RU12496U1 - DEVICE FOR IGNITION OF A DISCHARGE LAMP - Google Patents

Abstract

A device for igniting a gas discharge lamp containing a ballast current-limiting element, a rectifier and an electric capacitance, the terminals of which are connected to adjacent terminals of the gas discharge lamp, characterized in that the rectifier contains a rectifier with a doubling of the rectified voltage, and an additional capacitor is added, which shunts the noise at the input of the device, the rectifier capacitance and the electric capacitance contain electrolytic capacitors with a capacity of 50-100 microfarads.

Description

DEVICE FOR IGNITION OF A DISCHARGE LAMP

The utility model relates to electrical engineering and, in particular, to the ignition of gas discharge lamps used for outdoor lighting.

A device for starting a mercury-quartz lamp with a starting electrode, containing a bridge rectifier, an input capacitor and a ballast capacitor (see AS 856047, N 05 V 41/34, z. 10. 01. 78g., Op. 15.08 81g.).

This device allows for small currents through the lamp (about 1-2% of the nominal) to ignite the lamp again, but it does not allow for normal operation of the lamp with a burnt thread.

A device is known for powering a discharge lamp (see p. 92009665, H 05 B 41/00, 41/46, p. 04. 12. 92g., Op. 20. 01. 95g.). This device contains a bridge half-wave rectifier, ballast, capacitors. However, this device contains a starter and allows you to restore normal operation, considered to be burnt, fluorescent lamps with a power of 36 and 40 watts.

A device for igniting fluorescent lamps, assembled on four semiconductor diodes and three capacitors (see z. 93035324, N 05 V 41/23, z. 08.07.93). A device is also known for non-starter ignition and power supply of a fluorescent lamp (see p. 93006513, H 05 V 41/23, z. 02. 02. 93.).

This device contains a rectifier made in the form of a diode bridge, a ballast and a capacitance consisting of two series-connected capacitors, which are connected to adjacent adjacent terminals of the lamp electrodes. This device is selected as the closest equivalent.

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Known devices for igniting burned-out discharge lamps contain well-known and common features: a rectifier, ballast, lamp. Known devices solve the problem of ignition of burnt out discharge lamps. However, in the radio industry, previously used electrolytic capacitors with a capacity of 50-100 microfarads. The main advantage of these capacitors is a large capacity with a relatively small size. These capacitors were widely used in the manufacture of radio engineering, radar and television equipment. A large number of such capacitors were in the warehouses of manufacturers and army warehouses. In connection with the transition to a new element base in the manufacture of radio engineering, radar and television equipment, previously released electrolytic capacitors with a capacity of 50-100 microns were unclaimed.

Currently, for general lighting, arc color-corrected mercury fluorescent lamps (DRL) are widely used. With large quantities of operated DRLs, the cost of replacing burned out DRLs becomes one of the main expense items. Blown mercury-containing lamps must be disposed of. The electrolytic capacitors accumulated over the previous years with a capacity of 50-100 microfarads must also be disposed of. It requires a lot of money.

The problem being solved by a utility model is to create a device for igniting gas discharge lamps, both with burnt out and with whole threads, but at the same time, use unclaimed electrolytic capacitors with a capacity of 50 W ohmf as capacitors used in devices for igniting gas discharge lamps. Consequently, the disposal of such DRLs and capacitors will be eliminated, the funds necessary for disposal will be saved.

The essence of the utility model is that in addition to the well-known and general features, namely, a rectifier, a ballast current-limiting element and an electric capacitance, the terminals of which are connected to adjacent terminals of a gas discharge lamp, the device is characterized in that the rectifier contains a rectifier with voltage doubling, an additional capacity is introduced , shunting the noise at the input of the device, and the capacitance of the rectifier and the electric capacitance contain electrolytic capacitors with a capacity of 50UOmf.

Using a rectifier with voltage doubling in the device allows using the capacitors and rectifier diodes to double the voltage at the time of starting the lamp, the filaments of which can be previously blown. Due to the generated double voltage, the lamp is started. The shunt capacitor at the input of the circuit does not allow interference into the rectification circuit. Additional capacitors in the rectifier, together with the diodes, also contribute to an increase in voltage, which ensures reliable lamp start-up. An electric capacitor connected to the lamp shunts the radio noise.

The inventive device is assembled on standard domestic components, while electrolytic capacitors with a capacity of 50-100 mkf are used as rectifier capacitors and electric capacitance. The use of electrolytic capacitors, which are very reliable in operation, in combination with a rectifier with doubling the voltage, increases the reliability of the proposed device in comparison with standard devices for triggering DRL. This is exactly what the tests of the claimed device, carried out in the production environment by the applicant, confirmed. At the same time, as a result of the tests, a new additional effect was announced:

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the mode of operation of the DRL, when using the inventive device, is more economical. Consequently, the life of the DRL increases. Moreover, the proposed device allows you to light one, two or more lamps at the same time.

During testing, the applicant compared the values of the operating and starting currents using a standard starting circuit and using the inventive device. Data on the magnitude of the operating and starting currents obtained during the tests conducted by the applicant are shown in table 1.

Tests also showed that the inventive device works reliably even when the input voltage changes. The lamp lights up reliably when the voltage is reduced to 130 volts, and when it is increased to 320 volts. Tests also showed that the proposed device can reliably restore the normal operation of the DRL power from 80 to 2000 watts.

Despite the fame of the individual distinguishing features, in general, the indicated self-functional population was not found. The proposed technical solution has "novelty, as it is characterized by the presence of distinctive features from the prototype.

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Table 1

The essence of the utility model is illustrated in the drawing, where: FIG. 1 is a circuit diagram of a device.

The device contains diodes 1, 2 and capacitors 5, 6, which, in aggregate, perform the function of a rectifier with a doubling of the rectified voltage. Diodes 3.4 and capacitors 9, 10 increase the reliability of starting the lamp 11. At the same time, capacitors 9, 10 drive radio interference. The capacitor 7 shunts the noise at the input of the device, and the capacitor 8 acts as a ballast. One terminal of the capacitor 7 is connected to the input of the device and to the anode of the diode 2, the cathode of the diode 1 and the connection point of the capacitors 5 and 6. Another terminal of the capacitor 5 is connected to the connection point of the cathodes of the diode 2 and diode 3, one terminal of the capacitor 10, and one terminal of the lamp 11 The other terminal of the capacitor 6 is connected to the connection point of the anodes of the diode 1 and diode 4, one terminal of the capacitor 9 and the other terminal of the lamp 11. The capacitors 9, 10 are connected in series. Another terminal of the capacitor 7 is connected to another input of the device and one terminal of the capacitor 8, the other terminal of which is connected to the connection point of the anode of the diode 3 and the cathode of the diode 4.

The device operates as follows.

When the mains voltage is applied to the device input, doubled rectified voltage is applied to the electrodes of the lamp 11. The lamp lights up and the operating mode is set in the circuit. The capacitance values of the capacitors 5, 6, 9, 10 are selected in such a way that previously unsuitable DRLs operate and create a luminous flux. The operating and starting currents of the lamp are smaller than when using standard schemes.

Thus, the proposed device allows not only to reliably start a blown DRL, but also to increase its service life by at least 5 times, by reducing the starting and operating currents

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and current ripple limitations. This eliminates the need for disposal of both unclaimed electrolytic capacitors with a capacity of 50-100 microfarads, and blown DRL. This saves the money needed to dispose of both unclaimed electrolytic capacitors with a capacity of 50-Ohmkf, and DRL with burnt filaments.

In addition, the burden on the environment is reduced, since the process of utilizing DRL is environmentally unsafe. And finally, electricity consumption by DRL is decreasing, which brings a tangible economic effect nationwide.

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Claims (1)

A device for igniting a gas discharge lamp containing a ballast current-limiting element, a rectifier and an electric capacitance, the terminals of which are connected to adjacent terminals of the gas discharge lamp, characterized in that the rectifier contains a rectifier with a doubling of the rectified voltage, and an additional capacitor is added, which shunts the noise at the input of the device, the rectifier capacitance and the electric capacitance contain electrolytic capacitors with a capacity of 50-100 microfarads.