Decorative lamp

Abstract

The utility model discloses a decorative lamp which comprises a first wire, a second wire and a plurality of lamp beads, the first wire and the second wire are arranged at intervals, a positive electrode pin of each lamp bead is welded to the first wire, and a negative electrode pin of each lamp bead is welded to the second wire. Wherein folding parts are formed on the portions, between every two adjacent lamp beads, of the first wire and the second wire, so that the distance between every two adjacent lamp beads is smaller than 5 mm, light spots can be achieved, and the lighting effect is improved.

Description

Technical Field

[0001] This invention relates to the field of lighting equipment technology, and in particular to a decorative lamp. Background Technology

[0002] In traditional LED strip structures, there is a significant gap between adjacent LED beads (point light sources). The light emitted by each bead primarily covers an area centered on itself, attenuating outwards. In the middle area of ​​the gap, the received light mainly comes from the "flank" light emitted by the bead, which is typically weaker. Because the light intensity is very high near the area directly below the bead, the light intensity decreases sharply in the area between the two beads. Along the length of the strip, the light intensity exhibits a periodic change of "bright (bead) - dark (gap) - bright (bead)". This periodic change of "bright-dark-bright" is perceived as a light spot by the human eye, affecting the lighting effect. Summary of the Invention

[0003] This application provides a decorative lamp that can eliminate light spots and improve lighting effects.

[0004] This application provides a decorative lamp, which includes a first wire and a second wire spaced apart and a plurality of lamp beads. The positive terminal of each lamp bead is soldered to the first wire and the negative terminal is soldered to the second wire. Folded portions are formed on the first wire and the second wire between two adjacent lamp beads so that the distance between two adjacent lamp beads is less than 5 mm.

[0005] In some embodiments, it also includes:

[0006] An insulating sleeve is fitted over the outside of the first wire, the second wire, and the plurality of lamp beads to encapsulate the plurality of lamp beads with the first wire and the second wire.

[0007] In some embodiments, the first wire and the second wire are bent to the same side to form the fold.

[0008] In some embodiments, the fold is at least one of U-shaped, wavy, spiral, or serrated.

[0009] In some embodiments, it also includes:

[0010] The signal control line is spaced apart from the first wire and the second wire, and is sequentially connected to the control pins of multiple LED beads, for sending brightness control signals or color control signals to the LED beads.

[0011] In some embodiments, the signal control line forms a folded segment between two adjacent LEDs, which bends synchronously with the folded portion.

[0012] In some embodiments, it also includes:

[0013] A control device, electrically connected to the signal control line, is used to send control signals to the LED beads to control their light emission color and / or flicker level.

[0014] In some embodiments, two adjacent LED beads abut against each other.

[0015] In some embodiments, it also includes

[0016] An interface, electrically connected to the first and second wires, is used for electrically connecting to an external power source.

[0017] In some embodiments, a battery is also included, electrically connected to the first wire and the second wire, for powering the LED beads.

[0018] Based on the decorative lamp of this application embodiment, this application shortens the spacing between adjacent LED beads to less than 5mm by folding the first and second wires, making the adjacent LED beads almost "tightly touching". The light intensity distribution areas emitted by each of them overlap to a great extent in space. The light emitted by the two LED beads in the interval area is no longer a weak light area "barely" illuminated by a single point, but rather the light emitted by two very close point light sources in the area undergoes strong superposition. Even if the light intensity of each LED bead at the center of the interval is not the strongest, the contribution from the two LED beads on the left and right is superimposed, which can significantly improve the total light intensity of the area, making it much greater than the light intensity provided by a single point under the traditional spacing. With this small spacing, the brightness difference between the "peak" (LED bead position) and the "valley" (interval center) of the light intensity distribution curve along the length of the decorative lamp becomes very small (the light intensity gradient change is gentle). The original "bright-dark-bright" cycle becomes a nearly continuous "bright-bright-bright". The human eye can no longer clearly distinguish the dark boundaries between each LED bead, but instead sees a continuous light band with uniform brightness and no obvious interruption, eliminating the "dark spots" or "discontinuous light spots" caused by excessive spacing and improving the lighting effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a decorative lamp provided in an embodiment of this application;

[0021] Figure 2A schematic diagram of the structure of the LED chip, the first wire, the second wire, and the signal control line inside the insulating sleeve, provided for an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of the LED bead, first wire, second wire, and signal control line provided in the embodiments of this application during the folding process.

[0023] Explanation of icon numbers:

[0024] 1. Decorative light; 10. First conductor; 11. Fold section; 20. Second conductor; 30. LED bead; 40. Insulating sleeve; 50. Signal control line; 51. Fold section; 60. Control device; 70. Interface.

[0025] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0027] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0028] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figure 1This application provides a decorative lamp 1, comprising a first wire 10 and a second wire 20 spaced apart, and a plurality of lamp beads 30. Please refer to the following reference. Figure 3 Each LED bead 30 has its positive pin soldered to the first wire 10 and its negative pin soldered to the second wire 20. A fold 11 is formed on the first wire 10 and the second wire 20 between two adjacent LED beads 30 so that the distance between two adjacent LED beads 30 is less than 5 mm.

[0031] It is understandable that each LED bead 30 is essentially an independent point light source. The light emitted by a point light source radiates outwards, and its intensity decreases with increasing distance. The light-emitting characteristics of the LED bead 30 are similar to those of a Lambertian light source, meaning that the light intensity is strongest in the direction perpendicular to the emitting surface and decreases with increasing angle. In traditional LED strip structures, there is a large gap between adjacent LED beads 30 (point light sources). This means that there is almost no direct light in the area directly below the LED beads 30. The light emitted by each LED bead 30 mainly covers the area centered on itself and decreases outwards. In the middle area of ​​the gap, whether viewed vertically or at a large angle, the received light mainly comes from the "flank" light emitted by the more distant LED beads 30, which is usually weaker. The light intensity is very strong in the area directly below the LED beads 30, while the light intensity decreases sharply in the area between two LED beads 30. Along the length of the LED strip, the light intensity exhibits a periodic change of "bright (LED bead 30) - dark (gap) - bright (LED bead 30)". This periodic change of "bright-dark-bright" is perceived as a light spot by the human eye.

[0032] This application shortens the spacing between adjacent LED beads 30 to less than 5mm by folding the first conductor 10 and the second conductor 20, making them almost "tightly" together. The light intensity distribution areas emitted by each bead 30 overlap significantly in space. The light emitted by the two beads 30 in the interval area is no longer a weak light area "barely" illuminated by a single point, but rather a strong superposition of light from two very close point light sources in that area. Even if the light intensity of each bead 30 at the center of the interval is not the strongest, the combined contribution from the two beads 30 significantly increases the total light intensity in that area, making it much greater than the light intensity provided by a single point under traditional spacing. With this small spacing, the brightness difference between the "peak" (bead 30 position) and the "valley" (interval center) of the light intensity distribution curve along the length of the light strip becomes very small (the light intensity gradient change is gentle). The original "bright-dark-bright" cycle becomes a nearly continuous "bright-bright-bright" cycle. The human eye can no longer clearly distinguish the dark boundaries between each LED bead 30, but instead sees a continuous light band with uniform brightness and no obvious interruption, eliminating the "dark spots" or "light spot discontinuity" caused by excessive spacing and improving the lighting effect.

[0033] Furthermore, adjacent LED beads 30 abut against each other, so that visually, the decorative light 1 presents a uniform, integrated, continuous bright line.

[0034] Please see Figure 1 and Figure 2 In some embodiments, this application further includes an insulating sleeve 40, which is sleeved on the outside of the first wire 10, the second wire 20, and the plurality of lamp beads 30 to encapsulate the lamp beads 30 with the first wire 10 and the second wire 20. The insulating sleeve 40 is made of a heat-shrinkable material, such as polyolefin, fluorinated ethylene propylene copolymer (FEP), or perfluoroalkoxy copolymer (PFA). During assembly, the first wire 10 and the second wire 20 are first bent so that adjacent lamp beads 30 are as close as possible to each other or abut against each other. Then, the insulating sleeve 40 is sleeved on the outside of the first wire 10, the second wire 20, and the plurality of lamp beads 30, and the insulating sleeve 40 is heated and shrunk. At this time, the insulating sleeve 40 tightly wraps around the outside of the first wire 10, the second wire 20, and the plurality of lamp beads 30. This not only relatively fixes the spacing between the two lamp beads 30, but also provides a robust outer shell protection for the lamp beads 30 and the wires, resisting external physical impacts, compression, and friction, thus extending the service life of the decorative lamp 1.

[0035] This application utilizes the encapsulation of the insulating sleeve 40 to form an integrated flexible light strip comprising the first conductor 10, the second conductor 20, and multiple LED beads 30. It should be noted that because the first conductor 10 and the second conductor 20 between adjacent LED beads 30 have folded portions 11, and the insulating sleeve 40 is made of a plastic material with a certain degree of deformation capability, the decorative light 1 of this application can be bent, folded, and wrapped as needed to adapt to various complex installation shapes and requirements. When the light strip is bent, the folded portions 11 can extend and stretch, releasing excess length and preventing the conductors from breaking under tension.

[0036] Please see Figure 2 In some embodiments, the first wire 10 and the second wire 20 are bent to the same side to form a fold 11. The bending of the first wire 10 and the second wire 20 to the same side to form the fold 11 ensures that both the first wire 10 and the second wire 20 are located on the same side of the plurality of LED beads 30, without obstructing the other side of the plurality of LED beads 30. When the LED beads 30 emit light, the light can propagate more smoothly from the side of the LED bead 30 away from the first wire 10 and the second wire 20, thereby improving the luminous efficiency of the LED beads 30.

[0037] Optionally, the fold 11 is at least one of U-shaped, wavy, spiral, or serrated. Exemplarily, the fold 11 of this application is generally U-shaped. This example has a simple processing technology and better expansion and contraction effect along the extension direction of the decorative lamp 1, and can better adapt to the deformation caused by bending and winding of the decorative lamp 1.

[0038] In some embodiments, this application further includes a signal control line 50, which is spaced apart from the first wire 10 and the second wire 20 and sequentially connected to the control pins of a plurality of LED beads 30, for sending brightness control signals or color control signals to the LED beads 30. Through the signal control line 50, the on / off operation, brightness level, and emission color of the LED beads 30 can be controlled, thereby meeting the decorative needs of different application scenarios.

[0039] Furthermore, the signal control line 50 forms a folded segment 51 between two adjacent LED beads 30, which is bent synchronously with the folding portion 11. Thus, after soldering multiple LED beads 30 to the first conductor 10, the second conductor 20, and the signal control line 50, folding the first conductor 10, the second conductor 20, and the signal control line 50 between two adjacent LED beads 30 simultaneously allows the LED beads 30 to abut against each other. Optionally, the signal control line 50 is located between the first conductor 10 and the second conductor 20. Therefore, the folded segment 51 can be configured with reference to the specific form of the folding portion.

[0040] In some embodiments, after welding multiple LED beads 30 to the first wire 10, the second wire 20, and the signal control line 50, injection molding is performed at the connection points between the LED beads 30 and the first wire 10, the second wire 20, and the signal control line 50. The injection molding material is a light-transmitting material, such as polymethyl methacrylate (PMMA) or cyclic olefin copolymers. This improves the stability of the connection between the LED beads 30 and the wires and effectively protects the LED beads 30. Furthermore, a complete plastic protective layer can be injection molded onto the outside of the LED beads 30, and a light-diffusing material such as titanium dioxide can be added to the plastic. This allows the light emitted from the LED beads 30 to be softly diffused from all sides of the LED beads 30 by the light-diffusing material, thereby reducing the generation of light spots.

[0041] In some embodiments, this application further includes a control device 60, electrically connected to the signal control line 50, for sending control signals to the LED beads 30 to control their emission color and / or flicker level. The control device 60 includes a control unit and an input unit. The control unit may be a circuit board, electrically connected to the control signal line. In one embodiment, the input unit is a button, electrically connected to the control unit, allowing the user to control the emission color and / or flicker level of the LED beads 30 by pressing the button. In yet another embodiment, the input unit is a mobile terminal device running an application for user interaction, and the mobile terminal device is wirelessly connected to the control unit. In this example, the user inputs the emission mode of the decorative lamp 1 through the application, and the mobile terminal transmits this signal wirelessly to the control unit, which then controls the emission of multiple LED beads 30 via the signal control line 50.

[0042] In some embodiments, this application further includes an interface 70, which is electrically connected to the first wire 10, the second wire 20 and the signal control line. The interface 70 can be in the form of a USB interface, a Type-C interface, etc., and is used to electrically connect to an external power source.

[0043] In some embodiments, this application further includes a battery (not shown in the figure), which is electrically connected to a first wire 10, a second wire 20, and a signal control line. The battery is used to power the control device and the LED 30. The battery can be a solar cell, thus fully utilizing solar energy for charging. This is not only environmentally friendly and energy-saving, but also eliminates the hassle of frequent battery replacements, making it suitable for use in various outdoor locations or places where power is difficult to access.

[0044] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A decorative lamp (1), characterized in that, include: The first conductor (10) and the second conductor (20) are spaced apart; as well as Multiple LED beads (30), the positive terminal of each LED bead (30) is soldered to the first wire (10), and the negative terminal is soldered to the second wire (20); In this case, a fold (11) is formed on the first wire (10) and the second wire (20) between two adjacent LED beads (30) so that the distance between two adjacent LED beads (30) is less than 5 mm.

2. The decorative lamp (1) as described in claim 1, characterized in that, Also includes: An insulating sleeve (40) is fitted over the outside of the first wire (10), the second wire (20), and the plurality of lamp beads (30) to encapsulate the plurality of lamp beads (30) with the first wire (10) and the second wire (20).

3. The decorative lamp (1) as described in claim 1, characterized in that, The first conductor (10) and the second conductor (20) are bent to the same side to form the fold (11).

4. The decorative lamp (1) as described in claim 3, characterized in that, The fold (11) is at least one of U-shaped, wavy, spiral or sawtooth shape.

5. The decorative lamp (1) as described in claim 1, characterized in that, Also includes: The signal control line (50) is spaced apart from the first wire (10) and the second wire (20) and is sequentially connected to the control pins of multiple LED beads (30) for sending brightness control signals or color control signals to the LED beads (30).

6. The decorative lamp (1) as described in claim 5, characterized in that, The signal control line (50) forms a folded segment (51) between two adjacent LED beads (30) that bends synchronously with the folded portion (11).

7. The decorative lamp (1) as described in claim 5, characterized in that, Also includes: The control device (60) is electrically connected to the signal control line (50) and is used to send control signals to the lamp beads (30) to control their light emission color and / or flicker level.

8. The decorative lamp (1) as described in any one of claims 1 to 7, characterized in that, The two adjacent LED beads (30) are in contact with each other.

9. The decorative lamp (1) as described in any one of claims 1 to 7, characterized in that, Also includes The interface (70) is electrically connected to the first wire (10) and the second wire (20) for electrically connecting to an external power source.

10. The decorative lamp (1) as described in any one of claims 1 to 7, characterized in that, Also includes: The battery, electrically connected to the first wire (10) and the second wire (20), is used to power the lamp beads (30).

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