CN218819738U - Circular LED lamp area that can tailor wantonly - Google Patents

Abstract

The utility model discloses a circular LED lamp strip which can be cut at will, comprising a flexible substrate and a plurality of light-emitting modules which are arranged on the flexible substrate in parallel, wherein each light-emitting module comprises a first LED lamp bead, a first resistor, a plurality of second LED lamp beads and a plurality of second resistors; when the external power supply is positively connected, the plurality of second LED lamp beads are turned on and lightened, and the first LED lamp beads are turned off; when the external power supply is reversely connected, the first LED lamp beads are turned on and lightened, and the plurality of second LED lamp beads are turned off; through the structure, the lamp belt power supply can be reversely connected with glimmer reminding, the glimmer position of a user is intuitively reminded as a cutting position, the cutting convenience is greatly improved, and the lamp belt power supply has very good practicability.

Description

Circular LED lamp area that can tailor wantonly

Technical Field

The utility model relates to a circular LED lamp area that can tailor wantonly.

Background

The lamp strip is characterized in that the LED lamp bead is assembled on a strip-shaped FPC (flexible printed circuit board) or PCB (printed circuit board) hard board, and the product is named as a strip because the product is shaped like a strip, and because the service life is long (generally, the normal service life is 8-10 ten thousand hours), the lamp strip is very energy-saving and environment-friendly, and the corners of the head are gradually exposed in various decoration industries; the prior lamp belt has the following defects: 1. the lamp strip is generally supplied with direct current, the positive electrode and the negative electrode of a power supply cannot be reversely connected, the existing lamp strip has no reverse connection prevention prompting function, and a user cannot know whether the lamp strip is not bright or whether the lamp strip is damaged due to reverse connection of the polarity of the power supply; 2. the lamp strip can be cut according to needs, the marks used for indicating the cutting positions are arranged on the existing lamp strip, a user can cut the required length according to the marks, the silk-screen printing engraving degree is generally used as the marks on the lamp strip, and when the lamp strip is cut, the position is not clear and the lamp strip cannot be accurately cut due to the shielding of the structure, so that the problem is solved urgently by a circular LED lamp strip capable of being cut at will.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a circular LED lamp area that can tailor wantonly.

The utility model discloses a technical scheme that its technical problem was solved to an embodiment adopted is: a circular LED lamp strip capable of being cut randomly comprises a flexible substrate and a plurality of light-emitting modules arranged on the flexible substrate in parallel, wherein each light-emitting module comprises a first LED lamp bead, a first resistor, a plurality of second LED lamp beads and a plurality of second resistors, the plurality of second LED lamp beads are sequentially cascaded according to the connection of the cathode of the previous second LED lamp bead and the anode of the next second LED lamp bead, the plurality of second resistors are serially connected between the two adjacent second LED lamp beads, one end of the first resistor is connected with the anode of the first LED lamp bead, the cathode of the first LED lamp bead is respectively connected with an external power supply and the anode of the first second LED lamp bead, the other end of the first resistor is respectively connected with a grounding end and the cathode of the last second LED lamp bead or the last second resistor, and the first LED lamp bead on each light-emitting module is arranged at the junction of the two adjacent light-emitting modules to serve as a cutting identifier; when the external power supply is positively connected, the second LED lamp beads are turned on and lightened, and the first LED lamp beads are turned off; when the external power supply is reversely connected, the first LED lamp beads are turned on and lightened, and the second LED lamp beads are cut off.

Further, the light color emitted by the second LED lamp beads is different.

The utility model has the advantages that: a circular LED lamp strip capable of being cut at will comprises a flexible substrate and a plurality of light-emitting modules arranged on the flexible substrate in parallel, wherein each light-emitting module comprises a first LED lamp bead, a first resistor, a plurality of second LED lamp beads and a plurality of second resistors, the plurality of second LED lamp beads are sequentially cascaded according to the connection of the cathode of the previous second LED lamp bead and the anode of the next second LED lamp bead, the plurality of second resistors are serially connected between the two adjacent second LED lamp beads, one end of the first resistor is connected with the anode of the first LED lamp bead, the cathode of the first LED lamp bead is respectively connected with an external power supply and the anode of the first second LED lamp bead, the other end of the first resistor is respectively connected with a grounding end and the cathode of the last second LED lamp bead or the last second resistor, and the first LED lamp bead on each light-emitting module is arranged at the junction of the two adjacent light-emitting modules to serve as a cutting identifier; when the external power supply is positively connected, the plurality of second LED lamp beads are turned on and lightened, and the first LED lamp beads are turned off; when the external power supply is reversely connected, the first LED lamp beads are turned on and lightened, and the plurality of second LED lamp beads are turned off; through the structure, the lamp belt power supply can be reversely connected with glimmer reminding, the glimmer position of a user is intuitively reminded as a cutting position, the cutting convenience is greatly improved, and the lamp belt power supply has very good practicability.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a circular LED strip which can be cut at will;

fig. 2 is a circuit diagram of the light emitting module.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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 thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 2, a circular LED light strip capable of being cut at will includes a flexible substrate 10 and a plurality of light emitting modules 20 connected in parallel on the flexible substrate 10, where the light emitting modules 20 include first LED lamp beads 21, first resistors 22, a plurality of second LED lamp beads 23 and a plurality of second resistors 24, the plurality of second LED lamp beads 23 are connected in series with the anode of the second LED lamp bead 23 according to the connection sequence of the cathode of the second LED lamp bead 23 at the previous stage and the anode of the second LED lamp bead 23 at the next stage, the plurality of second resistors 24 are connected in series between the two adjacent second LED lamp beads 23, one end of the first resistor 22 is connected with the anode of the first LED lamp bead 21, the cathode of the first LED lamp bead 21 is connected with an external power supply and the anode of the second LED lamp bead 23 at the first stage, the other end of the first resistor 22 is connected with a ground terminal and the cathode of the second LED lamp bead 23 at the last stage or the second resistor 24 at the last stage, and the first LED lamp bead 21 on the light emitting module 20 is disposed at the junction of the two adjacent light emitting modules 20 to serve as a mark; when the external power supply is positively connected, the plurality of second LED lamp beads 23 are turned on and lightened, and the first LED lamp beads 21 are turned off; when the external power supply is reversely connected, the first LED lamp beads 21 are turned on and lightened, and the second LED lamp beads 23 are cut off.

The utility model discloses in, be provided with a plurality of light-emitting module 20 on the flexible substrate 10, be parallelly connected relation between the light-emitting module 20, light-emitting module 20 all can communicate with external power source, namely the lamp area can be tailor for minimum unit of tailorring according to light-emitting module 20, it is concrete, form the return circuit through setting up first LED lamp pearl 21 on every light-emitting module 20, for example emitting diode D3 in description attached figure 2, when the lamp area is just connecing with external power source, voltage flows to the negative pole of first LED lamp pearl 21 through external power source's positive pole, VDD end, the positive pole of a plurality of second LED lamp pearl 23, the negative pole of a plurality of second LED lamp pearl 23 and GND end, switch on lights, voltage flows to the negative pole of first LED lamp pearl 21 through external power source's positive pole, first LED lamp pearl 21 is reverse to be ended, do not light; when the lamp strip is reversely connected with an external power supply, voltage flows to cathodes of the second LED lamp beads 23 through the anode of the external power supply and a GND end, the second LED lamp beads 23 are reversely cut off and are not lightened, the voltage forms a loop through the anode of the external power supply, the GND end, the anode of the first LED lamp bead 21, the cathode of the first LED lamp bead 21 and a VDD end, the loop is turned on and lightened, and when the first LED lamp bead 21 is lightened, the loop can be used as a cutting identifier, namely, a user can cut a place where the first LED lamp bead 21 is lightened when the power supply is reversely connected; the utility model has the advantages that: through the structure, the lamp belt power supply can be reversely connected with glimmer reminding, the glimmer position of a user is intuitively reminded as a cutting position, the cutting convenience is greatly improved, and the lamp belt power supply has very good practicability.

The light emitted by the different second LED lamp beads 23 is different in color.

The present invention is not limited to the above embodiments, and equivalent modifications and substitutions may be made by those skilled in the art without departing from the spirit of the present invention, and the equivalents and substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims (2)

1. The utility model provides a circular LED lamp area that can tailor wantonly, includes flexible substrate (10) and parallelly connected the setting a plurality of light-emitting module (20) on flexible substrate (10), its characterized in that: the LED lamp comprises light-emitting modules (20) and is characterized in that each light-emitting module (20) comprises a first LED lamp bead (21), a first resistor (22), a plurality of second LED lamp beads (23) and a plurality of second resistors (24), the plurality of second LED lamp beads (23) are sequentially cascaded according to the connection of the cathode of the previous second LED lamp bead (23) and the anode of the next second LED lamp bead (23), the plurality of second resistors (24) are serially connected between the two adjacent second LED lamp beads (23), one end of each first resistor (22) is connected with the anode of the first LED lamp bead (21), the cathode of each first LED lamp bead (21) is respectively connected with an external power supply and the anode of the first second LED lamp bead (23), the other end of each first resistor (22) is respectively connected with the ground terminal and the cathode of the last second LED lamp bead (23) or the last second resistor (24), and the first LED (21) on each light-emitting module (20) is arranged at the junction of the two adjacent light-emitting modules (20) to serve as a junction mark; when the external power supply is positively connected, the second LED lamp beads (23) are turned on and lightened, and the first LED lamp beads (21) are turned off; when the external power supply is reversely connected, the first LED lamp beads (21) are turned on and lightened, and the second LED lamp beads (23) are cut off.

2. The circular LED lamp strip capable of being cut at will according to claim 1, wherein: the light colors emitted by the second LED lamp beads (23) are different.

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