The neon sign flashed and went off after it was turned on, what was the reason

We know that the brightness and darkness of the neon sign is controlled by the neon transformer, and the current of the transformer is controlled by the scanner (controller).

Then the more popular changes are generally divided into two kinds of jump and gradient, the gradient is more common into two kinds of monochrome gradient and color gradient, of which the color cost is higher, the color gradient is to control the brightness of the lamp in the order of red, green and blue and produce color change, and the same as the general spectral color mixing, red and green will produce yellow when they are bright, green and blue will produce cyan when they are bright, red and blue will produce purple when they are bright together, and the three colors of the lamp will form white light when they are all bright, and all of them will be all black.

Because the requirements for the arrangement of the lamp are more demanding, generally it must be 4 6 cm, too close will cause interference, too far to be able to mix the color well, that is to say, the effect is very poor.

And the jump will also change color out of seven colors, but it can not produce a gradient change, compared to a single upstairs found in the information said to mix color change seven color scans are actually a kind of jump.

Our common jumps are basically monochrome jumps, and the spacing requirements for the lamp arrangement will not be very high, generally 6 10 cm a tube, so the jumps are naturally more cost-effective than gradients.

The pipes are basically 2 pipes or 4 pipes in a group (one transformer is a group).

That's because the lamp head has poor contact, please remove all the lamps after power-off and gently polish them with fine sandpaper, which can be perfectly solved.

Related Notes:

Electric light is a device that converts electrical energy into light energy to provide illumination, which appeared in the second industrial revolution and works on the following principles:When the current passes through the filament (tungsten filament, the melting point is more than 3000), the spiral filament continuously gathers the heat, so that the temperature of the filament reaches more than 2000, and the filament emits light when it is in an incandescent state, just like the red-hot iron can shine.

The higher the temperature of the filament, the brighter the light emitted. Therefore, it is called incandescent lamp, from the perspective of energy conversion, when the lamp emits light, a large amount of electrical energy will be converted into heat energy, and only a very small part can be converted into useful light energy.

The light emitted by electric lamps is panchromatic light, but the proportion of each color is determined by the luminescent substance (tungsten) and temperature. The imbalance in proportions leads to a color cast in the light, so the color of the object is not realistic under incandescent light.

The above content reference: Encyclopedia - Electric light.

<> "1. Why do the lights flicker and flicker.

1. When the lamp flashes and flashes, it is very likely that when the wire is connected, the neutral wire and the live wire are reversed, resulting in the self-inductance current generated by the lamp. You can check whether the red line at the lower switch is connected to the bright color of the red town, if not, directly connect the red wire to the red line at the switch.

2. If you check that the problem that the neutral line and the live wire are reversed, it is likely to be caused by the self-inductive current, and the flickering frequency is higher at this time, if the flickering frequency of the fluorescent lamp is low, the solution can be incandescent lamp, or buy a 220V relay, and the relay coil can be connected in series in the circuit.

3. If it is still flashing, the lamp can also be replaced.

2. What are the precautions for using electric lights?

1. After buying back the lamps, you should first look at the marks of the lamps and read the instructions carefully, and install and use the lamps and lanterns according to the instructions, otherwise there may be danger.

2. Provide light source parameters according to the signs, if the lamp is red at both ends, the lamp is black or black, etc., the lamp should be replaced in time to avoid unsafe factors such as ballast burnout.

3. When cleaning and maintaining the work, do not change the structure of the lamps and lanterns without permission, do not replace the lamps and lanterns at will, and after the cleaning and maintenance, the lamps and lanterns should be installed according to the original state, and there shall be no missing or wrong installation of lamps and lanterns.

4. The maintenance of lamps and lanterns should be strengthened in use to prolong their service life. The lamp should be wiped with a dry cloth to avoid moisture intrusion, rust damage or leakage and short circuit.

The relevant knowledge about what is the cause of the flashing light and what are the precautions for using the electric light is introduced here, I hope it will help.

There are four possible situations that cause the LED light source to flicker or turn on and off

LED lamp beads and LED drive power supply do not match, normal single full 1W lamp bead to withstand current: 280-300mA, voltage: , if the lamp bead chip is not full power, it will cause the light source strobe phenomenon, the current is too high The lamp bead can not withstand a light on and off, and the serious phenomenon will burn the gold wire or copper wire built in the lamp bead, resulting in the lamp bead is not lit.

It may be that the drive power supply is broken, as long as it is replaced with another good drive power supply, it will not flash.

If the drive has an over-temperature protection function, and the material heat dissipation performance of the lamp cannot meet the requirements, the over-temperature protection of the drive will also flash and extinguish, for example: the 20W flood light shell is used to assemble the 30W lamp, and the heat dissipation work is not done well.

If the outdoor lamps also have a strobe on and off phenomenon, it means that the lamps are flooded. The consequence is that it doesn't light up when it flashes. If the drive is waterproof, it is just a matter of breaking the lamp beads and replacing the light source.

LED, abbreviation of lightemittingdiode, also known as light-emitting diode.

Its basic structure is an electroluminescent semiconductor material, which is a solid-state semiconductor device that can directly convert electricity into light.

It is placed on a shelf with leads, and then sealed with epoxy resin around it to protect the internal core, so the LED has good shock resistance.

The heart of an LED is a semiconductor wafer with one end attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the entire wafer is encapsulated by epoxy resin.

The main reasons why the chandelier does not light up after a flash are:

The lamp is damaged, and the filament burns out after flashing, causing the lamp to not light up.

The starter is faulty.

Ballast failure.

The line is faulty, and the relevant line flashes and burns out.

The switch is faulty, the switch is in poor contact, and it cannot be stabilized in the closed state after closing.

Here's a solution:

1. The neutral line is reversed from the live wire: the direction of the neutral live wire must be changed in time. The reverse connection of the zero live wire will not only cause the lights to flicker, but also cause injuries to the maintenance personnel during the maintenance of the lamps.

2. Induced current: A contactor coil can be connected in series at the position of the lamp to eliminate the weak current in the line. 3. There is an indicator light on the switch

Remove or replace the indicator light inside the switch. 4. The wiring is not firm: check the wiring, the screw is loose and only need to be tightened, if the soft wire is burr, the burr part can be removed, or directly replaced with a hard wire.

5. The life of the bulb expires or is broken: replace it with a new bulb.

The switch controls the neutral line, and the live wire goes directly into the lamp. This is one of the most common causes of luminescence. After turning on the zero line of light control, turning off the light only cuts off the power circuit of the lamp, and the live wire is still connected to the lamp, and the lamp will glow, such as a flashing situation.

Solution: Reconnect the circuit and let the switch control the live wire.

The switch has an indicator light or an electronic switch. Many switches have an indicator light inside, and if the indicator light is energized when the light is turned off, there will be current flowing through the lamp. Some luminaires use electronic switches, such as infrared switches, voice-activated switches, and remote switches.

These switches do not completely shut down the circuit. It will also cause the lamp to glow when the light is turned off. Workaround:

Remove the switch indicator or replace the mechanical switch.

Precautions for lamp maintenance

Avoid frequent switching: do not switch frequently when the lamp is in use, because the current through the filament is greater than the current when the lamp is started frequently, so that the temperature of the filament rises sharply and accelerates the sublimation, which will greatly reduce its service life, so it is necessary to minimize the switch of the lamp.

Replace the lamp in time if there is a problem: replace the aging lamp in time according to the light source parameters provided by the sign, and when it is found that the two ends of the lamp are red, the lamp is black or has a black shadow, and the lamp does not jump bright, the lamp should be replaced in time to prevent unsafe phenomena such as the ballast burning out.

intentional attention; Extended: Neon is a low-pressure cold cathode glow discharge light source that emits light. Gas discharge converts electrical energy into colorful spectral lines, and gas discharge is the basic process of neon work.

In daily life, we often see some gas discharge luminescence phenomena: lightning when it rains, arc light during electric welding, and instant ignition when the trolleybus double conductor derails, etc., these are all gas discharge phenomena.

Normally, gases are good insulators and cannot conduct electrical current. However, under conditions such as strong electric fields, optical radiation, particle bombardment, and high-temperature heating, gas molecules will be ionized, producing charged particles that can move freely, and forming an electric current under the action of the electric field, making the insulated gas a good conductor. This phenomenon of an electric current passing through a gas is known as the gas discharge process.

To study the phenomenon of gas discharge luminescence, a glass tube equipped with attitude electrodes at both ends can be vacuumed and filled with different inert gases, and when a certain voltage is applied between the two electrodes, the glass tube will emit colorful light.

Modern commercial neon lights have been basically stereotyped and produced, which are divided into three types: pure neon type, reddish light; neon mercury type, glowing blue; The tube is filled with argon mercury and coated with phosphor, which can be made in a variety of colors from different phosphors. When energized, the neon tube will emit colorful light.

Since its inception in 1910, neon has endured for 100 years. It is a special kind of low-pressure cold cathode glow discharge luminous electric light source, which is different from other arc lamps such as fluorescent lamps, high-pressure sodium lamps, metal halide lamps, mercury lamps, incandescent lamps, etc. Neon lights emit light by discharging a cold cathode glow with a low-pressure inert gas filled into a glass tube under a high-voltage electric field.

The light color of the neon sign is determined by the spectral characteristics of the inert gas charged: the fluorescent tube neon sign is filled with neon gas, and the neon sign emits red light; Fluorescent neon lamps are filled with argon and mercury, and neon lamps emit blue and yellow light, both of which are stimulated by the working gas atoms in the lamp tube.

The reason why the light flashes and goes out is that the switch or the air open inlet and outlet line is loose, the switch refers to a relatively large power switch, leakage protection switch, also known as the gate knife, is a switch device mainly used for "isolating the power supply, reversing the operation, connecting and cutting off the small current circuit pants", and there is no arc extinguishing function.

A power supply is a device that converts other forms of energy into electrical energy. The power supply is based on the principle of "magnetic electricity", and is generated by renewable energy sources such as hydropower, wind power, ocean tides, dam water pressure difference, solar energy, and burning coal and oil residue.