Soft lamp strip capable of being cut at will

Abstract

The utility model discloses a randomly-tailorable soft lamp strip and relates to the technical field of lamps. The LED lamp strip comprises a lamp strip body, any end of the lamp strip body is electrically connected with a power line, the power line is composed of a power input end VDD and a ground GND, and the LED lamp strip is characterized in that multiple sets of lamp string circuits are sequentially arranged in the length direction of the lamp strip body and connected in parallel; the lamp string circuits are sequentially provided with a plurality of lamp beads in series, the positive electrodes of the lamp beads in the same sequence in the multiple lamp string circuits are all connected, and the negative electrodes are all connected. The upper end of the light string circuit is connected with the power input end VDD, and the lower end of the light string circuit is connected with the ground GND. According to the technical scheme, the LED lamp strip has the advantages of being convenient to use, capable of being cut at will, capable of accurately controlling the length of the lamp strip, wide in lamp bead selection range, adaptive to universal power supply voltage, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, and in particular to a soft light strip that can be cut at will. Background Art

[0002] With the expansion of the application scope of LED soft light strips, LED soft light strips need to cope with a variety of application scenarios. For lighting scenarios such as furniture, cabinets, characters, etc., the length of the light strips requires high precision. At present, the existing light strips generally simply connect multiple groups of light strings in parallel to form a longer light strip. When the light strip needs to be cut, it needs to be cut by light string as a unit, which cannot meet the high precision requirements. If it is cut on the light string, the entire light string will be unusable.

[0003] To meet the above requirements, some light strips will use high-voltage lamp beads to adapt to the power supply voltage, so that the cutting units of the light strip are made into 1 lamp per cutting unit or 2 lamps per cutting unit. For example, the Chinese utility model patent with publication number CN220152671U requires the use of high-VF value LED lamp beads to adapt to the power supply voltage, which limits the range of LED lamp beads that can be selected. At the same lamp bead density, it will greatly increase the cost. Utility Model Content

[0004] The purpose of the utility model is to provide a soft light strip that can be cut at will in view of the defects and shortcomings of the prior art, which has the advantages of being easy to use, can be cut at will, high-precision control of the length of the light strip, a wide range of lamp beads to choose from, adaptable power supply voltage, and low cost.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a flexible light strip that can be cut at will, comprising:

[0006] A light strip, wherein any end of the light strip is electrically connected to a power line, wherein the power line is composed of a power input terminal VDD and a ground GND,

[0007] A plurality of groups of light string circuits are sequentially arranged in the length direction of the light strip, and the plurality of groups of light string circuits are connected in parallel;

[0008] The light string circuit is provided with a plurality of lamp beads in series in sequence, and the positive poles of the lamp beads of the same sequence in the plurality of groups of the light string circuits are all connected, and the negative poles are also all connected;

[0009] The upper end of the light string circuit is connected to the power input terminal VDD, and the lower end of the light string circuit is connected to the ground GND.

[0010] The utility model is further arranged that the light string circuit also includes: a current limiting resistor at the top end of the light string circuit is arranged in series.

[0011] The utility model is further arranged that the light string circuit also includes: a lower current limiting resistor at the bottom end of the light string circuit is arranged in series.

[0012] After adopting the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the present utility model, each group of light string circuits is connected in parallel, so each group of light string circuits 2 works independently, and the work of each group of light string circuits does not affect each other. In the actual structure of the light strip 1, each group of light string circuits is arranged along the length direction of the light strip. Therefore, when using the light strip, we can cut between any two groups of light string circuits 2 according to the actual required length of the light strip to divide the light strip into two parts. Both parts of the light strip can still work normally without affecting the use. This cutting method uses a light string circuit as a cutting unit to meet the length requirements of the light strip and ensure the use effect of the light strip.

[0014] 2. In the present invention, a light string circuit is provided with a plurality of lamp beads connected in series in sequence, and the positive poles of the lamp beads in the same order in the plurality of light string circuits are all connected, and the negative poles are all connected. The light string circuit can be cut arbitrarily to divide the light string circuit into two parts, and the two parts of the light string circuit can still work normally.

[0015] 3. In the utility model, since the length of the light strip can be accurately controlled by cutting on the same light string circuit, a group of light string circuits can be set with multiple lamp beads in series, and multiple lamp beads with smaller VF values ​​can be connected in series to adapt to higher operating voltages without the need to use expensive high-VF value lamp beads, which can greatly reduce the production cost of the light strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a circuit diagram of the utility model;

[0019] Figure 3 It is a circuit diagram of the utility model after cutting;

[0020] Figure 4 This is a schematic diagram of the circuit after cutting in another way of the utility model;

[0021] Figure 5 This is a schematic diagram of the circuit after cutting in another way of the utility model;

[0022] Figure 6 This is a circuit diagram of the utility model after cutting in another way.

[0023] Explanation of reference numerals: 100, light strip; 200, light string circuit; 1, lamp beads; 2, upper current limiting resistor; 3. lower current limiting resistor. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0026] This embodiment relates to a flexible light strip that can be cut at will, such as Figure 1-4 As shown, it includes: a light strip 100.

[0027] Any end of the light strip 100 is electrically connected to a power line, and the power line consists of a power input terminal VDD and a ground GND. The light strip 100 has multiple groups of light string circuits 200 arranged in sequence along the length direction, and the multiple groups of light string circuits 200 are connected in parallel. The upper end of the light string circuit 200 is connected to the power input terminal VDD, and the lower end of the light string circuit 200 is connected to the ground GND to provide power for the light strip 100. Since each group of light string circuits 200 is connected in parallel, each group of light string circuits 200 works independently, and the work of each group of light string circuits does not affect each other. In the actual structure of the light strip 100, each group of light string circuits 200 is arranged along the length direction of the light strip 100. The light string circuits 200 in the light strip 100 can be increased arbitrarily if the power of the connected power supply allows, so as to meet the user's usage requirements.

[0028] When using the light strip, we can cut it between any two sets of light string circuits 200 according to the actual required length of the light strip 100 to divide the light strip 100 into two parts. Both parts of the light strip 100 can still work normally without affecting the use. This cutting method uses one light string circuit 200 as a cutting unit to meet the length requirement of the light strip and ensure the use effect of the light strip.

[0029] In this embodiment, the light string circuit 200 is sequentially connected with a plurality of lamp beads 1, and the positive poles and negative poles of the lamp beads 1 of the same order in the plurality of light string circuits 200 are all connected. That is, the positive poles and negative poles of the first lamp bead 1 in the plurality of light string circuits 200 are all connected; the positive poles and negative poles of the second lamp bead 1 in the plurality of light string circuits are all connected... The positive poles and negative poles of the Nth lamp bead 1 in the plurality of light string circuits are all connected. When cutting and using, the light strip 100 can be cut at any position to divide the light strip 100 into two parts, and the length of the light strip 100 can be controlled with high precision. Not only can the cutting be done between two groups of light string circuits 200, but also between any two lamp beads 1 on the same light string circuit 200, and the light strip 100 divided into two parts can still work normally; even if any lamp bead 1 or resistor in the light string circuit 200 is accidentally cut, the other parts can still be used normally, so that the length cutting accuracy of the light strip 100 is higher to meet the high-precision requirements of the length of the light strip 100. At the same time, when cutting between light string circuits 200, most of the lamp beads 1 on the same light string circuit 200 can continue to work normally. It is less destructive to the light string circuit 200 and is not easy to cause waste of lamp beads 1.

[0030] In this embodiment, since the length of the light strip 100 can be precisely controlled by cutting on the same light string circuit 200, a group of light string circuits 200 can be set with multiple lamp beads 1 in series, and multiple lamp beads 1 with smaller VF values ​​can be connected in series to adapt to higher operating voltages without the need to use more expensive high-VF value lamp beads 1, which can greatly reduce the production cost of the light strip 100.

[0031] In the utility model, the light string circuit 200 also includes: a current limiting resistor 2 at the upper end of the light string circuit 200 is arranged in series to perform current limiting protection on the light string circuit 200 to ensure good use of the light strip 100. As a preferred solution, the light string circuit 200 also includes: a lower current limiting resistor 3 at the lower end of the light string circuit 200 is arranged in series, so that when the light string circuit 200 is cut into two parts, both parts are provided with current limiting resistors for protection to ensure its stability and safety in use.

[0032] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A flexible light strip that can be cut at will, comprising: A light strip (100), wherein any one end of the light strip (100) is electrically connected to a power line, wherein the power line is composed of a power input terminal VDD and a ground GND, and wherein: The light strip (100) has a plurality of groups of light string circuits (200) arranged in sequence along the length direction, and the plurality of groups of light string circuits (200) are connected in parallel; The light string circuit (200) is provided with a plurality of lamp beads (1) connected in series in sequence, and the positive poles of the lamp beads (1) of the same sequence in a plurality of groups of the light string circuits (200) are all connected, and the negative poles are also all connected; The upper end of the light string circuit (200) is connected to the power input terminal VDD, and the lower end of the light string circuit (200) is connected to the ground GND.

2. The flexible light strip that can be cut at will according to claim 1, characterized in that: The light string circuit (200) further comprises: a current limiting resistor (2) at the top end of the light string circuit (200) arranged in series.

3. The flexible light strip that can be cut at will according to claim 1 or 2, characterized in that: The light string circuit (200) further comprises: a lower current limiting resistor (3) at the bottom end of the light string circuit (200) arranged in series.

Images