Driving-free light-changing high-voltage LED lamp strip

Abstract

The utility model discloses a drive-free light-changing high-voltage LED lamp strip, which comprises a live wire circuit, a zero line circuit, a plurality of rectifying circuits, a plurality of control circuits, a plurality of first light-emitting modules and a plurality of second light-emitting modules, and the first light-emitting modules and the second light-emitting modules respectively comprise a plurality of first light sources and a plurality of second light sources which are connected in series. The first light source and the second light source are packaged in the same LED lamp bead, each rectification circuit comprises an input end and an output end, each output end comprises a power supply positive electrode and a power supply negative electrode, the input ends of the multiple rectification circuits are connected to the live wire circuit and the null line circuit in parallel, and the power supply positive electrodes and the power supply negative electrodes of the multiple rectification circuits are connected in parallel; each control circuit comprises a first control end and a second control end, the input ends of the plurality of control circuits are connected to the positive electrode and the negative electrode of the power supply in parallel, the first control ends of the plurality of control circuits control the plurality of first light-emitting modules in parallel, and the second control ends of the plurality of control circuits control the plurality of second light-emitting modules in parallel.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED lamps and lanterns, specifically disclose a drive-free light changing high pressure LED lamp strip. BACKGROUND

[0002] Reference Figure 1 The existing light changing high pressure LED lamp strip structure includes the outer skin 01, the core line 02 is wrapped in the outer skin 01, the power line 03 is buried in the side wall of the core line 02, the circuit board 04 is wrapped in the core line 02, the LED lamp pearl 05, control chip 06 and resistance and other electronic components are welded on the circuit board 04, and the circuit board 04 is electrically connected to the power line 03 by the lead. The LED lamp strip is composed of a plurality of parallel shearable units, each shearable unit includes a patch bridge stack, a control chip, a positive white light emitting module and a warm white light emitting module, and the LED lamp strip is cut and used in an integer multiple of the length of a shearable unit. In order to match the working voltage of each shearable unit with 220V mains, the positive white light module and the warm white light module are respectively composed of about seventy LED lamp pearls with corresponding color and working voltage of 3V and a plurality of resistors in series. The existing LED lamp strip has the disadvantages of inflexible cutting size, inconvenient use and high manufacturing cost due to the large number of lamp pearls in a shearable unit, the long length of the shearable unit and the need to configure the patch bridge stack and the control chip in each shearable unit. SUMMARY

[0003] Therefore, it is necessary to provide a drive-free light changing high pressure LED lamp strip with short shearable unit, flexible cutting size, simple structure and low manufacturing cost in view of the problems of the prior art.

[0004] In order to solve the problems of the prior art, the utility model discloses a drive-free light changing high pressure LED lamp strip, which comprises a circuit board, a live wire circuit, a zero line circuit, a plurality of rectifier circuits, a plurality of control circuits and a plurality of light emitting modules are arranged on the circuit board, the light emitting module comprises a first light emitting module and a second light emitting module, the first light emitting module and the second light emitting module respectively comprise a plurality of first light sources and second light sources connected in series, and the working voltage is 220V, the first light source and the second light source are packaged in the same LED lamp pearl, the rectifier circuit comprises an input end and an output end, the output end comprises a positive electrode and a negative electrode, the input ends of the plurality of rectifier circuits are connected in parallel to the live wire circuit and the zero line circuit, and the positive electrodes and the negative electrodes of the plurality of rectifier circuits are connected in parallel; the control circuit comprises a first control end and a second control end, the input ends of the plurality of control circuits are connected in parallel to the positive electrode and the negative electrode, the first control ends of the plurality of control circuits control the plurality of first light emitting modules in parallel, and the second control ends of the plurality of control circuits control the plurality of second light emitting modules in parallel.

[0005] The utility model discloses beneficial effect is: the utility model discloses due to multiple rectifier circuits parallel power supply, multiple control circuits parallel control multiple light emitting module, even if LED lamp area first end or tail end some singlechip or patch bridge stack is cut off, the remaining patch bridge stack and singlechip still can carry out power supply and control to the remaining all light emitting module, need not for each light emitting module configuration one singlechip and patch bridge stack, can reduce material cost greatly.

[0006] The utility model discloses further improve for: the output of rectifier circuit includes power supply positive pole and power supply negative pole, and the power supply positive pole and power supply negative pole of multiple rectifier circuits are connected in parallel, the control circuit includes patch singlechip, and the singlechip includes positive pole foot, negative pole foot, detection foot, first output foot and second output foot, the positive pole foot is connected the power supply positive pole through first resistance, and is connected to the power supply negative pole through the parallel voltage stabilizing diode and first electric capacity, the negative pole foot is connected to the power supply negative pole directly, the detection foot is connected to the power supply positive pole through second resistance, and is connected to the power supply negative pole through the parallel third resistance and second electric capacity, the first output foot is connected to the base of first tetrode through fourth resistance, and the emitter of first tetrode is connected to power supply negative pole, and the collector of first tetrode is connected to the negative pole of first light emitting module, and the positive pole of first light emitting module is connected to the power supply positive pole, the second output foot is connected to the base of second tetrode through fifth resistance, and the emitter of second tetrode is connected to power supply negative pole, and the collector of second tetrode is connected to the negative pole of second light emitting module, and the collector of first tetrode of multiple control circuits is connected in parallel, and the collector of second tetrode of multiple control circuits is connected in parallel, the LED lamp pearl includes support, is provided with first color temperature area and second color temperature area in support, and six blue light chips connected in series are encapsulated in first color temperature area and second color temperature area respectively, and the first color temperature area is covered with positive white fluorescent powder, and the second color temperature area is covered with warm white fluorescent powder, and the first color temperature area is first light source of working voltage 18V, and the second color temperature area is second light source of working voltage 18V, the light emitting module includes ten the LED lamp pearl, and the first light source in ten LED lamp pearl and a plurality of resistors on circuit board are connected in series and constitute first light emitting module, and the second light source in ten LED lamp pearl and a plurality of resistors on circuit board are connected in series and constitute second light emitting module, multiple light emitting module is arranged along the length direction of circuit board, and six patch bridge stacks and a singlechip are arranged in every ten light emitting modules, and at least one patch bridge stack and one singlechip are arranged in the same light emitting module. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is the structural schematic diagram of prior art LED lamp area.

[0008] Figure 2 It is the circuit principle drawing of the utility model.

[0009] Figure 3 The circuit structure schematic view of the utility model.

[0010] Figure 4 The structure schematic view of the utility model LED lamp area.

[0011] Figure 5 The structure schematic view of the utility model LED lamp pearl. Specific implementation

[0012] In order to further understand the features, technical means and specific purposes, functions of the utility model, the utility model is described in further detail below in conjunction with the specific embodiment and the accompanying drawings.

[0013] Reference Figure 2 A kind of drive-free variable light high-pressure LED lamp area circuit, including firewire circuit L, zero line circuit N, multiple rectifier circuits DB, multiple control circuits C and multiple light emitting modules M.The input end of the multiple rectifier circuits DB is connected in parallel to as total circuit firewire circuit L and zero line circuit N, and the output end of multiple rectifier circuits DB is connected in parallel to power supply the multiple control circuits C and multiple light emitting modules M.The light emitting module M includes first light emitting module M1 and second light emitting module M2, and the control circuit C includes first control end and second control end, and the first control end of multiple control circuits C controls the first light emitting module M1 of the multiple light emitting modules M in parallel, and the second control end of multiple control circuits C controls the second light emitting module M2 in the multiple light emitting modules M in parallel.

[0014] Reference Figure 3The rectifier circuit DB is a patch bridge stack, which includes two AC input ends and two DC output ends, and the DC output ends include a power supply positive pole V+ and a power supply negative pole V-. The control circuit C includes a single-chip microcomputer U, which has a positive pole pin PB1, a negative pole pin PB5, a detection pin PB2, a first output pin PB3, a second output pin PB4 and a third output pin PB6. The working voltage of the first light-emitting module M1 is 220V, which is composed of ten first light sources 21 with a working voltage of 18V and a plurality of resistors Rm connected in series, and the working voltage of the second light-emitting module M2 is 220V, which is composed of ten second light sources 22 with a working voltage of 18V and a plurality of resistors Rm connected in series. The two AC input ends of the plurality of rectifier circuits DB are connected in parallel to the live wire circuit L and the neutral wire circuit N, and the power supply positive pole V+ and the power supply negative pole V- of the plurality of rectifier circuits DB are connected in parallel, respectively. The positive pole pin PB1 of the single-chip microcomputer U is connected to the power supply positive pole V+ through a first resistor R1, and is connected to the power supply negative pole V- through a parallel-connected voltage stabilizing diode D and a first capacitor C1, and the negative pole pin PB5 is directly connected to the power supply negative pole V-; the detection pin PB2 is connected to the power supply positive pole V+ through a second resistor R2, and is connected to the power supply negative pole V- through a parallel-connected third resistor R3 and a second capacitor C2; the first output pin PB3 is connected to the base of a first triode Q1 through a fourth resistor R4, the emitter of the first triode Q1 is connected to the power supply negative pole V-, the collector of the first triode Q1 is connected to the negative pole of the first light-emitting module M1, and the positive pole of the first light-emitting module M1 is connected to the power supply positive pole V+; the second output pin PB4 is connected to the base of a second triode Q2 through a fifth resistor R5, the emitter of the second triode Q2 is connected to the power supply negative pole V-, the collector of the second triode Q2 is connected to the negative pole of the second light-emitting module M2, and the positive pole of the second light-emitting module M2 is connected to the power supply positive pole V+. As described above, the light-emitting module of the utility model adopts cathode control, and the collector of the first triode Q1 of the control circuit C is the first control end, and the collector of the second triode Q2 is the second control end. As a further improvement of the utility model, one to six rectifier circuits DB can be arranged at the front end of each control circuit C, and ten to fifteen light-emitting modules M can be arranged at the rear end of each control circuit C. The plurality of control circuits C realize synchronization through the detection of the current waveform in the circuit by the detection pin PB2.

[0015] The utility model discloses since a plurality of rectifier circuits are connected in parallel to supply power, a plurality of control circuits control a plurality of light-emitting modules in parallel, even if the first end or the tail end of the LED lamp strip is cut off, the remaining patch bridge stack and single-chip microcomputer can still supply power and control to all the remaining light-emitting modules, and it is not necessary to configure a single-chip microcomputer and a patch bridge stack for each light-emitting module, so that the material cost can be greatly reduced.

[0016] Reference Figure 3 andFigure 4 A drive-free variable light high-voltage LED lamp strip adopting the circuit comprises a circuit board 1, the front surface of the circuit board 1 is provided with LED lamp beads 2, a wiring pad 11 and the circuit, the back surface of the circuit board 1 is provided with a live circuit L and a zero circuit N, and the circuit board 1 is wrapped with an outer skin 3. The lamp strip is connected to the mains through the wiring pad 11 on the circuit board, and the total current is transmitted through the live circuit L and the zero circuit N, without the core wire and the lead wire in the prior art, and the product structure and the manufacturing process are simpler.

[0017] Reference Figure 3 And Figure 5 The LED lamp bead 2 comprises a support 20, the first color temperature area 2a and the second color temperature area 2b are arranged in the support 20, six blue light chips 23 are respectively encapsulated in the first color temperature area 2a and the second color temperature area 2b and are connected in series, and two positive electrode pins 2c and negative electrode pins 2d are respectively arranged on the two sides of the support 20. The first color temperature area 2a is covered with positive white fluorescent powder, the second color temperature area 2b is covered with warm white fluorescent powder, the first color temperature area 2a is a first light source 21 capable of emitting positive white light, and the second color temperature area 2b is a second light source 22 capable of emitting warm white light. The working voltage of the blue light chip 23 is 3V, and the working voltage of the first light source 21 and the second light source 22 in the LED lamp bead 2 is 18V. The light-emitting module M comprises ten LED lamp beads 2 connected in series, wherein the first light source 21 in the ten LED lamp beads 2 and a plurality of resistors Rm on the circuit board are connected in series to form a first light-emitting module M1 with a working voltage of 220V; the second light source 22 in the ten LED lamp beads 2 and a plurality of resistors Rm on the circuit board are connected in series to form a second light-emitting module M2 with a working voltage of 220V. The LED lamp beads 2 are uniformly arranged on the circuit board, and the patch bridge stacks and the single-chip microcomputer U and other electronic components are arranged in the intervals of the LED lamp beads 2 in the light-emitting module M. The plurality of light-emitting modules M are arranged along the length direction of the circuit board, six patch bridge stacks and one single-chip microcomputer are arranged in every ten light-emitting modules M, and at least one patch bridge stack and one single-chip microcomputer are arranged in the same light-emitting module M. In this way, the smallest scissile unit of the utility model at least comprises one control circuit, one rectifier circuit and one light-emitting module M.

[0018] Since two color temperature light sources are packaged in the same LED lamp bead 2, the number of LED lamp beads of each light emitting module M can be reduced by half of the prior art; and since the working voltage of the two light sources in the LED lamp bead is 18V, the number of lamp beads of the light emitting module with the same 220V working voltage can be reduced to one sixth of the prior art, so that the scissorable unit of the utility model can be reduced to one twelfth of the prior art. Since multiple rectifier circuits are connected in parallel for power supply, and multiple control circuits are connected in parallel to control multiple light emitting modules, even if a light emitting module containing a single-chip microcomputer or a patch bridge stack at the head or tail of the LED lamp strip is cut off, the single-chip microcomputer and the patch bridge stack in the remaining light emitting modules can still control and power the light emitting modules that do not contain the single-chip microcomputer and the patch bridge stack, so that a single-chip microcomputer and a patch bridge stack do not need to be configured for each light emitting module, and the manufacturing cost can be greatly reduced. Since six patch bridge stacks are connected in parallel for power supply for every ten light emitting modules, the power of a single patch bridge stack can be reduced, the patch bridge stack can be miniaturized, and the width size of the circuit board can be reduced.

[0019] Reference Figure 3 The control principle of the utility model is that the live circuit L and the neutral circuit N are connected to the mains, wherein a power switch is arranged on the live circuit or the neutral circuit N, and the single-chip microcomputer controls the light by detecting the multiple switching of the power switch. The single-chip microcomputer is provided with three control modes: the first control mode (positive white light 100%), the second control mode (warm white light 100%), and the third control mode (warm white light 100% and positive white light 100%). When the power switch is closed for the first time, the single-chip microcomputer controls according to the first mode, when the power switch is closed for the second time, the single-chip microcomputer detects the charging and discharging time of the second capacitor C2 through the detection foot PB2 to judge the switching period, if the switching period is within the set time, the operation is progressed to the second control mode, if the switching period exceeds the set time, the operation returns to the first control mode, and the third control mode is the same.

[0020] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the utility model. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A drive-free high-voltage LED light strip, comprising a circuit board, wherein a live wire circuit, a zero line circuit, a plurality of rectifier circuits, a plurality of control circuits and a plurality of light-emitting modules are arranged on the circuit board, the light-emitting module comprises a first light-emitting module and a second light-emitting module, the first light-emitting module and the second light-emitting module respectively comprise a plurality of first light sources and second light sources connected in series, and the working voltage thereof is 220V, characterized in that: The first light source and the second light source are packaged in the same LED lamp bead, the rectifier circuit includes an input end and an output end, the output end includes a positive electrode and a negative electrode, the input ends of the plurality of rectifier circuits are connected in parallel to the live circuit and the zero circuit, and the positive electrodes and the negative electrodes of the plurality of rectifier circuits are connected in parallel. ​ 2. The driverless variable light high-voltage LED lamp strip according to claim 1, characterized in that: The output end of the rectifier circuit includes a positive electrode and a negative electrode, and the positive electrodes and the negative electrodes of the plurality of rectifier circuits are connected in parallel; the control circuit includes a single-chip microcomputer, the single-chip microcomputer includes a positive electrode, a negative electrode, a detection electrode, a first output electrode and a second output electrode; the positive electrode is connected to the positive electrode through a first resistor and connected to the negative electrode through a parallel-connected voltage stabilizing diode and a first capacitor, the negative electrode is directly connected to the negative electrode, the detection electrode is connected to the positive electrode through a second resistor and connected to the negative electrode through a parallel-connected third resistor and a second capacitor, the first output electrode is connected to the base of a first triode through a fourth resistor, the emitter of the first triode is connected to the negative electrode, the collector of the first triode is connected to the negative electrode of the first light emitting module, the positive electrode of the first light emitting module is connected to the positive electrode, the second output electrode is connected to the base of a second triode through a fifth resistor, the emitter of the second triode is connected to the negative electrode, the collector of the second triode is connected to the negative electrode of the second light emitting module, the collectors of the first triodes of the plurality of control circuits are connected in parallel, and the collectors of the second triodes of the plurality of control circuits are connected in parallel.

3. The driverless variable light high-voltage LED lamp strip according to claim 2, characterized in that: The LED lamp bead includes a support, a first color temperature area and a second color temperature area are arranged in the support, six blue light chips connected in series are packaged in the first color temperature area and the second color temperature area respectively, positive white fluorescent powder is covered on the first color temperature area, warm white fluorescent powder is covered in the second color temperature area, the first color temperature area is a first light source with a working voltage of 18V, and the second color temperature area is a second light source with a working voltage of 18V.

4. The driverless variable light high-voltage LED lamp strip according to claim 3, characterized in that: The light emitting module includes ten LED lamp beads, the first light source in the ten LED lamp beads and a plurality of resistors on the circuit board are connected in series to form the first light emitting module, and the second light source in the ten LED lamp beads and a plurality of resistors on the circuit board are connected in series to form the second light emitting module.

5. The driverless high-voltage LED light strip of claim 4, wherein: The plurality of light emitting modules are arranged along the length direction of the circuit board, six patch bridge stacks and one single-chip microcomputer are arranged in each ten light emitting modules, and at least one patch bridge stack and one single-chip microcomputer are arranged in the same light emitting module.

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