TWM539022U - LED light tube capable of being used at fluorescent lamp fixture without removing starter - Google Patents

Description

Light-emitting diode fluorescent tube that can be used for the lamp holder without taking off the starter

The present invention relates to a light-emitting diode fluorescent tube, in particular to a light-emitting diode fluorescent tube which can be used for the lamp holder not to be taken away from the starter.

A conventional fluorescent tube has four terminals, one at each end of the fluorescent tube (two at each end). For the traditional fluorescent lamp, as shown in the first figure, the traditional fluorescent lamp generally adopts an inductive ballast (also called an electronic ballast). The circuit connection in the lamp holder is provided with a starter. When starting, the starter is subjected to direct current (AC). The signal is triggered to act, and the ballast generates a transient high-voltage signal to break down the gas in the traditional fluorescent lamp and illuminate the fluorescent lamp. The inner ends of the two terminals on the end face of each end are connected to the filament of the fluorescent lamp, so the fluorescent tube can normally emit light no matter how it is installed. With the development of Light Emitting Diode (LED) technology, LED fluorescent lamps play an increasingly important role in the field of lighting. LED fluorescent lamps have many advantages, such as energy saving, long service life, no noise, etc. Etc., so that more and more places are starting to use LED fluorescent lamps as lighting equipment. The conventional LED fluorescent tube, which is the built-in driving power supply of the current general-purpose LED fluorescent lamp, has two kinds of power supply modes: 1. Both ends of the power supply driving power supply: the two pins of the LED fluorescent lamp at both ends are connected internally, the grid The fire wire (L) and the neutral wire (N) must be connected to the two ends of the LED fluorescent lamp to be able to illuminate normally. Early LED fluorescent lamps were still designed to replace traditional fluorescent lamps, so the built-in power supply from both ends was used. However, people have discovered the risk factor of this type of power supply during installation and use: by inserting the live wire (L) at one end of the LED fluorescent lamp and touching the other end by hand, there is a danger of electric shock. 2. Single-ended power supply: The two pins of the LEDs at both ends of the LED are not connected internally. Only one end of the lamp is internally connected to the drive power supply, and the other end is air-suspended. The live (L) and neutral (N) wires of the grid must be connected to the end of the LED fluorescent lamp that has the driving power supply to be able to illuminate normally. The other end of the connection cannot be lit. Although this driving method avoids the danger of electric shock, it brings no in the installation and use. The first is that the change to the lamp holder is large; the second is that the direction of the LED fluorescent lamp must be paid attention to during installation; the third is that the gap with the traditional installation is too large, which does not meet people's long-term understanding of the fluorescent lamp. In order to provide an item that is more in line with actual needs, the creator conducts research and development to solve the problems that are easy to use in the conventional use.

The main purpose of this creation is to provide a light-emitting diode fluorescent tube that can be used for the lamp holder without taking off the starter, and design a safety type fluorescent lamp, an anti-shock type fluorescent lamp, which can be supplied with power at one or both ends. For example, the fluorescent lamp has four lamp pins, which are 1, 2, 3, and 4 respectively. You can select any two lamp pins to supply power. The other two lamp pins have no power and can be touched. Greatly improve the safety performance, and do not need to change the line of the original lamp, you can not remove the starter. In order to solve the problem that the LED fluorescent tube existing in the prior art cannot be installed at will.

In order to achieve the above purpose, the structure of the creation is: having a circuit in the fluorescent tube, the two ends of the circuit are respectively connected to one side of the fluorescent tube by a high-voltage protection element, and the circuit at both ends is The instantaneous high voltage protection component is respectively passed through an alternating current to direct current rectifying circuit, and the pair of rectifying circuits are connected in parallel through a filtering circuit, a light emitting diode starting circuit and a primary stroboscopic correcting circuit to the respective light emitting diodes.

In order to enable your review committee to further understand the techniques, means and functions of this creation for the purpose of achieving the intended purpose, a better and feasible embodiment is presented, and the detailed description of the drawings is followed, and the purpose and characteristics of the creation are believed. And the advantages, when you can get a deep and specific understanding.

[this creation]

1, 2‧‧‧ Instant high voltage protection components

A1, A2, A3, A4‧‧‧ both ends of the lamp

3‧‧‧Filter circuit

4‧‧‧Lighting diode startup circuit

5‧‧‧Anti-strobe correction circuit

6‧‧‧Lighting diode

AC/DC1, AC/DC2‧‧‧ AC to DC rectifier circuit

The first picture is a conventional circuit diagram.

The second picture is the circuit diagram of the creation.

The third picture is a picture of the lamp holder of the creation.

The fourth picture is the double-end connection diagram of the lamp.

The fifth picture is the connection diagram of the left end of the lamp.

The sixth picture is the connection diagram of the right end of the lamp.

As shown in the second to sixth figures, a creation can be used for the lamp holder to take off. The light-emitting diode fluorescent tube of the actuator has a circuit in the fluorescent tube, and the two ends of the circuit are respectively connected to one side of the fluorescent tube by a high-voltage protection element 1 and 2, and the circuit at both ends is connected. After the instantaneous high voltage protection components 1 and 2, respectively, through an AC to DC rectifier circuit AC/DC1, 2, the pair of rectifier circuits AC/DC1, 2 are connected in parallel via a filter circuit (EMI) 3 and a light emitting diode. Circuit 4 (LED driver) and primary strobe correction circuit 5 (ripple cancellation) to each of the light emitting diodes (LEDs) 6. This creation adopts UL94V0 full plastic lamp tube casing, and has four terminal blocks of lamp tube. The four terminals are grouped in two groups, which are respectively located at the two ends of the lamp casing for receiving input DC or AC power signals. The rectifying circuit AC/DC1, 2 is used for adjusting the input signal to avoid polarity reversal, and the polarity reversal of the input signal can be avoided by the rectifying circuit, that is, regardless of the polarity of the input signal at both ends of the LED tube, The polarity of the signal outputted by the rectifier circuit is always correct, and thus the LED fluorescent tube can be installed at random. It is not necessary to consider the polarity of the LED fluorescent tube. The components of this part must use a high voltage diode with a withstand voltage greater than 600V. Instantaneous high voltage protection components 1, 2 span the ends of the A1/A2 & A3/A4 bases to absorb transient high voltages at the start of the lamp. The LED light-emitting element 6 is disposed inside the lamp tube casing for converting electrical energy into light energy. It is disposed on the lamp holder as the dual-end power supply state of the conventional lamp holder and the fourth figure in the third figure, or the single-end power supply state of the fifth and sixth figures.

In summary, the design uses a special design of the instantaneous high-voltage protection components 1, 2 and rectifier circuits AC / DC1, 2, and the special circuit generated by the filter circuit (EMI) 3, so that it can be installed at will, and can pass UL's 1993 and 8750 are more capable of installing electricity without electricity, ensuring safe use and making it easier to understand and implement. Therefore, it can provide good usability and convenience, and is a completely different institution.

The above description of the preferred embodiment of the present invention is not intended to limit the present invention, and all the scope of the present invention should be based on the following patent scope, and the spirit of the patent scope and its similar variations And the approximate structure should be included in this creation.

1, 2‧‧‧ Instant high voltage protection components

A1, A2, A3, A4‧‧‧ both ends of the lamp

3‧‧‧Filter circuit

4‧‧‧Lighting diode startup circuit

5‧‧‧Anti-strobe correction circuit

6‧‧‧Lighting diode

AC/DC1, AC/DC2‧‧‧ AC to DC rectifier circuit

Claims (1)

The utility model relates to a light-emitting diode fluorescent tube which can be used for the lamp holder not to be separated from the starter, and has a circuit in the fluorescent tube, and the two ends of the circuit are respectively connected to one side of the fluorescent tube through a moment of high-voltage protection element serially connected. The circuit of the foot and the two ends is respectively passed through an alternating current to DC rectifying circuit after the high voltage protection component, so that the pair of rectifying circuits are connected in parallel through a filtering circuit, a light emitting diode starting circuit and a primary stroboscopic correcting circuit to each illuminating Diode.