LED display light bar
By setting the conductive bar and protruding part on the back of the lineboard of the LED light bar, the problem of insufficient current power supply lines is solved, and the color consistency consistency and brightness of the LED display lamp bar are realized.
Patent Information
- Application Number
- CN202411857006.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-01-24
AI Technical Summary
When the existing LED light strips shrink the spacing and increase the length, the overcurrent capacity of the power supply line is insufficient, resulting in a weakening of the luminous intensity of the remote LED light emitting body, resulting in uneven color and brightness.
By setting conductive strips on the back of the circuit board, and setting protrusions on the conductive strips, which are embedded in the via holes on the circuit board, electrical connection with the circuit board is achieved, and the cross-sectional size of the conductive strips is avoided from being limited by the size of the circuit board. question.
It is possible to adjust the cross-sectional size of the conductive strip as needed to meet the excessive current demand, avoid the phenomenon of voltage attenuation, and ensure the color consistency and brightness uniformity of the LED display light strip.
Smart Images
Figure CN119360750A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of LED display, and in particular to an LED display light bar. Background Art
[0002] LED light strips are widely used in decorative lighting scenarios such as shopping malls, hotels, and restaurants because of their strong design flexibility. Multiple light strips can be flexibly combined to form an LED display screen, and can be expanded according to installation requirements of different sizes.
[0003] In the prior art, in order to improve the display effect and achieve a higher pixel density, the spacing between LED light strips is usually reduced. To this end, the size of the LED light strip and its internal circuit board also needs to be reduced accordingly. However, this reduction will limit the wiring space of the power supply line, thereby limiting the overcurrent capacity of the line, resulting in a weakening of the luminous intensity at the far end of the display screen. Moreover, in order to achieve a larger LED display screen, the length of the LED light strip also needs to be increased accordingly. Too long a line will also cause voltage attenuation, resulting in uneven color and brightness. Summary of the invention
[0004] Based on this, the present application discloses an LED display light bar, comprising a housing, wherein the housing is further provided with: A circuit board and a conductive strip for power supply, wherein a plurality of via groups are regularly arranged on the circuit board; The circuit board is provided with LED illuminants on both adjacent sides of the via hole group; The front side of the conductive strip is provided with a plurality of protrusions in an integral and regular pattern. The conductive strip is provided on the back side of the circuit board, and the protrusions are embedded upwardly into the via group.
[0005] In a possible implementation, the conductive strip includes a first conductive strip and a second conductive strip, the via group includes a first via and a second via, and the protrusion includes a first protrusion and a second protrusion; The front sides of the first conductive strip and the second conductive strip are respectively and regularly provided with a plurality of first protrusions and second protrusions. The first conductive strip and the second conductive strip are arranged on the back side of the circuit board. The first protrusions and the second protrusions are respectively embedded upward into the first via holes and the second via holes.
[0006] In a possible implementation, the circuit board also includes a first branch line and a second branch line, wherein the first ends of the first branch line and the second branch line are electrically connected to the first protrusion and the second protrusion embedded in the first via hole and the second via hole, respectively, and the second ends are electrically connected to the LED light-emitting body adjacent to the first via hole and the second via hole.
[0007] In a possible implementation manner, at least one LED light-emitting body is disposed between every two adjacent via hole groups.
[0008] In a possible implementation, a glue sealing filling layer is further provided in the housing, and the glue sealing filling layer seals the circuit board, the first conductive strip, and the second conductive strip in the housing.
[0009] In a possible implementation, the light-emitting surface of the LED light-emitting body exposes the glue sealing filling layer.
[0010] In a possible implementation, an insulating portion is provided between the circuit board and the housing, and the insulating portion is used to isolate the first conductive strip from the second conductive strip, and the first conductive strip, the second conductive strip and the housing.
[0011] In a possible implementation, the circuit board further includes a signal line, and the signal line is electrically connected to the LED light-emitting body.
[0012] In a possible implementation, the circuit board is a rigid board.
[0013] In the present application, the first conductive strip and the second conductive strip for power supply are arranged on the back of the circuit board, rather than arranging the power supply line inside the circuit board, so that the cross-sectional dimensions of the first conductive strip and the second conductive strip are no longer limited by the dimensions of the circuit board. In this way, the cross-sectional dimensions of the conductive strip can be adjusted as needed to meet the demand for excessive current, thereby avoiding the voltage attenuation phenomenon of the remote LED light source and ensuring the color consistency of the LED display light bar. Moreover, the present application realizes electrical connection with the circuit board by arranging the first protrusion and the second protrusion on the first conductive strip and the second conductive strip, and embedding the first protrusion and the second protrusion into the via hole on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] in: Figure 1 is a schematic diagram of an LED display light bar excluding a housing provided by an embodiment of the present application; Figure 2 is a schematic diagram of a housing provided in one embodiment of the present application; Figure 3 is a schematic diagram of a first conductive strip and a second conductive strip provided in an embodiment of the present application; Figure 4 is a schematic diagram of an LED display light bar provided in an embodiment of the present application; Figure 5 is a schematic diagram of another LED display light bar provided in an embodiment of the present application; Figure 6 is a schematic diagram of an LED display light bar provided in an embodiment of the present application; Figure 7 It is a schematic diagram of another LED display light bar provided in an embodiment of the present application. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] As mentioned in the background technology, in the prior art, in order to improve the display effect and achieve a higher pixel density, the spacing between LED light strips is usually reduced. When the spacing between the LED light strips is reduced to a certain extent, in order to further reduce the distance between the LED lamp beads, the size of the LED light strip and its internal circuit board 1 also needs to be reduced accordingly. However, this reduction will limit the wiring space of the power supply line, thereby limiting the overcurrent capacity of the line, resulting in a weakening of the luminous intensity of the remote LED, and then causing uneven color and brightness. Moreover, in order to achieve a longer LED display screen, the length of the LED light strip also needs to be lengthened, and an overly long line will also cause voltage attenuation.
[0018] In view of this, the present application discloses an LED display light bar, which can realize power supply at the remote end of the light bar.
[0019] The LED display light bar includes a housing 5, characterized in that the housing 5 is further provided with: a circuit board 1 and a conductive strip for power supply, the circuit board is regularly provided with a plurality of via groups 10; the circuit board is provided with LED illuminants 4 on both sides adjacent to the via groups 10; the front of the conductive strip is regularly provided with a plurality of protrusions, the conductive strip is provided on the back of the circuit board 1, and the protrusions are upwardly embedded in the via groups 10. The circuit board 1 is preferably a hard plate.
[0020] Among them, Figure 2 As shown, the housing 5 may be a U-shaped housing.
[0021] Further, the conductive strip includes a first conductive strip 2 and a second conductive strip 3, the via group includes a first via 11 and a second via 12, and the protrusion includes a first protrusion 123 and a second protrusion 124; like Figure 6 , Figure 7 As shown, the LED display light strip includes a shell 5, a circuit board 1, a first conductive strip 2 and a second conductive strip 3 are all arranged in the shell 5, and an LED light-emitting body 4 is also arranged on the circuit board. The light-emitting surface direction of the LED light-emitting body 4 on the circuit board 1 is consistent with the opening direction of the shell 5, and the first conductive strip 2 and the second conductive strip 3 are used to supply power to the LED light-emitting body 4.
[0022] like Figure 1 As shown, the circuit board 1 is regularly provided with a plurality of via groups 10. The circuit board 1 is provided with a plurality of via groups 10 ( Figure 1 The via hole group 10 is marked with a dotted line in the figure. The LED light emitters 4 are arranged on both sides of the adjacent via hole group 10. The via hole group 10 includes a first via hole 11 and a second via hole 12. Figure 3 As shown, the front sides of the first conductive strip 2 and the second conductive strip 3 are respectively and regularly provided with a plurality of first protrusions 123 and second protrusions 124, the first conductive strip 2 and the second conductive strip 3 are arranged on the back side of the circuit board 1, and the first protrusions 123 and the second protrusions 124 are respectively embedded upwardly in the first via hole 11 and the second via hole 12.
[0023] In the embodiment of the present application, the first conductive strip 2 and the second conductive strip 3 are electrically connected to the circuit board 1 by respectively embedding the first protrusion 123 and the second protrusion 124 into the first via hole 11 and the second via hole 12 on the circuit board.
[0024] In the embodiment of the present application, the first conductive strip 2 and the second conductive strip 3 for power supply are arranged on the back of the circuit board 1, rather than arranging the power supply line inside the circuit board 1, so that the cross-sectional dimensions of the first conductive strip 2 and the second conductive strip 3 are no longer limited by the dimensions of the circuit board 1. In this way, the cross-sectional dimensions of the conductive strips can be adjusted as needed to meet the demand for excessive current, thereby avoiding the voltage attenuation phenomenon of the remote LED light source and ensuring the color consistency of the LED display light bar. Moreover, the present application realizes electrical connection with the circuit board 1 by arranging the first protrusion and the second protrusion on the first conductive strip 2 and the second conductive strip 3 and embedding the first protrusion and the second protrusion into the via group 10 on the circuit board 1.
[0025] like Figure 4 , Figure 5As shown, the circuit board 1 also includes a first branch line 13 and a second branch line 14, the first ends of the first branch line 13 and the second branch line 14 are respectively electrically connected to the first protrusion 123 and the second protrusion 124 embedded in the first via hole 11 and the second via hole 12, and the second ends are respectively electrically connected to the LED light-emitting body 4 adjacent to the first via hole 11 and the second via hole 12.
[0026] In this embodiment, the first ends of the first branch line 13 and the second branch line 14 are electrically connected to the first protrusion 123 and the second protrusion 124 through the first via hole 11 and the second via hole 12 respectively, and the second ends of the first branch line 13 and the second branch line 14 are electrically connected to the LED light-emitting body 4 adjacent to the group of via holes, so that the LED light-emitting body 4 is electrically connected to the first conductive strip 2 and the second conductive strip 3, thereby supplying power to the LED light-emitting body 4.
[0027] The material of the first conductive strip 2 and the second conductive strip 3 is preferably copper. Of course, they can also be other conductive materials such as aluminum, gold, silver, iron, etc., which is not limited in the present application.
[0028] It should be pointed out that if Figure 1 As shown, the upper surface of the circuit board in the present application may also include a signal line 8, in which case the signal line is electrically connected to the LED light-emitting body arranged on the circuit board to realize signal transmission. Of course, the LED light bar of the present application may also not include a signal line, in which case the signal is transmitted in the form of a carrier through the first conductive strip 2 and the second conductive strip 3.
[0029] At least one LED light-emitting body can be arranged between every two adjacent via groups 10 on the circuit board. The LED light-emitting body arranged between two adjacent via groups 10 can be electrically connected to the first protrusion 123 and the second protrusion 124 through the first branch line 13 and the second branch line 14 on the circuit board, and then electrically connected to the first conductive strip and the second conductive strip.
[0030] In some embodiments, Figure 4 As shown, one LED light-emitting body 4 is arranged between every two adjacent via groups 10 on the circuit board 1, that is, a via group 10 is arranged between every two adjacent LED light-emitting bodies 4. At this time, for each LED light-emitting body 4, there are two first branch lines 13 electrically connected to it, which come from the first via holes 11 above and below it respectively. The second branch line 14 is the same, and it will not be repeated here.
[0031] In other embodiments, Figure 5As shown, two LED light-emitting bodies 4 are arranged between every two adjacent via groups 10 on the circuit board 1. In this embodiment, not every two adjacent LED light-emitting bodies 4 are provided with via groups 10, but they are arranged at intervals, that is, for each LED light-emitting body 4, it has only one first branch line 13 electrically connected to it, which comes from the first via hole 11 above or below it, and the second branch line 14 is the same, which will not be repeated here.
[0032] In other embodiments, the first branch line 13 and the second branch line 14 are circuits inside the circuit board 1. The first branch line 13 and the second branch line 14 are arranged inside the circuit board 1 and extend into the first via hole 11 and the second via hole 12 respectively. When the first conductive strip 2 and the second conductive strip 3 are respectively embedded in the first via hole 11 and the second via hole 12 on the circuit board 1, the first branch line 13 and the second branch line 14 are respectively electrically contacted with the protrusions 123 of the first conductive strip 2 and the second conductive strip 3, thereby supplying power to the LED light source 4.
[0033] Furthermore, a glue-sealing filling layer 6 is provided in the housing 5 , and the glue-sealing filling layer 6 seals the circuit board 1 , the first conductive strip 2 , and the second conductive strip 3 in the housing 5 .
[0034] It is understandable that if Figure 6 As shown, in order not to affect the light-emitting effect of the LED light-emitting body 4, the light-emitting surface of the LED light-emitting body 4 can expose the glue sealing filling layer 6.
[0035] In some embodiments, Figure 6 As shown, the LED display light strip also includes an insulating portion 7, which is arranged below the circuit board 1 and between the first conductive strip 2 and the second conductive strip 3, and the front surface of the insulating portion 7 contacts the lower surface of the circuit board 1, and the lower surface contacts the bottom of the shell 5.
[0036] In other embodiments, Figure 7 As shown, the insulating portion 7 is arranged between the first conductive bar 2 and the bottom of the shell 5 and contacts the first conductive bar 2 and the U-shaped shell. The insulating portion is also arranged between the second conductive bar 3 and the bottom of the shell 5 and contacts the second conductive bar 3 and the U-shaped shell 5.
[0037] It should be understood that the references to "one embodiment" or "some embodiments" throughout the specification mean that specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0038] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.
Claims
1. An LED display light bar, comprising a housing, characterized in that: The housing is also provided with: A circuit board and a conductive strip for power supply, wherein a plurality of via groups are regularly arranged on the circuit board; The circuit board is provided with LED illuminants on both adjacent sides of the via hole group; The front side of the conductive strip is provided with a plurality of protrusions in an integral and regular pattern. The conductive strip is provided on the back side of the circuit board, and the protrusions are embedded upwardly into the via group.
2. The LED display light strip according to claim 1, characterized in that: The conductive strip includes a first conductive strip and a second conductive strip, the via group includes a first via and a second via, and the protrusion includes a first protrusion and a second protrusion; The front sides of the first conductive strip and the second conductive strip are respectively and regularly provided with a plurality of first protrusions and second protrusions. The first conductive strip and the second conductive strip are arranged on the back side of the circuit board. The first protrusions and the second protrusions are respectively embedded upward into the first via holes and the second via holes.
3. The LED display light strip according to claim 2, characterized in that: The circuit board also includes a first branch line and a second branch line, wherein the first ends of the first branch line and the second branch line are respectively electrically connected to the first protrusion and the second protrusion embedded in the first via hole and the second via hole, and the second ends are electrically connected to the LED light-emitting body adjacent to the first via hole and the second via hole.
4. The LED display light strip according to claim 1, characterized in that: At least one LED light-emitting body is arranged between every two adjacent via hole groups.
5. The LED display light strip according to claim 1, characterized in that: A glue sealing filling layer is also arranged in the shell, and the glue sealing filling layer seals the circuit board, the first conductive strip and the second conductive strip in the shell.
6. The LED display light strip according to claim 4, characterized in that: The light-emitting surface of the LED light-emitting body exposes the glue sealing filling layer.
7. The LED display light strip according to claim 2, characterized in that: An insulating portion is provided between the circuit board and the housing, and the insulating portion is used to isolate the first conductive strip from the second conductive strip, and the first conductive strip, the second conductive strip and the housing.
8. The LED display light strip according to claim 1, characterized in that: The upper surface of the circuit board also includes a signal line, and the signal line is electrically connected to the LED light-emitting body.
9. The LED display light strip according to claim 1, characterized in that: The circuit board is a rigid board.