WO2022037615A1

WO2022037615A1 - Led lamp string having anti-interference voltage-stabilizing conduction performance

Info

Publication number: WO2022037615A1
Application number: PCT/CN2021/113260
Authority: WO
Inventors: 卢塍; 杨吕生
Original assignee: 临海市大为光电科技有限公司
Priority date: 2020-08-19
Filing date: 2021-08-18
Publication date: 2022-02-24
Also published as: CN111928126A

Abstract

An LED lamp string having anti-interference voltage-stabilizing conduction performance, comprising a positive wire, a negative wire, and a plurality of LED lamp beads. The positive and negative electrodes of the LED lamp beads are directly connected to the positive wire and the negative wire, respectively; the respective internal and external connection surfaces of the LED lamp beads are provided with resistors or/and capacitors (3); and both ends of the resistors or/and the capacitors (3) are respectively connected to the positive electrodes or the negative electrodes of the LED lamp beads. By means of use of the characteristics of the resistors or/and the capacitors (3) in a circuit, an LED can be effectively prevented from being burnt out due to excessive current and can be normally powered on in the use process; moreover, the anti-interference performance of the LED is greatly improved, so that the brightness of the LED lamp is stable.

Description

An LED light string with anti-interference voltage regulation conduction performance

technical field

The invention relates to the field of LED technology, in particular to an LED light string with anti-interference voltage regulation and conduction performance.

Background technique

Light Emitting Diode English full name LightEmittingDiode (referred to as LED), is a new type of solid-state light source. Born in the 1960s, in 1923, Rousseff (Lossen.o.w) studied the light emission of the impurity P-N junction in the semiconductor SiC, and developed a light-emitting diode, which has been ignored. With the rapid development of the electronics industry, in the 1960s, the rapid development of display technology led to people's attention gradually. The advantages of LED are long life (>100,000Hrs), low driving voltage (1.8~4.5V), low power consumption (40~1000mW), relatively small radiation from cold light sources, and fast lighting speed (time constant is 10-7 ~10-9S), avoid suspected lighting effect, small size, multiple colors, excellent shock resistance (full solid package, not easy to break), good monochromaticity (stable light-emitting wavelength), green and pollution-free.

The LED light string is formed by connecting multiple LED light beads. It is usually used for the decoration of various festivals such as Christmas, and is also used in home decoration and urban lighting projects and various entertainment venues. The incandescent light string has incomparable advantages, it has bright colors, can realize a variety of color changes, and effectively reduce energy consumption. The various programs and different occasions add to the festive atmosphere. However, the LED has a working voltage limit. If the working voltage exceeds the working voltage, the forward P-N junction current is too large, and the LED is easy to burn. Moreover, the LED sometimes has insufficient lamp brightness or unstable brightness.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems existing in the prior art, the present invention proposes an LED light string with anti-interference voltage stabilization and conduction performance, and its specific technical scheme is as follows.

An LED light string with anti-interference voltage stabilization and conduction performance, comprising a positive wire, a negative wire and a plurality of LED lamp beads, the positive and negative electrodes of the LED lamp beads are directly connected to the positive wire and the negative wire respectively, and the LED light Each connecting surface inside and outside the bead is provided with a resistor or/and a capacitor, and both ends of the capacitor or/and the resistor are respectively connected to the positive or negative electrode of the LED lamp bead.

Further, the capacitors include chip mounted capacitors, soldered capacitors and wire wound capacitors.

Further, the capacitor or/and the resistor are conductively connected to the upper part of the LED lamp bead.

Further, the capacitor or/and the resistor are conductively connected to the lower part of the LED lamp bead.

A processing technology of an LED light string with anti-interference voltage regulation and conduction performance, comprising the following steps:

S1. Discharging: According to the actual LED chips to be packaged, select the required brackets, mark them at the bottom of the brackets according to the process requirements, and arrange the brackets neatly;

S2. Brushing solder paste: apply solder paste on the bracket through a solder paste printer;

S3.SMT patch: Weld the resistor or/and capacitor on the top or bottom of the bracket;

S4. Baking dehumidification: preheat and dehumidify the support, and the preheating temperature is 60 degrees;

S5. Solid crystal treatment: fix the LED chip on the top of the bracket;

S6. Baking: the support after the solid crystal is baked, and the baking temperature is 150 degrees;

S7. Wire bonding: use a wire bonding machine to weld the LED chips on the bracket;

S8. Sealing glue: after the welding of the LED chip and the bracket is completed, a mold strip and epoxy resin sealing glue are used;

S9. Secondary baking: Bake and solidify the glue-injected bracket at a temperature of 130 degrees to remove excess moisture;

S10. Removal: remove material through LED stripper;

S11. Foot cutting: separate the positive and negative feet of the bracket with an automatic foot cutting machine;

S12. Spectroscopy: use a photoelectric color separator to sort the LED lamp beads, and complete the sorting of the corresponding color LED lamp beads according to the process requirements;

S13. Taping or packaging: Tape the LED light beads into a string through the LED light bead tape machine, or pack the LED light beads with color separation into an electrostatic bag according to 2000PCS for packaging.

Further, the bracket includes an in-line LED bracket and a SMD LED bracket.

The present invention provides an LED light string with anti-interference voltage stabilization and conduction performance, which utilizes the characteristics of resistance and capacitance in the circuit to effectively prevent the LED from being burned out due to excessive current during use, and at the same time greatly improves the resistance of the LED. Interference, so that the brightness of the LED lamp of the present invention is stable.

Description of drawings

1 is a schematic diagram of an LED lamp bead of the present invention;

Fig. 2 is the top schematic diagram of the capacitor or resistor of the present invention installed on the LED lamp bead;

3 is a schematic diagram of the lower part of the LED lamp bead with the capacitor or resistor of the present invention installed;

4 is a schematic diagram of the capacitor or resistor of the present invention being installed on the top of the SMD LED bracket;

In the figure, 1-conductive wire, 2-chip, 3-resistor or/and capacitor, 4-support, 5-substrate.

detailed description

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

As shown in Figure 1-4, an LED light string with anti-interference voltage stabilization and conduction performance includes a positive wire, a negative wire and a number of LED lamp beads. The positive and negative electrodes of the LED lamp beads are directly connected to the positive wire and the The negative lead is connected, and each connecting surface inside and outside the LED lamp bead is provided with a resistor or/and a capacitor 3, and the two ends of the capacitor or/and the resistor 3 are respectively connected to the positive or negative electrode of the LED lamp bead.

The capacitors include chip mounted capacitors, soldered capacitors and wire wound capacitors.

The capacitor or/and the resistor 3 are conductively connected to the upper part of the LED lamp bead.

The capacitor or/and the resistor 3 are conductively connected to the lower part of the LED lamp bead.

S1. Discharging: According to the actual LED chip 2 to be packaged, select the required bracket 4, mark the bottom of the bracket 4 according to the process requirements, and arrange the brackets neatly;

S2. Brushing solder paste: apply the solder paste on the bracket 4 through a solder paste printer;

S3.SMT patch: Weld the resistor or/and capacitor 3 on the top or bottom of the bracket 4;

S4. Baking dehumidification: preheating and dehumidifying the support 4, and the preheating temperature is 60 degrees;

S5. Solid crystal treatment: fix the LED chip 2 on the top of the bracket 4;

S6. Baking: the support 4 after the solid crystal is baked, and the temperature of baking is 150 degrees;

S7. welding wire: use a wire bonding machine to weld the LED chip 2 on the bracket 4;

S8. Sealing glue: after the welding of the LED chip 2 and the bracket 4 is completed, a mold strip and an epoxy resin sealing glue are used;

S9. Secondary baking: Bake and solidify the bracket 4 after glue injection at a temperature of 130 degrees to remove excess moisture;

S10. Removal: remove material through LED stripper;

S11. Foot cutting: separate the positive and negative feet of bracket 4 with an automatic foot cutting machine;

As shown in FIGS. 1-3 , the bracket is an in-line LED bracket. As shown in FIG. 4 , the bracket is a SMD LED bracket, and the SMD LED bracket is fixed on the substrate 5 .

Claims

An LED light string with anti-interference voltage stabilization and conduction performance, comprising a positive wire, a negative wire and a plurality of LED lamp beads, the positive and negative electrodes of the LED lamp beads are directly connected to the positive wire and the negative wire respectively, and it is characterized in that, Each connecting surface inside and outside the LED lamp bead is provided with a resistor or/and a capacitor, and both ends of the capacitor or/and the resistor are respectively connected to the positive or negative electrode of the LED lamp bead.
The LED light string with anti-interference voltage stabilization and conduction performance according to claim 1, wherein the capacitors include chip capacitors, welding capacitors and wire wound capacitors.
The LED light string with anti-interference voltage stabilization and conduction performance according to claim 2, wherein the capacitor or/and the resistor are conductively connected to the upper part of the LED lamp bead.
The LED light string with anti-interference voltage stabilization and conduction performance according to claim 2, wherein the capacitor or/and the resistor are conductively connected to the lower part of the LED lamp bead.
The processing technology of an LED light string with anti-interference voltage stabilization and conduction performance as claimed in claims 1-4, characterized in that, it comprises the following steps:

S1. Discharge: According to the actual LED chips to be packaged, select the required bracket, mark the bottom of the bracket according to the process requirements, and arrange the brackets neatly;

S2. Brushing solder paste: apply solder paste on the bracket through a solder paste printer;

S3.SMT patch: Weld the resistor or/and capacitor on the top or bottom of the bracket;

S4. Baking and dehumidification: preheat and dehumidify the bracket, and the preheating temperature is 60 degrees;

S5. Solid crystal treatment: fix the LED chip on the top of the bracket;

S6. Baking: Bake the solid crystal support, and the baking temperature is 150 degrees;

S7. Wire bonding: use a wire bonding machine to weld the LED chips on the bracket;

S8. Sealing: after the welding of the LED chip and the bracket is completed, mold strips and epoxy resin sealing are used;

S9. Secondary baking: Bake and solidify the glue-injected bracket at a temperature of 130 degrees to remove excess moisture;

S10. Removal: remove material through LED stripper;

S11. Foot cutting: separate the positive and negative feet of the bracket with an automatic foot cutting machine;

S12. Spectroscopy: use a photoelectric color separator to sort the LED lamp beads, and complete the sorting of the corresponding color LED lamp beads according to the process requirements;

S13. Taping or packaging: Tape the LED light beads into a string through the LED light bead tape machine, or pack the LED light beads with color separation into an electrostatic bag according to 2000PCS for packaging.
The LED light string with anti-interference voltage stabilization and conduction performance according to claim 5, wherein the bracket comprises an in-line LED bracket and a SMD LED bracket.