize the above-mentioned capacitance effect, and effectively destroy the integrity of the scratch when a scratch occurs to prevent sparks from being generated. Therefore, the safety of the DC light source board 1 can be further improved.

[0053] In addition, according to an embodiment of the present invention, there are multiple isolation areas BA between the first light source conductor 14 and the second light source conductor 15, and the multiple isolation areas BA are distributed on both sides of the multiple light sources 16. The special isolation area BA structural design can provide a certain barrier effect to reduce the impact of the multiple light sources 16 when a circuit break or scratch occurs, and improve the impedance of the multiple light sources 16 to the surrounding conductors when an abnormal state occurs. In addition, the special isolation area BA structural design can also make the scratches discontinuous to prevent sparks from occurring, and improve the effect of blocking DC signals. Therefore, the safety of the DC light source board can be further improved.

[0054] In addition, according to an embodiment of the present invention, the board body 11 of the DC light source board 1 can be a soft board (flexible printed circuit board) or a hard board (printed circuit board). Therefore, the user can select a suitable material according to the needs of the actual application. Therefore, the DC light source board 1 can be applied to various lighting devices, which is more flexible in use and more widely applicable.

[0055] Furthermore, according to the embodiment of the present invention, the design of the DC light source board 1 is simple, so the desired effect can be achieved without increasing the cost. In addition, the DC light source board 1 can achieve high compatibility (compatible with electronic ballasts). Therefore, the DC light source board 1 can achieve high practicality and meet the needs of different applications.

[0056] It should be noted that, although the above embodiments have been described in this article, the scope of patent protection of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the patent of the present invention.

Claims

1. A high-compatibility DC light source board, characterized in that: include: plate body; A first DC conductor is disposed on the plate and connected to the positive electrode of the rectifier circuit of the driving power supply; a second DC conductor, disposed on the plate and connected to the negative electrode of the rectifier circuit; A first light source conductor is disposed on the plate and connected to the positive electrode of the constant current circuit of the driving power source; A second light source conductor is disposed on the plate and connected to the negative electrode of the constant current circuit of the driving power source; as well as A plurality of light sources are disposed on the plate and connected to the first light source conductor and the second light source conductor.

2. The high-compatibility DC light source board according to claim 1, characterized in that: The first light source conductor and the second light source conductor are disposed between the first DC conductor and the second DC conductor.

3. The high-compatibility DC light source board according to claim 1, characterized in that: The first DC conductor has a first groove, and the first groove extends in a direction away from the center line of the plate body.

4. The high-compatibility DC light source board according to claim 3, characterized in that: The second DC conductor has a second groove, and the second groove extends in a direction away from the center line of the plate body.

5. The high-compatibility DC light source board according to claim 4, characterized in that: The first light source conductor has a first protrusion, and the first protrusion extends in a direction away from the center line of the plate body.

6. The high-compatibility DC light source board according to claim 5, characterized in that: The second light source conductor has a second protrusion, and the second protrusion extends in a direction away from the center line of the plate body.

7. The high-compatibility DC light source board according to claim 1, characterized in that: A plurality of isolation regions are provided between the first light source conductor and the second light source conductor, and the plurality of isolation regions are distributed on both sides of the plurality of light sources.

8. The high-compatibility DC light source board according to claim 1, characterized in that: The board body is a soft board.

9. The high-compatibility DC light source board according to claim 1, characterized in that: The board body is a hard board.

10. The high-compatibility DC light source board according to claim 1, characterized in that: The multiple light sources are light emitting diodes.

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