CN201053595Y - LED energy-saving fluorescent lamp - Google Patents

Abstract

The utility model discloses a LED energy-saving fluorescent lamp suitable for illumination. A circuit board is arranged in the transparent fluorescent tube. A plurality of LED lamps are arranged on the circuit board. The positive electrode of the LED bulb is connected in series with one end of a current-limiting resistor, the other end of the current-limiting resistor is connected in series with one end of a filter capacitor, the other end of the filter capacitor is connected in series with the negative electrode of the LED bulb to form a loop, then the two ends of the filter capacitor are connected to a rectifier, and the rectifier is connected to an alternating current power supply in daily use. The LED light source has the advantages of high brightness, small working current and the like due to the fact that the LEDs are adopted to emit light.

Description

A kind of LED energy-saving fluorescent lamp

technical field

The utility model relates to a lamp, in particular to an LED fluorescent lamp suitable for lighting.

Background technique

Currently, lamps made of LEDs (Light Emitting Diodes) are widely used in various fields due to their low power consumption and long service life. However, because LED is a single illuminant, its light-emitting area is small, and its lighting effect is poor, so it is limited to the use of decorative lamps. At present, the general lighting fluorescent lamps that are widely used can achieve better lighting effects, but due to their own characteristics, there are disadvantages such as large power consumption, difficulty in starting when the voltage is low, and short service life, etc., which need further improvement. .

Contents of the invention

The purpose of the utility model is to provide a LED energy-saving fluorescent lamp suitable for lighting in order to solve the shortcomings of the existing ordinary fluorescent lamps, which has low power consumption and long service life. There is no problem that it is difficult to start or cannot be lit when the voltage is low.

In order to achieve the above object, the utility model is realized by the following technical solutions.

An LED energy-saving fluorescent lamp, its first structural feature is that it includes a lamp holder and a lamp tube, a circuit board is arranged in the long cylindrical transparent fluorescent lamp tube, and LED bulbs are arranged on the circuit board.

The second structural feature is that the LED light bulbs are first connected in series to form a light string, and then multiple light strings are connected in parallel on the circuit board.

The third structural feature is that the LED bulbs are arranged in two rows.

The fourth structural feature is that the anode of the LED bulb is connected in series with one end of the current limiting resistor, the other end of the current limiting resistor is connected in series with one end of the filter capacitor, and the other end of the filter capacitor is connected in series with the negative electrode of the LED bulb to form a loop, and then connect both ends of the filter capacitor to the rectifier, and then connect the rectifier to the daily AC power supply.

The above-mentioned LED energy-saving fluorescent lamp lighting has the following advantages:

1. Multiple LED lights are used to emit light, which has the characteristics of low working current and high brightness.

2. The LED energy-saving fluorescent lamp has a long service life, which is more than 10 times longer than ordinary fluorescent lamps, which is conducive to reducing the consumption of raw materials and is an environmentally friendly lamp.

3. This LED energy-saving fluorescent lamp has a working voltage between AC150-250V, and there are no problems such as difficulty in starting light, too long start-up time, flickering or even low voltage and cannot be turned on.

4. The utility model has a simple structure, is easy to manufacture, and can be conveniently installed on an existing fluorescent lamp.

Description of drawings

The specific embodiment of the utility model will be further elaborated below in conjunction with the accompanying drawings.

Fig. 1 is the front view of the utility model lamp tube.

Fig. 2 is a top view of the lamp tube of the present invention.

Fig. 3 is a sectional view of the structure of the lamp tube of the present invention.

Fig. 4 is the schematic circuit diagram of the utility model.

Detailed ways

An LED energy-saving fluorescent lamp as shown in FIG. 1 includes a lamp holder and a lamp tube. A circuit board is arranged inside a long cylindrical transparent fluorescent lamp tube, and a plurality of LED lamps are arranged on the circuit board. The shape of the transparent fluorescent lamp is the same as that of the existing common fluorescent tube, and will not be repeated here. The utility model is that the lamp pins of the LED light bulb are welded on the circuit board, and the circuit board is then clamped to the two ends of the lamp tube. As shown in Figure 4, the given 216 LED bulbs form two rows and a total of 72 groups of light strings. Each group of light strings is composed of 3 LEDs connected in series. , the negative pole of LED2 is connected with the positive pole of LED3 to form a light string, and so on, LED106~LED108 are connected in series to form a light string, LED109~LED111 are connected in series to form a light string, LED214~LED216 are connected in series to form a light string, The above lamps are connected in two rows in parallel, and then the positive pole is connected to one end of the current limiting resistor R2, the other end of the current limiting resistor is connected in series with one end of the filter capacitor, and the other end of the filter capacitor is connected in series with the negative pole of the LED bulb to form a loop , and then connect the two ends of the filter capacitor to the rectifier, and then connect the rectifier to the daily AC power supply.

The working principle of the utility model: after the power supply is turned on, the alternating current is converted into direct current through rectifier rectification, and then filtered by the filter capacitor, and then blocked by the current limiting resistor to obtain a stable current suitable for the circuit to make the LED emit light normally, reaching The effect of lighting.

The connection mode of the LED lamp in this embodiment is only one of many structures, and other connection modes or only structural changes all fall within the protection scope of the present invention.

Claims (4)

1. A kind of LED energy-saving fluorescent lamp, comprise lamp holder (1) and lamp tube (2), it is characterized in that, be provided with circuit board (3) in elongated cylinder type transparent lamp tube, be provided with on circuit board Multiple LED bulbs (4). 2. The LED energy-saving fluorescent lamp according to claim 1, characterized in that the LED light bulbs (4) are first connected in series to form light strings, and then a plurality of light strings are connected in parallel on the circuit board. 3. The LED energy-saving fluorescent lamp according to claim 1, characterized in that, the LED bulbs (4) are arranged in two rows. 4. The LED energy-saving fluorescent lamp according to claim 1, wherein the anode of the LED bulb (4) is connected in series with one end of the current limiting resistor (5), and the other end of the current limiting resistor (5) is connected to the filter One end of the capacitor (6) is connected in series, and the other end of the filter capacitor (6) is connected in series with the negative electrode of the LED bulb (4) to form a loop, and then the two ends of the filter capacitor (6) are connected to the rectifier (7), and then the The rectifier (7) is connected to the daily AC power supply.

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