LED display light bar
By arranging conductive lines on the outside of the flexible circuit board in the LED display light strips, and using thick conductors or parallel lines, the problem of limited power supply lines is solved, achieving voltage stability and color consistency, and adapting to the needs of LED displays of different sizes.
Patent Information
- Application Number
- CN202423109817.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing technologies, reducing the spacing between LED light strips leads to limited wiring space in the power supply lines, reduced current carrying capacity, weakened luminous intensity of LEDs at distant ends, and voltage attenuation resulting in uneven color and brightness. Furthermore, longer lines cause more severe voltage attenuation.
Flexible circuit boards and conductive wires are arranged inside a U-shaped housing. The conductive wires are located on the outside of the circuit board. The cross-section of the conductive wires is not limited by the size of the circuit board. Thick conductors or parallel circuits are used to increase the current capacity. The housing is sealed with an adhesive filling layer and insulated. Signal lines can be transmitted via carrier waves through the conductive wires.
It solves the problems of voltage attenuation and color unevenness, ensuring the color consistency and brightness uniformity of LED display strips, and adapting to LED displays of different sizes.
Smart Images
Figure CN223598362U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of LED display, in particular to an LED display light bar. BACKGROUND
[0002] The LED light bar is widely used in decorative display scenes such as shopping malls, hotels and restaurants because of its strong design flexibility, flexible combination of multiple light bars to form an LED display screen, and expansion according to different installation requirements.
[0003] In the prior art, in order to improve the display effect and achieve higher pixel density, the spacing between LED light bars is usually reduced. Therefore, the size of the LED light bar and its internal circuit board also needs to be reduced accordingly. However, such reduction will limit the wiring space of the power supply circuit, thereby limiting the overcurrent capacity of the circuit, resulting in a decrease in the luminous intensity of the far end of the display screen. Moreover, in order to realize a larger size LED display screen, the length of the LED light bar also needs to be increased accordingly, and the excessively long circuit will also cause voltage attenuation, resulting in uneven color and brightness. CONTENT OF THE UTILITY MODEL
[0004] Therefore, the utility model provides an LED display light bar, which comprises:
[0005] A U-shaped shell is arranged in the U-shaped shell,
[0006] a flexible circuit board, and a first conductive wire and a second conductive wire for power supply, the left and right sides of the flexible circuit board are bent downward to form an inverted U-shaped structure;
[0007] LED light emitters are regularly arranged on the outer surface of the upper side of the flexible circuit board, and the LED light emitters are electrically connected to the flexible circuit board;
[0008] The first conductive wire is arranged on the inner surface of the left side of the flexible circuit board, the second conductive wire is arranged on the inner surface of the right side of the flexible circuit board, and the first conductive wire and the second conductive wire are electrically connected to the flexible circuit board.
[0009] In a possible implementation, a glue sealing filling layer is further arranged in the U-shaped shell, and the glue sealing filling layer seals the flexible circuit board, the first conductive wire and the second conductive wire in the U-shaped shell.
[0010] In a possible implementation, an insulating part is further arranged in the flexible circuit board and the U-shaped shell, and the insulating part is used to electrically insulate the first conductive wire and the second conductive wire, and the first conductive wire and the second conductive wire and the shell.
[0011] In a possible implementation, the LED light emitters are exposed to the glue sealing filling layer.
[0012] In a possible implementation, the flexible circuit board is further provided with a signal line, which is electrically connected with the LED light emitter.
[0013] In a possible implementation, the U-shaped shell is made of stainless steel, aluminum, plastic or glass.
[0014] In the present application, the first and second conductive lines for power supply are arranged on the inner surfaces of the left and right sides of the flexible circuit board, instead of arranging the power supply lines inside the circuit board, so that the cross-sectional size of the conductive lines is no longer limited by the size of the circuit board. In this way, the cross-sectional size of the conductive lines can be adjusted as needed to meet the demand for excessive current, thereby avoiding voltage attenuation of the remote LED light emitter and ensuring the color consistency of the LED display light bar. Moreover, the flexible circuit board is bent into an inverted U-shaped structure, and the power supply lines are arranged inside the inverted U-shaped structure, which can save the space occupied by the light bar. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0016] In which:
[0017] Figure 1 is a schematic diagram of an LED display light bar provided by an embodiment of the present application;
[0018] Figure 2 is a schematic diagram of a U-shaped shell provided by an embodiment of the present application;
[0019] Figure 3 is a schematic diagram of an LED display light bar provided by an embodiment of the present application. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0021] As described in the background, in the prior art, in order to improve the display effect and realize higher pixel density, the spacing between LED light bars is usually reduced. When the spacing between LED light bars is reduced to a certain extent, in order to further reduce the distance between LED beads, the cross-sectional size of the LED light bar and the internal circuit board 1 also needs to be reduced accordingly. However, such reduction will limit the wiring space of the power supply circuit, thereby limiting the overcurrent capacity of the circuit, resulting in a decrease in the luminous intensity of the remote LED, and further causing uneven color and brightness. Moreover, in order to realize a longer size of the LED display screen, the length of the LED light bar also needs to be lengthened, and the excessively long circuit also causes voltage attenuation.
[0022] Based on this, the present application provides an LED display light bar, which can prevent voltage attenuation at the far end of the light bar.
[0023] As shown in Figure 1 An LED display light bar, comprising a U-shaped shell 6, characterized in that the U-shaped shell 6 is provided with: a flexible circuit board 1, and a first conductive wire 2 and a second conductive wire 3 for power supply, the flexible circuit board 1 is bent downward on both sides to form an inverted U-shaped structure and is arranged in the U-shaped shell, and the opening direction of the inverted U-shaped structure formed by the bending of the flexible circuit board 1 is opposite to the opening direction of the U-shaped shell.
[0024] The outer surface of the upper side of the flexible circuit board 1 is regularly provided with LED light emitters 4, the LED light emitters 4 are electrically connected with the flexible circuit board 1, the light emitting surface of the LED light emitters 4 is consistent with the opening surface of the U-shaped shell; the first conductive wire 2 is arranged on the inner surface of the left side of the flexible circuit board 1, the second conductive wire 3 is arranged on the inner surface of the right side of the flexible circuit board 1, and the first conductive wire 2 and the second conductive wire 3 are electrically connected with the flexible circuit board 1.
[0025] Among them, in order to reduce the voltage attenuation at the far end and increase the overcurrent capacity, the first conductive wire 2 and the second conductive wire 3 are preferably conductors capable of passing large current, such as selecting a copper strip with a certain thickness, or connecting multiple ordinary wires in parallel to form a wire capable of passing large current.
[0026] Of course, other conductive wire types can also be selected according to actual conditions, and the materials of the first conductive wire 2 and the second conductive wire 3 can also be selected from aluminum, gold, silver, iron and other conductive materials.
[0027] The material of the U-shaped shell 6 can be stainless steel, or other materials such as aluminum, plastic and glass can also be selected as the shell of the LED light bar.
[0028] It should be pointed out that, as Figure 1As shown, the circuit board in the present application can further include a signal line 5, which is arranged on the upper side outer surface of the circuit board and electrically connected with the LED light emitter 4 arranged on the circuit board to realize signal transmission. Of course, the LED light bar of the present application can also not include the signal line 5, in which case, the signal is transmitted in the form of carrier wave through the first conductive wire 2 and the second conductive wire 3.
[0029] The flexible circuit board 1 in the present application can be a single-sided board, a common double-sided board, a substrate-generated single-sided board or a substrate-generated double-sided board, which is not limited in the present application.
[0030] In the present application, the first conductive wire 2 and the second conductive wire 3 for power supply are arranged on the upper side outer surface of the circuit board instead of inside the circuit board, so that the cross-sectional size of the conductive wire is no longer limited by the size of the circuit board. In this way, the cross-sectional size of the conductive wire can be adjusted as needed to meet the demand for larger current, thereby avoiding the voltage attenuation phenomenon of the remote LED light emitter 4 and ensuring the color consistency of the LED display light bar.
[0031] In some embodiments, as shown in Figure 3 In order to meet the outdoor use requirements of the light bar and realize the dustproof and waterproof functions, a glue sealing filling layer 7 is further arranged in the U-shaped shell, the glue sealing filling layer 7 fills the inside of the light bar and seals the flexible circuit board 1, the first conductive wire 2 and the second conductive wire 3 in the U-shaped shell 6. It can be understood that in order not to affect the light emitting effect of the LED light emitter 4, the light emitting surface of the LED light emitter 4 can be exposed to the glue sealing filling layer 7.
[0032] In some embodiments, an insulating part 8 is further arranged in the flexible circuit board 1 and the U-shaped shell 6, which is used for electrically insulating the first conductive wire 2 and the second conductive wire 3, and the first conductive wire 2, the second conductive wire 3 and the shell.
[0033] As shown in Figure 3 The insulating part 8 is arranged between the flexible circuit board 1 and the U-shaped shell 6, which can electrically insulate the first conductive wire 2, the second conductive wire 3, and the first conductive wire 2, the second conductive wire 3 and the shell.
[0034] It should be understood that the "one embodiment" or "some embodiments" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.
[0035] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.
Claims
1. An LED display light bar comprising a U-shaped housing, characterized in that, The U-shaped shell is internally provided with: a flexible circuit board and a first conductive wire and a second conductive wire for power supply, the flexible circuit board is downwardly bent on left and right sides to form an inverted U-shaped structure; regularly arranged LED light emitters on the outer surface of the upper side of the flexible circuit board, the LED light emitters are electrically connected with the flexible circuit board; the first conductive wire is arranged on the inner surface of the left side of the flexible circuit board, and the second conductive wire is arranged on the inner surface of the right side of the flexible circuit board.
2. The LED display light bar of claim 1, wherein, The U-shaped shell is internally provided with a glue sealing filling layer, which seals the flexible circuit board, the first conductive wire and the second conductive wire in the U-shaped shell.
3. The LED display light bar of claim 2, wherein, The light emitting surface of the LED light emitter is exposed to the glue sealing filling layer.
4. The LED display light bar of claim 1, wherein, The flexible circuit board and the U-shaped shell are further provided with an insulating part, which is used for electrically insulating the first conductive wire and the second conductive wire, and the first conductive wire, the second conductive wire and the shell.
5. The LED display light bar of claim 1, wherein, The outer surface of the upper side of the flexible circuit board is further provided with a signal line, which is electrically connected with the LED light emitters.
6. The LED display light bar of claim 1, wherein, The U-shaped shell is made of stainless steel, aluminum, plastic or glass.