Omnibearing bendable super-long light bar

Abstract

The invention relates to the technical field of flexible light-emitting diode (LED) light bar products, in particular to an omni-directional bendable super-long light bar which comprises a shading bar made of a soft light-proof material, a containing groove and a flexible LED light strip and further comprises a plurality of flexible connecting pieces, the flexible LED light strip is provided with a plurality of deformation sections which are bent downwards at intervals, and the flexible connecting pieces are arranged on the flexible LED light strip. The two ends of the flexible connecting piece are fixedly connected with the two ends of the deformation section after crossing the middle of the deformation section. The flexible LED lamp strip comprises a flexible base material layer, a first power supply circuit arranged on the first face of the flexible base material layer and a plurality of parallel connection units connected to the first power supply circuit in parallel, in practical application, due to the special structural design of a deformation section, the lamp strip product can be freely bent up and down and left and right, and the service life of the lamp strip product is prolonged. The LED lamp strip is particularly suitable for installation occasions with various curve outlines, due to the design of the widened power supply layer, the power supply current and power of the lamp strip can be greatly improved, the length of the LED lamp strip is obviously increased, and practicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible LED light bar products, and in particular to an all-round bendable super-long light bar. Background Art

[0002] LED technology shines in the lighting field with its outstanding characteristics, such as colorful, compact, green and long life. This innovative technology is cleverly applied to LED light strips, which not only lights up the city skyline, adds infinite brilliance to the outlines of iconic buildings, towering buildings, quaint pavilions, winding bridges and public spaces such as parks and squares, but also penetrates into the subtleties of home life, such as decorative lighting, window displays, signage and even creative design of billboards, greatly broadening its application scope and possibilities.

[0003] However, in the pursuit of design flexibility and creative expression, although traditional LED light strips have adopted flexible circuit boards to achieve a certain degree of bending ability, this improvement mainly focuses on the compliance of the light strip in the length direction, that is, allowing the light strip to bend freely in the irradiation direction to adapt to various curved contours. Unfortunately, due to the characteristic that flexible circuit boards cannot bend sideways, LED light strips cannot be bent freely in all directions, which limits the use of LED light strips in more creative shapes and spatial layouts, and the defects are obvious.

[0004] In addition, it is found in actual application that due to the problems of power supply and heat generation, the length of flexible light strips cannot be very long. Generally, 100 meters is close to the limit. If the light strip is made longer, a larger power supply needs to be provided. Under the premise that the power supply voltage is not high, the current needs to be continuously increased. However, due to the existence of resistance in the circuit and the large number of LED lamp beads, when the length of the light strip exceeds 100 meters, the current supply is unstable and the LED brightness is uneven, which seriously affects the use effect of the light strip and has obvious defects. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a highly reliable all-round bendable ultra-long light strip which can realize both all-directional bending and long-distance stable power supply.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: an all-round bendable super-long light strip, comprising a shading strip made of soft opaque material, a receiving groove opened in the shading strip, and a flexible LED light strip installed in the receiving groove, wherein the flexible LED light strip is provided with a plurality of LED lamp beads at intervals, and further comprising a plurality of flexible connectors, wherein the flexible LED light strip is provided with a plurality of downwardly bent deformation sections at intervals, and the two ends of the flexible connector are respectively fixedly connected to the two ends of the deformation section after crossing the middle of the deformation section; The flexible LED light strip includes a flexible substrate layer, a first power supply circuit arranged on the first surface of the flexible substrate layer, and a plurality of parallel connection units connected in parallel to the first power supply circuit. The parallel connection unit includes a current management chip and a plurality of LED lamp beads connected in series. The model of the current management chip is NU502. The negative terminals of the plurality of LED lamp beads connected in series are electrically connected to the positive circuit of the power supply line layer. The positive terminals of the plurality of LED lamp beads connected in series are electrically connected to the OPT terminal and the NC terminal of the current management chip. The positive terminals of the plurality of LED lamp beads connected in series are connected to a Zener diode and a resistor R2 and then electrically connected to the REXT terminal of the current management chip. The two ends of the Zener diode are respectively electrically connected to the OPT terminal and the GND terminal of the current management chip. The negative terminals of the plurality of LED lamp beads connected in series are connected to a resistor R1 and then electrically connected to the VDD terminal of the current management chip. A second power supply circuit is provided on the second surface of the flexible substrate layer, and the second power supply circuit is electrically connected to the first power supply circuit through a conductive via.

[0007] Preferably, the deformation section is a section of the flexible LED light strip that is bent downward to form a U-shape or a C-shape, and both ends of the flexible connector are fixed on the upper surface of the flexible LED light strip.

[0008] Preferably, deformation notches are provided on both side edges of the deformation section, the flexible connector is in an "8" shape, and LED lamp beads are embedded in the through holes at both ends of the flexible connector.

[0009] Preferably, a flexible support belt is provided between the bottom surface of the accommodating groove and the flexible LED light belt, and the flexible support belt is provided with an escape cavity for accommodating the deformation section.

[0010] Preferably, a tensile bottom belt is provided between the flexible supporting belt and the bottom surface of the accommodating groove.

[0011] Preferably, a light-transmitting glue for sealing the flexible LED light strip is installed in the accommodating groove.

[0012] Preferably, the light-transmitting adhesive is embedded in the receiving groove by an extrusion molding process; the inner wall of the light-transmitting adhesive is provided with a diffuse reflection texture.

[0013] Preferably, the plurality of LED lamp beads are connected in series with a resistor R3, and the resistor R3 is located in the middle of the plurality of LED lamp beads connected in series.

[0014] Preferably, the first power supply circuit includes a plurality of S-shaped segments arranged in the middle of the flexible substrate layer, two ends of two adjacent S-shaped segments are staggered, and two poles of the LED lamp bead are respectively welded to the staggered parts of the two ends.

[0015] Preferably, the model of the voltage stabilizing diode is BZT52C20.

[0016] The beneficial effect of the present invention is that the present invention provides an all-round bendable super-long light strip. In practical applications, due to the special structural design of the deformation section, the difficulty and damage of the flexible LED light strip when bending sideways are greatly reduced. Combined with the normal up and down bendable characteristics of the flexible LED light strip, the light strip product can be bent freely up and down, left and right in all directions. It is particularly suitable for installation occasions with various curved contours and has strong practicality. Due to the design of the widened power supply layer, the power supply current and power of the light strip can be greatly improved, and more LED lamp beads can be driven to work, so that the length of the LED light strip is significantly lengthened. Under the constant current control of the current management chip, the brightness and power of all LED lamp beads in the LED light strip can be reliably guaranteed, ensuring that the brightness of the finished light strip is uniform and reliable. The present invention also uses a plurality of LED lamps to be connected in series into a parallel unit, and then the parallel unit is connected in parallel to the power supply line layer. Even if a certain LED lamp bead is damaged, only the parallel unit where it is located cannot emit light, and other parallel units can still work normally, with high reliability; the model of the voltage stabilizing diode is BZT52C20, and the design of the voltage stabilizing diode can stabilize the input voltage at around 20V, protect the subsequent circuit from the influence of voltage fluctuations, and prevent damage to sensitive devices or other electronic components when the voltage exceeds 20V, with high reliability. The widened power supply layer not only realizes the transmission of large current by increasing the width without increasing the thickness, but also ensures the flexibility and tensile properties of the LED light strip, with high structural strength and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the omnidirectional curved light strip of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the omnidirectional curved light bar of the present invention.

[0019] Figure 3 It is a partially enlarged schematic diagram of the three-dimensional structure of the omnidirectional curved light bar of the present invention when it is decomposed.

[0020] Figure 4 It is a schematic structural diagram of the front side of the structure of the flexible LED light strip in the omnidirectionally bendable super-long light strip of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the front side of the parallel connection unit in the structure of the flexible LED light strip in the omnidirectionally bendable super-long light strip of the present invention.

[0022] Figure 6 This is a schematic diagram of the front structure when the parallel connection unit in the structure of the flexible LED light strip in the all-round bendable super-long light strip of the present invention hides the LED lamp beads and the current management chip.

[0023] Figure 7It is a structural schematic diagram of the back side of the parallel connection unit in the structure of the flexible LED light strip in the omnidirectionally bendable super-long light strip of the present invention.

[0024] Figure 8 It is a schematic diagram of the circuit structure of the parallel connection unit in the structure of the flexible LED light strip in the omnidirectionally bendable super-long light strip of the present invention. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments, and the contents mentioned in the implementation modes are not intended to limit the present invention.

[0026] like Figures 1 to 8 As shown, an all-round bendable super-long light strip comprises a shading strip 1 made of a soft opaque material, a receiving groove 11 provided in the shading strip 1 and a flexible LED light strip 2 installed in the receiving groove 11, wherein the flexible LED light strip 2 is provided with a plurality of LED lamp beads 21 at intervals, and further comprises a plurality of flexible connectors 3, wherein the flexible LED light strip 2 is provided with a plurality of downwardly bent deformation sections 22 at intervals, and the two ends of the flexible connector 3 are respectively fixedly connected to the two ends of the deformation section 22 after crossing the middle of the deformation section 22; the flexible LED light strip 2 comprises a flexible substrate layer, a first power supply circuit 25 provided on the first surface of the flexible substrate layer and a plurality of parallel connection units 7 connected in parallel to the first power supply circuit 25, wherein the parallel connection unit 7 comprises a current management chip 71 and a plurality of LED lamp beads 21 connected in series with each other, The model of the current management chip 71 is NU502. The negative terminals of the multiple LED lamp beads 21 connected in series are electrically connected to the positive line of the power supply line layer. The positive terminals of the multiple LED lamp beads 21 connected in series are electrically connected to the OPT terminal and the NC terminal of the current management chip 71. The positive terminals of the multiple LED lamp beads 21 connected in series are connected to the Zener diode 72 and the resistor R2 and then electrically connected to the REXT terminal of the current management chip 71. The two ends of the Zener diode 72 are respectively electrically connected to the OPT terminal and the GND terminal of the current management chip 71. The negative terminals of the multiple LED lamp beads 21 connected in series are connected to the resistor R1 and then electrically connected to the VDD terminal of the current management chip 71. A second power supply line 73 is provided on the second surface of the flexible substrate layer, and the second power supply line 73 is electrically connected to the first power supply line 25 through a conductive via.

[0027] In practical applications, due to the special structural design of the deformation section 22, the difficulty and damage of the flexible LED light strip 2 when bending sideways are greatly reduced. Combined with the normal upward and downward bending characteristics of the flexible LED light strip 2, the free bending of the light strip product in all directions, especially suitable for installation occasions with various curved contours, is highly practical. Due to the design of widening the power supply layer 3, the power supply current and power of the light strip can be greatly improved, and more LED lamp beads 21 can be driven to work, so that the length of the LED light strip is significantly lengthened. Under the constant current control of the current management chip 71, the brightness and power of all LED lamp beads 21 of the LED light strip can be reliably guaranteed, ensuring that the brightness of the finished light strip is uniform and reliable. The present invention also uses a plurality of LED lamps to be first connected in series into a parallel connection unit 7, and then the parallel connection unit 7 is connected in parallel to the power supply line layer. Even if a certain LED lamp bead 21 is damaged, only the parallel connection unit 7 where it is located cannot emit light, and other parallel connection units 7 can still work normally, with high reliability; the model of the voltage stabilizing diode 72 is BZT52C20, and the design of the voltage stabilizing diode 72 can stabilize the input voltage at around 20V, protect the subsequent circuit from the influence of voltage fluctuations, and prevent damage to sensitive devices or other electronic components when the voltage exceeds 20V, with high reliability. The widened power supply layer not only realizes the transmission of large current by increasing the width without increasing the thickness, but also ensures the flexibility and tensile properties of the LED light strip, with high structural strength and strong practicality.

[0028] In the present embodiment, the deformation section 22 is a section of the flexible LED light strip 2 that is bent downward to form a U-shape or a C-shape, and both ends of the flexible connector 3 are fixed on the upper surface of the flexible LED light strip 2. Due to the pulling action at both ends of the flexible connector 3, the deformation section 22 of the flexible LED light strip 2 can remain bent for a long time, which facilitates the flexible LED light strip 2 to remain in a state where it can be bent in all directions for a long time, avoiding the bent deformation section 22 from becoming straight due to local pulling or self-deformation of the light strip, which affects the plasticity of all-round bending, and has high reliability.

[0029] In this embodiment, deformation notches 23 are provided on both sides of the deformation section 22, the flexible connector 3 is in an "8" shape, and LED lamp beads 21 are embedded in the through holes at both ends of the flexible connector 3. The LED lamp beads 21 fixed by welding are embedded at both ends of the flexible connector 3, further strengthening the connection tightness between the two ends of the flexible connector 3 and the flexible LED light strip 2, and the structural strength is higher.

[0030] In this embodiment, a flexible support belt 4 is provided between the bottom surface of the accommodating groove 11 and the flexible LED light strip 2, and the flexible support belt 4 is provided with a cavity 41 for accommodating the deformation section 22. This facilitates the accommodating and protecting of the deformation section 22 of the flexible LED light strip 2, avoids the deformation section 22 from being squeezed or excessively bent to cause damage to the deformation section, and has a longer durability.

[0031] In this embodiment, a tensile bottom belt 5 is provided between the flexible support belt 4 and the bottom surface of the receiving groove 11, which effectively improves the tensile performance of the all-round bendable ultra-long light strip, has higher structural strength, and further improves reliability.

[0032] In this embodiment, the receiving groove 11 is provided with a light-transmitting glue 6 for covering the flexible LED light strip 2. The inner wall of the light-transmitting glue 6 is provided with a diffuse reflection texture, and the light of the LED lamp beads 21 is softened by the light-transmitting glue 6, which reduces the stimulation to the eyes and provides better lighting comfort.

[0033] In this embodiment, the light-transmitting adhesive 6 is embedded in the accommodating groove 11 by an extrusion molding process. The light bar made by the extrusion molding process has better waterproof performance, higher structural connection strength and strong practicality.

[0034] In this embodiment, the plurality of LED lamp beads 21 are connected in series with a resistor R3, and the resistor R3 is located in the middle of the plurality of LED lamp beads 21 connected in series to prevent damage to the LED lamp beads 21 due to excessive instantaneous voltage or current when the power is turned on, thereby increasing durability.

[0035] In this embodiment, the first power supply circuit 25 includes a plurality of S-shaped segments 26 disposed in the middle of the flexible substrate layer, the two ends of two adjacent S-shaped segments 26 are staggered, and the two poles of the LED lamp bead 21 are respectively welded to the staggered portions of the two ends. The circuit layout design using a plurality of S-shaped segments 26 not only realizes the series connection of a plurality of LED lamp beads 21, but also greatly reduces the space occupied by the circuit layer when the LED lamp beads 21 are connected in series.

[0036] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An all-around bendable ultra-long light strip, comprising a shading strip (1) made of a soft opaque material, a receiving groove (11) provided in the shading strip (1), and a flexible LED light strip (2) installed in the receiving groove (11), wherein the flexible LED light strip (2) is provided with a plurality of LED lamp beads (21) at intervals, and characterized in that: It also comprises a plurality of flexible connectors (3), the flexible LED light strip (2) being provided with a plurality of downwardly bent deformation sections (22) at intervals, and the two ends of the flexible connector (3) crossing over the middle of the deformation section (22) and being fixedly connected to the two ends of the deformation section (22) respectively; The flexible LED light strip (2) comprises a flexible substrate layer, a first power supply line (25) arranged on a first surface of the flexible substrate layer, and a plurality of parallel connection units (7) connected in parallel to the first power supply line (25), wherein the parallel connection unit (7) comprises a current management chip (71) and a plurality of LED lamp beads (21) connected in series with each other, wherein the negative terminals of the plurality of LED lamp beads (21) connected in series are electrically connected to the positive line of the power supply line layer, the positive terminals of the plurality of LED lamp beads (21) connected in series are electrically connected to the OPT terminal and the NC terminal of the current management chip (71), and the plurality of LED lamp beads (21) are electrically connected to the positive line of the power supply line layer. 1) The positive end of the series connection is connected to a voltage-stabilizing diode (72) and a resistor R2 and then electrically connected to the REXT end of a current management chip (71); the two ends of the voltage-stabilizing diode (72) are respectively electrically connected to the OPT end and the GND end of the current management chip (71); the negative ends of the series connection of the plurality of LED lamp beads (21) are connected to a resistor R1 and then electrically connected to the VDD end of the current management chip (71); and a second power supply circuit (73) is provided on the second surface of the flexible substrate layer, and the second power supply circuit (73) is electrically connected to the first power supply circuit (25) through a conductive via.

2. The all-round bendable super-long light strip according to claim 1, characterized in that: The deformation section (22) is a section of the flexible LED light strip (2) that is bent downward to form a U-shape or a C-shape, and both ends of the flexible connecting piece (3) are fixed to the upper surface of the flexible LED light strip (2).

3. The all-round bendable extra-long light strip according to claim 1, characterized in that: Deformation notches (23) are provided on both side edges of the deformation section (22); the flexible connector (3) is in an "8" shape; LED lamp beads (21) are embedded in through holes at both ends of the flexible connector (3).

4. The all-round bendable super-long light strip according to claim 3, characterized in that: A flexible support belt (4) is provided between the bottom surface of the accommodating groove (11) and the flexible LED light belt (2), and the flexible support belt (4) is provided with a bypass cavity (41) for accommodating the deformation section (22).

5. The all-round bendable super-long light strip according to claim 4, characterized in that: A tensile bottom belt (5) is provided between the flexible support belt (4) and the bottom surface of the accommodating groove (11).

6. The all-round bendable super-long light strip according to claim 4, characterized in that: The accommodating groove (11) is provided with a light-transmitting adhesive (6) for sealing the flexible LED light strip (2).

7. The all-around bendable extra-long light strip according to claim 6, characterized in that: The light-transmitting adhesive (6) is embedded in the accommodating groove (11) by means of an extrusion molding process; the inner wall of the light-transmitting adhesive (6) is provided with a diffuse reflection texture.

8. The all-around bendable extra-long light strip according to claim 1, characterized in that: The plurality of LED lamp beads (21) are connected in series with a resistor R3, and the resistor R3 is located in the middle of the plurality of LED lamp beads (21) connected in series.

9. The all-around bendable extra-long light strip according to claim 1, characterized in that: The first power supply line (25) comprises a plurality of S-shaped segments (26) arranged in the middle of the flexible substrate layer, the two ends of two adjacent S-shaped segments (26) are staggered, and the two poles of the LED lamp bead (21) are respectively welded to the staggered portions of the two ends.

10. The all-round bendable super-long light strip according to claim 1, characterized in that: The model of the voltage stabilizing diode (72) is BZT52C20.

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