CN220776113U - Color-adjustable high-voltage LED lamp strip - Google Patents

Abstract

The utility model discloses a color-adjustable high-voltage LED lamp strip, which comprises a circuit board, wherein LED lamp beads are welded on the circuit board, a heat shrinkage sleeve film is wrapped outside the circuit board, and a live wire circuit, a zero wire circuit and a plurality of control units with 220V working voltages which are connected to the live wire circuit and the zero wire circuit in parallel are arranged on the circuit board; the control unit comprises a patch bridge stack, a six-pin singlechip, a positive white light module and a warm white light module. The six-pin singlechip is adopted, so that the space occupied by the circuit board is smaller, and the wiring design is simpler; meanwhile, a transistor is adopted as a switch circuit, so that the components and the circuit structure are simpler, and the circuit board is further miniaturized; in addition, the heat-shrinkable sleeve film is used as the outer skin, and a live wire circuit and a zero wire circuit are arranged on the circuit board to replace a power wire in the prior art, so that the outer skin and the core wire of injection molding are omitted, and the volume of the LED lamp strip is further reduced.

Description

Color-adjustable high-voltage LED lamp strip

Technical Field

The utility model relates to an LED lamp, and particularly discloses a color-adjustable high-voltage LED lamp strip.

Background

The existing color-adjustable high-voltage LED lamp strip structure comprises a sheath 01, a core wire 02 is wrapped in the sheath 01, a power wire 03 is buried in the side wall of the core wire 02, a circuit board 04 is wrapped in the core wire 02, electronic components such as an LED light source 05, a control chip 06 and a resistor are welded on the circuit board 04, and the circuit board 04 is electrically connected to the power wire 03 through a lead wire 07. Because the control chip 06 on the circuit board 04 is eight or more pins, a wider circuit board and a complex circuit structure are required, and the outer skin and the core wire are formed by extrusion injection molding, the volume of the LED lamp strip and the complexity of the manufacturing process are further increased.

Disclosure of Invention

Based on the above, it is necessary to provide an adjustable high-voltage LED lamp strip with small volume, simple structure and simple manufacturing process, aiming at the problems of the prior art.

In order to solve the problems in the prior art, the utility model discloses a color-adjustable high-voltage LED lamp strip, which comprises a circuit board, wherein LED lamp beads are welded on the circuit board, a heat shrinkage sleeve film is wrapped outside the circuit board, and a live wire circuit, a zero wire circuit and a plurality of control units with 220V working voltages which are connected to the live wire circuit and the zero wire circuit in parallel are arranged on the circuit board; the control unit comprises a patch bridge pile, a six-pin singlechip, a positive white light module and a warm white light module, wherein the input end of the patch bridge pile is respectively connected to the live wire L and the zero line circuit N, the output end of the patch bridge pile comprises a positive power supply pole V+ and a negative power supply pole V-, the six-pin singlechip comprises a positive pin, a negative pin, a detection pin, a first output pin, a second output pin and a third output pin, and the positive white light module and the warm white light module are respectively formed by connecting a positive white light LED lamp bead and a warm white light LED lamp bead in series; the positive pole foot of six foot singlechip passes through first resistance to be connected the power positive pole to connect through parallelly connected zener diode and first electric capacity to the power negative pole, its negative pole foot lug connection is to the power negative pole, its detection foot is connected through the second resistance to the power positive pole, and connect through parallelly connected third resistance and second electric capacity to the power negative pole, its first output foot is connected through the fourth resistance to the base of first triode, the projecting pole of first triode is connected to the power negative pole, the collecting electrode of first triode is connected through the fifth resistance to the negative pole of positive white light module, the positive pole of positive white light module is connected to the power is positive, its second output foot is connected through the sixth resistance to the base of second triode, the projecting pole of second triode is connected to the power negative pole, the collecting electrode of second triode is connected through the seventh resistance to the negative pole of warm white light module.

The beneficial effects of the utility model are as follows: the six-pin singlechip is adopted, so that the space occupied by the circuit board is smaller, and the wiring design is simpler; meanwhile, a transistor is adopted as a switch circuit, so that the components and the circuit structure are simpler, and the circuit board is further miniaturized; in addition, the heat-shrinkable sleeve film is used as the outer skin, and a live wire circuit and a zero wire circuit are arranged on the circuit board to replace a power wire in the prior art, so that the outer skin and the core wire of injection molding are omitted, and the volume of the LED lamp strip is further reduced.

Drawings

Fig. 1 is a schematic diagram of a structure of a conventional color-adjustable high-voltage LED lamp strip.

Fig. 2 is a schematic diagram of the outline structure of the present utility model.

Fig. 3 is a schematic diagram of the overall circuit structure of the present utility model.

Fig. 4 is a schematic circuit diagram of a control module according to the present utility model.

Detailed Description

The utility model will be further described with reference to the drawings and the detailed description below, in order to further understand the features, technical means, specific objects and functions of the utility model.

Reference is made to fig. 2. The utility model provides a high-voltage LED lamp area of can mixing of colors, includes circuit board 1, has welded on circuit board 1 electronic components such as positive white light LED lamp pearl 21, warm white light LED lamp pearl 22, singlechip P and resistance electric capacity, and circuit board 1 is wrapped up in outward has pyrocondensation mantle 3.

Reference is made to fig. 3. The general circuit structure on the circuit board comprises a live wire circuit L, a zero line circuit N and a plurality of control units U connected to the live wire circuit L and the zero line circuit N in parallel.

Refer to fig. 4. The control unit U includes a patch bridge rectifier DB, a six-pin single chip microcomputer P, a positive white light module 210 and a warm white light module 220. The input end of the patch bridge pile DB is respectively connected to the live wire L and the zero line circuit N, and the output end of the patch bridge pile DB comprises a power supply positive electrode V+ and a power supply negative electrode V-. The six-pin singlechip P comprises an anode pin PB1, a cathode pin PB5, a detection pin PB2, a first output pin PB3, a second output pin PB4 and a third output pin PB6. The front white light module 210 and the warm white light module 220 are respectively formed by connecting a front white light LED lamp bead 21 and a warm white light LED lamp bead 22 with an operating voltage of 18V in series, and each light emitting module may include 10 to 12 corresponding LED lamp beads. The positive pole PB1 of the six-pin singlechip P is connected with the positive pole V+ of the power supply through a first resistor R1, and is connected to the negative pole V-of the power supply through a voltage stabilizing diode D and a first capacitor C1 which are connected in parallel, and the negative pole PB5 of the six-pin singlechip P is directly connected to the negative pole V-of the power supply; the detection pin PB2 is connected to the positive electrode V+ of the power supply through a second resistor R2, and is connected to the negative electrode V-of the power supply through a third resistor R3 and a second capacitor C2 which are connected in parallel; the first output pin PB3 is connected to the base electrode of the first transistor Q1 through a fourth resistor R4, the emitter electrode of the first transistor Q1 is connected to the negative electrode V-of the power supply, the collector electrode of the first transistor Q1 is connected to the negative electrode of the positive white light module 210 through a fifth resistor R5, and the positive electrode of the positive white light module 210 is connected to the positive electrode V+; the second output pin PB4 is connected to the base of the second transistor Q2 through the sixth resistor R6, the emitter of the second transistor Q2 is connected to the negative power supply V-, the collector of the second transistor Q2 is connected to the negative electrode of the warm white light module 220 through the seventh resistor R7, and the positive electrode of the warm white light module 220 is connected to the positive power supply v+. Because the mains voltage is 220V, in order to enable the total working voltage of the control unit U to be matched with the mains, each light-emitting module consists of 10 to 12 corresponding LED lamp beads which are connected in series, the working voltage is 180V to 216V, the voltage difference between the light-emitting module and the mains is compensated by adjusting the resistance value of the voltage dividing resistor, thus, the working voltage of each control unit U is 220V, and the LED lamp strip cutting comprises one or more control units which are connected to the mains for use. According to the utility model, the LED lamp beads with the working voltage of 18V are adopted, and compared with the LED lamp beads with the working voltage of 3V, the length of each control unit U can be shortened, so that the minimum shearing length of the LED lamp belt is 12cm, and the LED lamp belt is more convenient to use.

Reference is made to fig. 3 and 4. The control principle of the utility model is as follows: the live wire circuit L and the zero line circuit N are connected to the commercial power, a power switch K is arranged on the live wire circuit or the zero line circuit N, and the control unit adjusts the light through multiple times of switching of the power switch K. Three control modes are arranged in the P of the singlechip: a first control mode (100% white light), a second control mode (100% warm white light), and a third control mode (100% warm white light and 100% white light). When the power switch K is closed for the first time, the singlechip controls and operates according to a first mode, when the power switch is closed for the second time, the singlechip judges the switching period by detecting the charge and discharge time of the second capacitor C2 through the detection pin PB2, if the switching period is within the set time, the singlechip is advanced to operate in a second control mode, if the switching period exceeds the set time, the singlechip returns to the first control mode, and the third control mode and so on.

The six-pin singlechip is adopted, so that the space occupied by the circuit board is smaller, and the wiring design is simpler; meanwhile, a transistor is adopted as a switch circuit, so that the components and the circuit structure are simpler, and the circuit board is further miniaturized; in addition, the heat-shrinkable sleeve film is used as the outer skin, and a live wire circuit and a zero wire circuit are arranged on the circuit board to replace a power wire in the prior art, so that the outer skin and the core wire of injection molding are omitted, and the volume of the LED lamp strip is further reduced.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (2)

1. The utility model provides a high pressure LED lamp area of can mixing of colors, includes the circuit board, and the welding has LED lamp pearl, its characterized in that on the circuit board: the circuit board is externally wrapped with a thermal shrinkage sleeve film, and is provided with a live wire circuit, a zero wire circuit and a plurality of control units with 220V working voltages, wherein the control units are connected to the live wire circuit and the zero wire circuit in parallel; the control unit comprises a patch bridge pile, a six-pin singlechip, a positive white light module and a warm white light module, wherein the input end of the patch bridge pile is respectively connected to the live wire L and the zero line circuit N, the output end of the patch bridge pile comprises a positive power supply pole V+ and a negative power supply pole V-, the six-pin singlechip comprises a positive pin, a negative pin, a detection pin, a first output pin, a second output pin and a third output pin, and the positive white light module and the warm white light module are respectively formed by connecting a positive white light LED lamp bead and a warm white light LED lamp bead in series; the positive pole foot of six foot singlechip passes through first resistance to be connected the power positive pole to connect through parallelly connected zener diode and first electric capacity to the power negative pole, its negative pole foot lug connection is to the power negative pole, its detection foot is connected through the second resistance to the power positive pole, and connect through parallelly connected third resistance and second electric capacity to the power negative pole, its first output foot is connected through the fourth resistance to the base of first triode, the projecting pole of first triode is connected to the power negative pole, the collecting electrode of first triode is connected through the fifth resistance to the negative pole of positive white light module, the positive pole of positive white light module is connected to the power is positive, its second output foot is connected through the sixth resistance to the base of second triode, the projecting pole of second triode is connected to the power negative pole, the collecting electrode of second triode is connected through the seventh resistance to the negative pole of warm white light module.

2. The color tunable high voltage LED strip of claim 1, wherein: the positive white light module and the warm white light module are respectively formed by connecting 10 to 12 corresponding LED lamp beads in series, and the working voltage is 180V to 216V.