CN201196946Y - General energy-saving non-polar lamp - Google Patents

Abstract

The utility model discloses a universal energy-saving electrodeless lamp, which mainly relates to the technical field of energy-saving environment-friendly electric light sources. As shown in the attached drawing, both ends of a light tube are sealed with leads which extend into the lamp, and outer surfaces of the both ends of the light tube are respectively wound with a group of starting coils. The working frequency of an ignition circuit is between 0.1 and 0.5MHz, and an energy feeding coil and a secondary coil are wound on a magnetic core of a high-frequency current transformer. The ignition circuit is connected with the energy feeding coil, and the leads are connected with the starting coils and the secondary coil. After the electrification, high frequency current produced by the ignition circuit passes through the energy feeding coil and excites secondary current in the secondary coil, the secondary current passes through the starting coils and then produces a high-frequency electric field, and larger working current is formed in the light tube to ensure that the light tube works in a state of arc light discharge, thereby producing stronger light radiation. The utility model can directly retrofit all power saving fluorescent lamps and fluorescent tubes into electrodeless lamps and greatly improve the service life of the power saving fluorescent lamps and the fluorescent tubes.

Description

Universal Energy Saving Electrodeless Lamp

1. Technical field: The utility model relates to a gas discharge lamp without electrodes in the lamp, which belongs to a new type of daily lighting source.

2. Background technology:

The electrodeless lamp is a brand-new electric light source that is currently being developed by countries all over the world. According to published information, the electrodeless lamp is mainly composed of a glass lamp tube and a lighting circuit. Because there are no electrodes necessary for conventional electric lamps in the lamp, it is fed into the lamp. The electrical energy generally needs to convert the commercial power with a frequency of tens of hertz into a high frequency of hundreds of kilohertz or even several megahertz through a circuit, and send it into the lamp through a high-frequency electric field or magnetic field, so that the working gas in the lamp produces gas. Discharge to complete the conversion of electrical energy and light energy.

The electrodeless lamp has very superior performance. Because there is no electrode in the lamp, its working life is very long, more than tens of thousands of hours, and its luminous efficiency is high. The disadvantages of existing electrodeless lamps are that the manufacture of the lamp is difficult, the working circuit is complicated, and the cost is high. For example, the price of each electrodeless lamp produced abroad is as high as RMB 3,000 or more, so it is difficult to promote the product.

The energy-saving lamps and fluorescent lamps currently on the market have a short life due to the limited life of the filament, generally within a few thousand hours, especially energy-saving lamps, which often have cold start, serious cathode sputtering, and life-span are even more prominent problems.

Although the "Energy-saving Deformation Flow Electrodeless Lamp" with the patent number (ZL2006200333528) solves the above problems, its structure has the following disadvantages: First, the two ends of the lamp tube need to be inserted into the magnetic ring, because the distance between the two ends of the lamp tube is generally very close, The insertion of the magnetic ring is difficult, and the volume and size of the magnetic ring are limited, which brings problems to the design and selection of the magnetic ring. The second is that the two ends of the lamp tube need to be inserted into the magnetic ring, which adds difficulties to the structure of the whole lamp, the safety of use, and the solution to high-frequency electromagnetic interference.

3. Contents of the invention:

The energy-saving electrodeless lamp proposed by the utility model is to solve the above-mentioned problems, especially the solution to the shortcoming of the "energy-saving deformation flow electrodeless lamp". Fig. 1 is a schematic diagram of its structural circuit, which has an electrodeless lamp tube 1 filled with mercury vapor and argon or krypton, the inner wall of the lamp tube is coated with fluorescent powder, a lighting circuit 4, and a high-frequency converter 2.

Its characteristics are;

1. The lighting circuit 4 adopts an electronic oscillating circuit with a working frequency of 0.1MHz to 0.5MHz. The high-frequency converter 2 is a magnetic core 2.1, on which is wound a power feeding coil 2.2 and a secondary coil 2.3. The power feeding coil 2.2 and the lighting The lead wire 3 at the output end of the circuit is connected, and the secondary coil 2.3 is connected with the lead wire 6 inside the lamp tube 1 .

2. The lamp tube 1 is the same in size and shape as the existing energy-saving lamp tube and straight tube fluorescent lamp, which are straight tube shape, ring shape, round shape, H shape, single U shape, double D shape, double U shape, triple U shape, Many are U-shaped, and these lamp tubes can be combined with the lighting circuit 4 and the high-frequency converter 2 to form an integrated whole lamp.

3. There are lead wires 6 extending into the lamp at both ends of the lamp tube 1. After sealing with the glass tube, the lamp tube is evacuated, and a set of starting coils 7 are wound on the outer surface of both ends of the lamp tube 1. One end of each group is connected to the secondary coil 2.3 connection, the other end is unconnected.

4. The outer surface of the lamp tube 1 is coated with a grounded transparent conductive layer 1.2 to improve its high-frequency electromagnetic interference.

5. The lighting circuit 4 with a frequency of 0.1MHz to 0.5MHz is composed of a rectifier 4.1, a high frequency filter 4.2, a driver 4.3, an oscillator 4.4 and a matching network 4.5.

After electrification, the lighting circuit 4 generates a high-frequency voltage of 0.1MHz to 0.5MHz, and the energy-feeding coil 2.2 is equivalent to the primary of the converter. When the high-frequency current flows through the energy-feeding coil 2.2, the secondary coil 2.3 is excited to generate a secondary voltage. Current, according to the number of turns and wire diameter of the two coils, the size of the secondary current can be adjusted. After the secondary current passes through the starting coil 7, a high-frequency electric field is generated, and a large working current is formed in the lamp tube, so that the lamp tube works in an arc discharge state, thereby generating strong light radiation and high luminous efficiency.

Beneficial effects of the utility model:

1. Because there is no electrode in the lamp, the effect of long working life of the existing electrodeless lamp is maintained. The high-frequency converter is used for energy feeding and coupling, which can easily adjust the voltage at both ends of the lamp tube and the working current in the lamp, so that the lamp can work in the best state.

2. The magnetic core of the high-frequency voltage transformer is easy to install and adjust, so that the appearance of the lamp is the same as that of ordinary energy-saving lamps and fluorescent lamps. This is compatible with all current energy-saving lamps and fluorescent lamps, and all current lamps can be used, and it is beneficial to the development of electrodeless lamps. integration.

3. All current energy-saving lamps and fluorescent lamps can be used directly, so that all energy-saving lamps and fluorescent lamps can be directly transformed into electrodeless lamps, greatly improving their working life.

4. The current production equipment of energy-saving lamps and fluorescent lamps can be used for fully automated production, thereby greatly improving the production efficiency and yield of electrodeless lamps, greatly reducing the production cost of electrodeless lamps, and is extremely conducive to the reduction of the price of electrodeless lamps and the reduction of electrodeless lamps. Promotion of lights.

5. The utility model is energy-saving, environmentally friendly, saves non-ferrous metal materials, saves water resources, and is a very good green lighting source.

4. Description of drawings:

Figure 1 Embodiment 1: Schematic diagram of structural circuit

Figure 2 Embodiment 1: Schematic diagram of the lighting circuit principle

Figure 3 Embodiment 2: One of the integrated structure diagrams of general-purpose energy-saving electrodeless lamps (the shape of the lamp tube is straight)

Figure 4 Embodiment 2: The second integrated structure diagram (the shape of the lamp tube is double U-shaped)

Figure 5 Embodiment 2: The third integrated structure diagram (the shape of the lamp tube is spiral)

Figure 6 Embodiment 2: The fourth integrated structure diagram (the shape of the lamp tube is ring-shaped)

Figure 7 Embodiment 2: The fifth integrated structure (the shape of the lamp tube is H-shaped)

Figure 8 Embodiment 2: The sixth integrated structure (the shape of the lamp tube is a single U shape)

5. Implementation method of specific requirements

Embodiment 1: See Figure 1, the electrodeless lamp tube is an open lamp tube 1, which is filled with working gas: mercury vapor and argon 1.1; the inner surface of the lamp tube 1 is coated with phosphor powder, and the surface of the lamp tube 1 is coated with a tin oxide transparent conductive layer 1.2.

There are lead wires 6 extending into the lamp at both ends of the lamp tube 1, and after being sealed with the glass tube, the lamp tube is evacuated. A set of starting coils 7 are respectively wound on the outer surfaces of both ends of the lamp tube 1, one end of each set is connected to the secondary coil 2.3, and the other end is suspended in the air. The magnetic core 2.1 of the high frequency converter 2 is wound with an energy feeding coil 2.2 and a secondary coil 2.3. The coil 2.2 is connected to the lead wire 3 at the output end of the lighting circuit, and the coil 2.3 is connected to the lead wire 6.

As shown in Fig. 2, the lighting circuit 4 with an operating frequency of 100KHz-500KHz is composed of a rectifier 4.1, a high-frequency filter (4.2), a driver (4.3), an oscillator (4.4), and a matching network (4.5). The driver can be composed of a circuit including an integrated block IC, and the rest of the specific circuits can be conventional circuits, which will not be described in detail here.

When working, the commercial power 5 (220V, 50 Hz) is connected to the lighting circuit 4, and the rectifier 4.1 converts the AC into DC, and the driver 4.2 and the oscillator 4.3 generate electric energy with an oscillation frequency of 100KHz-500KHz, which is then passed through the high-frequency converter 2 Send high-frequency electric field into the lamp, so that the working gas in the lamp produces high-frequency gas discharge to complete the conversion of electric energy and light energy.

Embodiment 2: See Figures 4 to 8, the rest of the structures and circuits are identical to those of Embodiment 1.

Claims (5)

1. electrodeless lamp of general purpose type energy-saving, have electrodeless fluorescent tube (1), high-frequency current transformer (2), lamp circuit (4), go into mercuryvapour and argon or krypton in the fluorescent tube, tube inner wall is coated with fluorescent material, it is characterized in that fluorescent tube (1) surface is coated with the transparency conducting layer (1.2) of ground connection.

2. by the described electrodeless lamp of claim 1, it is characterized in that there is the lead-in wire (6) that stretches in the lamp at fluorescent tube (1) two ends, after the glass-tube sealing, fluorescent tube is evacuated.

3. by the described electrodeless lamp of claim 1, it is characterized in that respectively being wound with one group of actuating coil (7) at fluorescent tube (1) two ends outer surface, every group one end is connected with secondary coil (2.3), and the other end is unsettled.

4. according to the described electrodeless lamp of claim 1, it is characterized in that high-frequency current transformer (2) is a magnetic core (2.1), be wound with energy regenerative coil (2.2) and secondary coil (2.3) above, energy regenerative coil (2.2) is connected with the lead-out wire (3) of lamp circuit (4) output, and secondary coil (2.3) is connected with lead-in wire (6).

5. according to the described electrodeless lamp of claim 1, it is characterized in that lamp circuit (4) adopts the electronic oscillating circuit of 0.1MHz～0.5MHz.

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