CN201228880Y - Decorative lamp string device - Google Patents

Abstract

The utility model relates to a decorative lamp string device, which comprises a power plug for receiving alternating voltage, a tail plug coupled with the power plug, and a light emitting diode serial, wherein one end of the light emitting diode serial is coupled with the power plug, and the other end of the light emitting diode serial is coupled with the tail plug. The power plug and the tail plug are respectively provided with a diode and a capacitor coupled with the diode, so that the direct current voltage which is twice of the peak value of the alternating current voltage is output to the light emitting diode in series.

Description

Decorative String Lighting Installation

【Technical field】

The utility model relates to a decorative lamp string device, in particular to a decorative lamp string device with a double voltage design.

【Background technique】

Light Emitting Diode (LED) mainly uses the combination of electrons and holes in semiconductor materials. The electrons will fall to a lower energy level and release light energy to produce lighting effects. Moreover, because LEDs can provide light sources of different colors according to the band gap energy of materials, today's LEDs can already provide a full-color series of light sources for consumers to choose from. Compared with traditional light bulbs, LEDs are smaller in size, Compared with the advantages of power saving, drop resistance, luminescence, and fast response, it has gradually been widely used in various products.

Among them, LEDs have been applied to decorative light strings. As shown in FIG. Then the power plug 12 and an LED string 18 . The power converter 16 is used to convert the AC power into a DC power and output it to the LED series 18 .

Under the original voltage, once the number of light-emitting diodes in the light string is increased, the brightness of the light-emitting diodes will be insufficient. Therefore, the usual method is to increase the voltage to increase the number of light-emitting diodes in the light string without reducing Brightness, however, this method of increasing the voltage will consume more power and increase costs.

Therefore, the utility model proposes an innovative decorative light string device to solve the above limitations and deficiencies.

【Content of invention】

The purpose of this utility model is to provide a decorative light string device, mainly through the design of the voltage doubler circuit, so that the number of LEDs in the LED series can be increased without increasing the supply voltage, so the cost can be reduced.

According to the utility model, the decorative light string device includes a power plug for receiving AC voltage and a tail plug coupled with each other, and a light-emitting diode series coupled with the power plug and the tail plug. Wherein, the power plug has a first diode and a first capacitor coupled with a phase, and the tail plug has a second diode and a second capacitor coupled with a phase, so that the output is twice the peak value of the AC voltage A magnitude of DC voltage is given to the LEDs in series.

The purpose of the present utility model or other purposes are obvious to those of ordinary skill in the art after reading the detailed content of the following examples.

Both the previous summary and the following detailed description are examples, so as to further explain the claims of the utility model.

【Description of drawings】

Fig. 1 is a structural schematic diagram of a conventional decorative light string device.

Fig. 2 is a schematic diagram of the appearance structure of the decorative lamp string device of the present invention.

Fig. 3 is a schematic circuit diagram of the decorative lamp string device of the present invention.

In the picture:

10 decorative string light installation

12 power plug

14 tail plug

16 power converter

18 LED serial

20 decorative string lights

22 power plug

221 diode

23 conductive insert

24 tail plug

241 diode

26 LEDs in series

26a LED

【Detailed ways】

Please refer to FIG. 2 , which is a schematic diagram of the three-dimensional appearance of the decorative light string device of the present invention. As shown in the figure, the decorative light string device 20 of the present invention includes a power plug 22 with a pair of conductive inserts 23, and a tail plug 24 coupled to the power plug 22, wherein the tail plug 24 can be inserted into another plug. , and a light emitting diode series 26, which is composed of a plurality of light emitting diodes 26a, and one end of the light emitting diode series 26 is coupled to the power plug 22, and the other end is coupled to the tail plug 24. Wherein, the LEDs 26a are selected from white LEDs, red LEDs, blue LEDs, green LEDs, yellow LEDs or LEDs of other colors.

Please refer to FIG. 3 , which is a schematic circuit diagram of the decorative light string device of the present invention. As shown in the figure, the power plug 22 has a diode 221 for rectification and a capacitor C1 coupled thereto, and the tail plug 24 has a diode 241 for rectification and a capacitor C2 coupled thereto, wherein the capacitance of the capacitors C1 and C2 The values are equal, used to store charge and have a filtering function. The power plug 22 receives the AC voltage through the conductive insert 23, and the diode 221 receives the AC voltage to control the direction of the current to charge the capacitor C1, so as to output a DC voltage whose voltage is twice the peak value of the AC voltage to the LED series 26. In principle, the tail plug 24 receives the AC voltage from the power plug 22, and the diode 241 receives the AC voltage to control the direction of the current to charge the capacitor C2 to output a DC voltage twice the peak value of the AC voltage to the LED string 26. In this way, the number of LEDs in the LED string 26 can be doubled.

It can be seen from this that the utility model can provide twice the DC voltage to the series of LEDs by setting the voltage doubler circuit composed of capacitors and diodes on the power plug and the tail plug, so that the brightness of the LEDs will increase. Brighter, or the number of LEDs can be increased without increasing the supply voltage and increasing the cost burden.

The above-mentioned embodiments are only to illustrate the technical ideas and characteristics of the present utility model, and its purpose is to enable those skilled in this art to understand the content of the present utility model and implement it accordingly, and should not limit the scope of the present utility model. The scope of the patent, that is, all equivalent changes or modifications made according to the spirit disclosed in the utility model should still be covered in the scope of the patent of the utility model.

Claims (2)

1. A decorative light string device, comprising a power plug receiving AC voltage and a tail plug coupled with one phase, and a series of light-emitting diodes, one end of which is coupled to the power plug, and the other end is coupled to the tail plug; Features: The power plug has a first diode and a first capacitor coupled with a phase, and the tail plug has a second diode and a second capacitor coupled with a phase, so that the output is two peaks of the AC voltage times the size of the DC voltage to the LED series. 2. The decorative light string device according to claim 1, wherein each light emitting diode in the series of light emitting diodes is selected from white light emitting diodes, red light emitting diodes, blue light emitting diodes, and green light emitting diodes. Diodes, yellow light emitting diodes or light emitting diodes of other colors.

Images