Double-wire double-color LED lamp strip

Abstract

The utility model discloses a double-wire double-color LED lamp strip which comprises a substrate, a first connecting wire, a second connecting wire, at least one pure white light lamp set and at least one warm white light lamp set. The first connecting line is arranged on the substrate, and one end is connected with a first signal; the second connecting line is arranged on the substrate and one end of the second connecting line is connected with a second signal; the positive electrode of the positive white light lamp set is connected with the other end of the first connecting line and the negative electrode of the warm white light lamp set. The negative electrode of the positive white light lamp set is connected with the other end of the second connecting line and the positive electrode of the warm white light lamp set. The pure white light lamp group and the warm white light lamp group can emit light independently according to the accessed first signal and the second signal so as to generate pure white light or warm white light; or simultaneously emitting light to generate light with different color temperatures; by means of the structure, two-color adjustment of the lamp strip can be achieved only through the two connecting wires, the wiring difficulty on the substrate is lowered, meanwhile, the width of the substrate is reduced, miniaturization of the lamp strip is facilitated, and the lamp strip has very good practicability.

Description

Technical Field

[0001] The utility model relates to the field of light strips, in particular to a double-line double-color LED light strip. Background Art

[0002] Light strips are a type of lamp widely used in lighting and decoration, and are popular for their low energy consumption and long life. Existing light strips, especially two-color light strips, are usually three-wire structures, namely a substrate and a group of white light LED lamp beads, a group of warm light LED lamp beads, a power line and two signal lines located on the substrate. The power line is used to provide working voltage for the white light LED lamp beads and the warm light LED lamp beads, and the two signal lines respectively control the brightness of the group of white light LED lamp beads and the group of warm light LED lamp beads, thereby achieving color temperature adjustment. However, in this light strip, there are three wiring harnesses on the substrate, which makes the width of the substrate larger, and also increases the wiring cost, which is not conducive to the miniaturization of the light strip. Therefore, there is an urgent need for a two-wire two-color LED light strip to solve the above problems. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a double-line double-color LED light strip.

[0004] An embodiment of the utility model solves the technical problem by adopting a technical solution: a two-line two-color LED light strip, comprising a substrate, a first connecting line, a second connecting line, at least one positive white light group and at least one warm white light group;

[0005] The first connecting line is arranged on the substrate and one end of the first connecting line is connected to the first signal;

[0006] The second connecting line is arranged on the substrate and one end of the second connecting line is connected to the second signal;

[0007] The positive electrode of the positive white light lamp group is respectively connected to the other end of the first connecting line and the negative electrode of the warm white light lamp group, and the negative electrode of the positive white light lamp group is respectively connected to the other end of the second connecting line and the positive electrode of the warm white light lamp group;

[0008] The pure white light lamp group and the warm white light lamp group can emit light separately according to the first signal and the second signal received to generate pure white light or warm white light; or emit light at the same time to generate light of different color temperatures.

[0009] As one of the preferred embodiments of the present invention, two pure white light lamp groups and two warm white light lamp groups are provided and are alternately connected between the other end of the first connecting line and the other end of the second connecting line.

[0010] As one of the preferred embodiments of the present utility model, a two-wire two-color LED light strip further includes a current limiting resistor R1 connected in series to the first connecting line and a current limiting resistor R2 connected in series to the second connecting line.

[0011] As one of the preferred embodiments of the present utility model, the pure white light lamp group includes at least one pure white light LED lamp bead, and the warm white light lamp group includes at least one warm white light LED lamp bead.

[0012] The beneficial effects of the utility model: a two-wire two-color LED light strip, comprising a substrate, a first connecting wire, a second connecting wire, at least one positive white light lamp group and at least one warm white light lamp group; the first connecting wire is arranged on the substrate and one end is connected to a first signal; the second connecting wire is arranged on the substrate and one end is connected to a second signal; the positive pole of the positive white light lamp group is respectively connected to the other end of the first connecting wire and the negative pole of the warm white light lamp group, and the negative pole of the positive white light lamp group is respectively connected to the other end of the second connecting wire and the positive pole of the warm white light lamp group; the positive white light lamp group and the warm white light lamp group can emit light separately according to the first signal and the second signal connected to generate positive white light or warm white light; or emit light at the same time to generate light of different color temperatures; through the above structure, the two-color adjustable light strip can be realized through only two connecting wires, which reduces the wiring difficulty on the substrate, and also reduces the width of the substrate, which is conducive to the miniaturization of the light strip and has very good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0014] Figure 1 The figure is a circuit schematic diagram of a two-wire two-color LED light strip. DETAILED DESCRIPTION

[0015] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0016] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0017] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 therefore cannot be understood as a limitation on the present invention.

[0018] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0019] Reference Figure 1 , a two-line two-color LED light strip, comprising a substrate, a first connecting line 10, a second connecting line 20, at least one positive white light group 30 and at least one warm white light group 40;

[0020] The first connecting line 10 is arranged on the substrate and one end of the first connecting line is connected to the first signal;

[0021] The second connecting line 20 is arranged on the substrate and one end of the second connecting line is connected to the second signal;

[0022] The positive electrode of the positive white light group 30 is respectively connected to the other end of the first connecting line 10 and the negative electrode of the warm white light group 40, and the negative electrode of the positive white light group 30 is respectively connected to the other end of the second connecting line 20 and the positive electrode of the warm white light group 40;

[0023] The pure white light lamp group 30 and the warm white light lamp group 40 can emit light individually according to the first signal and the second signal input to generate pure white light or warm white light; or emit light simultaneously to generate light of different color temperatures.

[0024] In the utility model, when in use, when white light illumination is needed, the first signal is inputted by one end of the first connecting wire 10, and the second signal is not inputted by one end of the second connecting wire 20, that is, one end of the first connecting wire 10 serves as the positive electrode, and one end of the second connecting wire 20 serves as the negative electrode. At this time, the positive white light lamp group 30 is in a forward conduction state and can emit light normally, while the warm white light lamp group 40 is in a reverse cutoff state and cannot emit light, thereby presenting white light illumination as a whole.

[0025] When warm light illumination is needed, the second signal is inputted by one end of the second connecting line 20, and the first signal is not inputted by one end of the first connecting line 10, that is, one end of the second connecting line 20 serves as the positive electrode, and one end of the first connecting line 10 serves as the negative electrode. At this time, the warm white light lamp group 40 is in a forward conduction state and can emit light normally, while the positive white light lamp group 30 is in a reverse cutoff state and cannot emit light, thereby presenting warm light illumination as a whole.

[0026] When the color temperature needs to be adjusted, a first signal is input from one end of the first connecting line 10, and a second signal is input from one end of the second connecting line 20, and the first signal and the second signal are input alternately and at a higher frequency. If a lower color temperature is required at this time, the duty cycle of the first signal is controlled to increase, while the duty cycle of the second signal is controlled to decrease, so that the brightness of the positive white light lamp group 30 increases and the brightness of the warm white light lamp group 40 decreases, thereby presenting light with a lower color temperature as a whole; if a higher color temperature is required at this time, the duty cycle of the first signal is controlled to decrease, while the duty cycle of the second signal is controlled to increase, so that the brightness of the positive white light lamp group 30 decreases and the brightness of the warm white light lamp group 40 increases, thereby presenting light with a higher color temperature as a whole.

[0027] The advantage of the utility model is that the dual-color adjustable light strip can be achieved through the above structure only by two connecting wires, which reduces the wiring difficulty on the substrate and also reduces the width of the substrate, which is conducive to the miniaturization of the light strip and has very good practicality.

[0028] Preferably, two pure white light lamp groups 30 and warm white light lamp groups 40 are provided and are alternately connected between the other end of the first connecting line 10 and the other end of the second connecting line 20; this setting can make the white light brightness and warm light brightness higher, and also make the color temperature adjustment softer.

[0029] Preferably, a two-wire two-color LED light strip further includes a current limiting resistor R1 connected in series to the first connecting wire 10 and a current limiting resistor R2 connected in series to the second connecting wire 20 .

[0030] Preferably, the pure white light lamp group 30 includes at least one pure white light LED lamp bead, and the warm white light lamp group 40 includes at least one warm white light LED lamp bead.

[0031] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A two-line two-color LED light strip, characterized in that: It comprises a substrate, a first connecting line (10), a second connecting line (20), at least one positive white light lamp group (30) and at least one warm white light lamp group (40); The first connecting line (10) is arranged on the substrate and one end of the first connecting line is connected to a first signal; The second connecting line (20) is arranged on the substrate and one end of the second connecting line is connected to a second signal; The positive electrode of the positive white light lamp group (30) is respectively connected to the other end of the first connecting line (10) and the negative electrode of the warm white light lamp group (40), and the negative electrode of the positive white light lamp group (30) is respectively connected to the other end of the second connecting line (20) and the positive electrode of the warm white light lamp group (40); The pure white light lamp group (30) and the warm white light lamp group (40) can emit light individually according to the first signal and the second signal received to generate pure white light or warm white light; or emit light simultaneously to generate light of different color temperatures.

2. The double-line double-color LED light strip according to claim 1, characterized in that: The pure white light lamp group (30) and the warm white light lamp group (40) are provided in two numbers and are alternately connected between the other end of the first connecting line (10) and the other end of the second connecting line (20).

3. The double-line double-color LED light strip according to claim 1, characterized in that: It also includes a current limiting resistor R1 connected in series to the first connecting line (10) and a current limiting resistor R2 connected in series to the second connecting line (20).

4. The double-line double-color LED light strip according to claim 1, characterized in that: The pure white light lamp group (30) includes at least one pure white light LED lamp bead, and the warm white light lamp group (40) includes at least one warm white light LED lamp bead.

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