SU909806A1

SU909806A1 - Device for illumination using two luminescent lamps

Info

Publication number: SU909806A1
Application number: SU802959322A
Authority: SU
Inventors: Виктор Никитович Ходыкин
Original assignee: Проектный Институт N3
Priority date: 1980-07-16
Filing date: 1980-07-16
Publication date: 1982-02-28

Description

, Изобретение относится к электротехнике и может быть использовано в осветительных установках с последовательным включением двух люминесцентных ламп с подогревными электродами., The invention relates to electrical engineering and can be used in lighting installations with the sequential inclusion of two fluorescent lamps with heated electrodes.

Известно устройство (1) для питания люминесцентных ламп, содержащее реактивный балласт в цепи питания двух последовательно соединенных ламп, трансформатор подогрева электродов с первичной обмоткой, включенной последовательно со стартером C1J.A device (1) is known for supplying fluorescent lamps, comprising reactive ballast in the power supply circuit of two series-connected lamps, a transformer for heating electrodes with a primary winding connected in series with a starter C1J.

Однако это устройство не обеспечивает надежного зажигания ламп, сложно и имеет малую надежность.However, this device does not provide reliable ignition of the lamps, it is complex and has low reliability.

Наиболее близким техническим решением к предлагаемому является устройство для питания двух последовательно включенных люминесцентных ламп с подогревными электродами, содержащее дроссель с дополнительной обмоткой и тепловой стартер, управляющий элемент которого включен последовательно в цепь дополнительной обмотки дросселя, а контаю2 ты стартера включены в его основную силовую цепь [2]. _к The closest technical solution to the proposed one is a device for supplying two series-connected fluorescent lamps with heated electrodes, containing a choke with an additional winding and a thermal starter, the control element of which is connected in series to the additional winding of the inductor, and the starter circuit 2 is included in its main power circuit [ 2]. _to

Однако для зажигания ламп в устройстве требуется высокий пусковой ток, что приводит к сокращению срока службы ламп и перегреву индуктивного дросселя.However, to ignite the lamps in the device, a high inrush current is required, which leads to a reduction in the lamp life and overheating of the inductive choke.

Недостатком устройства является также применение теплового стартера, который сложен в эксплуатации, изготовлении и имеет дополнительные потери мощности в нагревательном элементе при работе ламп.The disadvantage of this device is the use of a thermal starter, which is difficult to operate, manufacture and has additional power losses in the heating element during lamp operation.

Кроме того, известное устройство имеет низкую надежность, обусловленную тем, что при выходе из строя одной из памп вторая также оказывается отключенной.In addition, the known device has low reliability, due to the fact that when one of the pumps fails, the second also turns off.

Цель изобретения - повышение надежности работы устройства.The purpose of the invention is to increase the reliability of the device.

Поставленная цель достигается тем, что устройство дня освещения с двумя люминесцентными лампами, содержащее двухобмоточный дроссель, стартер и две люминесцентные лампы, причем одна из люминесцентных ламп включена междуThis goal is achieved in that the daylight device with two fluorescent lamps, comprising a double winding inductor, a starter and two fluorescent lamps, one of the fluorescent lamps being connected between

909606 выводом для присоединения к сети переменного тока и кондом одной из обмоток дросселя, а другая люминесцентная лампа подключена к другому выводу для присоединения к сети переменного тока, 5 снабжено балластным конденсатором и резистором, причем начало одной из обмоток дросселя соединено с кондом другой обмотки дросселя, соединенной началом с последовательной цепью, состоящей 10 из накального электрода другой люминесцентной лампы, стартера и другого Накального электрода другой люминесцентной лампы, а балластный конденсатор соединен параллельно с резистором и под- _t5ключей обкладками к выводу дця подключения к сети переменного тока и к концу другой обмотки дросселя.909606 with an output for connecting to an AC network and a cond of one of the windings of the inductor, and the other fluorescent lamp is connected to another output for connecting to an AC network, 5 is equipped with a ballast capacitor and a resistor, and the beginning of one of the windings of the inductor is connected to the condo of the other inductor winding, connected at the beginning with a series circuit consisting of 10 a filament electrode of another fluorescent lamp, a starter and another filament electrode of another fluorescent lamp, and a ballast capacitor is connected arallelno with a resistor and sub plates _t5 keys to the conclusion dtsya connection to AC power and the end of another choke coil.

На чертеже представлена принципиальная электрическая схема устройства. ₂₀ The drawing shows a circuit diagram of a device. ₂₀

Устройство содержит дроссель 1 с обмотками 2 и 3, соединенными последовательно и подключенными к электродам люминесцентных ламп 4 и 5, другие электроды которых подключены к выво- ₂₅дам для присоединения к сети переменного тока, стартер 6, включенный последовательно с накальными электродами лампы 4, балластный конденсатор 7, соединенный параллельно с резистором 8 и подключенный параллельно цепи, состоящей -:1з последовательно соединенных ламп.5 и обмотки 3 дросселя 1.The device comprises a choke 1 with windings 2 and 3 connected in series and connected to the electrodes of fluorescent lamps 4 and 5, other electrodes of which are connected to the terminals ₂₅ for connection to an alternating current network, a starter 6 connected in series with the filament electrodes of the lamp 4, ballast a capacitor 7 connected in parallel with a resistor 8 and connected in parallel with a circuit consisting of: 1z series-connected lamps. 5 and winding 3 of the inductor 1.

Устройство работает следующим образом.The device operates as follows.

При подаче напряжения последователь-³⁵ная цепь из конденсатора 7, обмотки 2 балластного дросселя 1, катодов лшлпы 4 и стартера 6 оказывается под током.' Происходит прогрев электродов и после размыкания стартера зажигание лампыWhen a voltage is applied, the series circuit ³⁵ from capacitor 7, winding 2 of the ballast inductor 1, the cathodes of the ballast 4 and starter 6 is energized. ' The electrodes warm up and after the starter opens, the lamp ignites

4. При протекании тока по обмотке 2 дросселя 1 во вторичной обмотке 3 индуцируется ЭДС.4. When current flows through winding 2 of inductor 1 in the secondary winding 3, EMF is induced.

Напряжение на конденсаторе 7 и обмотке 3 обеспечивает зажигание лампы 5. При этом достигается снижение пускового тока, уменьшение нагрева балластного дросселя, что в целом повьппа| ет надежность работы устройства и уве—/ личивает срок службы его элементов при одновременном упрощении устройства. Повышение надежности происходит также за счет того, что при Выходе из строя лампы, подключенной без стартера, горит, лампа, к которой подключен стартер, что исключено при других схемах последовательного включения ламп. ! Экономический эффект при использовании изобретения достигается за счет уменьшения эксплуатационных расходов.The voltage on the capacitor 7 and the winding 3 provides the ignition of the lamp 5. This achieves a decrease in the starting current, a decrease in the heating of the ballast inductor, which, in general, | It ensures the reliability of the device and increases the life of its elements while simplifying the device. The increase in reliability also occurs due to the fact that when the lamp connected without a starter fails, the lamp to which the starter is connected is lit, which is excluded with other schemes for sequentially switching on the lamps. ! The economic effect when using the invention is achieved by reducing operating costs.

Claims

I Isophilic is related to electrical engineering and can be used in lighting systems with series switching on of two fluorescent electrodes with heating electrodes. A device (1) for supplying fluorescent lamps is known, which contains a reactive ballast in the power supply circuit of two series-connected lamps, and a transformer for heating the electrodes with a primary current connected in series with the starter l. However, this device does not provide reliable ignition of lamps, is difficult and has low reliability. The closest technical solution to the present invention is a device for powering two series-connected fluorescent lamps with heating electrodes, containing a choke with a secondary winding and a thermal starter, the control element of which is connected in series to the additional winding of the chokes, and the starter batteries are included in its main power f2j circuit. However, for starting the lamps in the device, a high starting current is required, which leads to a shortened lamp life and inductive dross overheating l. A disadvantage of the device is also the use of a thermal starter, which is difficult to operate, manufacture, and has additional power losses in the heating element when lamps are in operation. In addition, the known device is & n low reliability due to the fact that when one of the lamps fails, the second lamp is also turned off. The purpose of the invention is to increase the reliability of the device. The goal is achieved by having a device for lighting with two fluorescent lamps containing a two-way choke, a starter and two fluorescent lamps, one of the fluorescent lamps being connected between the OUTPUT to connect to the mains current and the end of one of the windings of the chokes, and the other a fluorescent lamp is connected to another component for connection to an AC network, equipped with a ballast capacitor and a resistor, the beginning of one of the dross windings, l is connected to the end of the other drossel winding, a common start with a serial circuit consisting of a filament electrode of another luminescent lamp, a starter and another jacus electrode of another luminescent lamp, and a ballast capacitor connected in parallel with a resistor and connected to the AC supply and to the end of the other winding Drossel. The drawing shows a circuit diagram of the device. The device contains a choke 1 with windings 2 and 3 connected in series and connected to the electrodes of fluorescent lamps 4 and 5, the other electrodes of which are connected to the terminals for connection to the AC network, starter 6, connected successively with filament electrodes of lamp 4, ballast a capacitor 7, connected in parallel with a resistor 8 and connected to the parachute of the circuit, consisting of T.13 tpkhltedo -.connected lakp.5 to the winding 3 droplets 1. Service provider follows the following procedure. When voltage is applied, the sequence to the circuit from capacitor 7, winding 2 of ballast throttle 1, cathodes of pin 4 and starter 6 turns out to be energized. The heating of the electrodes and after the starter's star start is ignited and the ignition of the lamella 4 is observed. When a current is passed through the circuit, two emitters 1 are induced in the secondary winding 3 by EMF. Directly on the catcher 7 and the winding 3 provides ignition of the lamp 5. At the same time, the start-up current is reduced, reducing the heating of the ballast throttle, which in general increases the reliability of the device and increases the service life of its elements while simplifying devices. Improving the reliability also occurs due to the fact that when the lamp goes out of the lamp connected without a starter, the lamp to which the starter is connected is lit, which is excluded in other schemes of sequential switching of the lamps. The economic effect of using the invention is achieved by reducing operating costs. Formula invent and. A device for lighting with two fluorescent lamps, containing a two-wire choke, a starter and two fluorescent lamps, one of the fluorescent lamps connected between the output for connecting to the AC power supply and the end of one of the ampholes of the throttle and the other fluorescent lamp connected to the other output To connect to the AC network current, characterized by that, in order to increase the reliability of the device, it is equipped with a ballast capacitor and a resistor, with the beginning of one of the windings with the end of the other winding | phossel, connected to a series circuit consisting of a filament electrode of another luminescent lamp, a starter and another filament electrode of another luminescent lamp, and a ballast capacitor connected in parallel with a resistor and connected by plates to a cable for connecting to an AC network and to the end of the other winding. Sources of information taken into account in the examination 1,. Author's certificate of the USSR No. 570223, class, H 05 B 41/18, 1974.

2. Authors, the certificate of the USSR 564744, are. H 05 B 41/18, 1974.