SU991467A1

SU991467A1 - Device for checking indicator lamp serviceability

Info

Publication number: SU991467A1
Application number: SU813337397A
Authority: SU
Inventors: Александр Сергеевич Меняйленко; Александр Иванович Гончаренко
Original assignee: Ворошиловградский филиал Института "Гипроуглеавтоматизация"
Priority date: 1981-09-15
Filing date: 1981-09-15
Publication date: 1983-01-23

Description

Изобретение относитс к приборостроению и автоматике. -,The invention relates to instrumentation and automation. -,

Известно устройство дл контрол сигнальных ламп, содержащее сигнальные лампы, усилитель, датчики l .A device for monitoring signal lamps is known, which contains signal lamps, amplifier, and sensors l.

Недостатком устройства вл ютс низка надежность и сложность контрол исправности сигнальных ламп.The disadvantage of the device is the low reliability and complexity of monitoring the health of signal lamps.

Наиболее близким по технической сущности к изобретению вл етс устройство дл проверки исправности сигнальных ламп, содержащее сигнальные пампы, первые выводы которых соединены с первым выводом размыкгиощего контакта кнопки проверки,первым выводом конденсатора и с первой шиной источника питани , втора шина которого через последовательно соединенные о замыкающие контакт кнопки проверку и дроссель подключена к второму выводу конденсатора, второму выводу размыкающего контакта кнопки проверки и первому выходу. датчиков, с трансформаторным выходом, второй вывод каждого из которых соединен с вторыми выводами соответствующей сигнальной лампы С2 3. .The closest in technical essence to the invention is a device for checking the operability of signal lamps, containing signal pamps, the first terminals of which are connected to the first terminal of the open contact of the test button, the first terminal of the capacitor and the first bus of the power source, the second bus of which is connected through series the contact of the check button and the choke are connected to the second capacitor lead, the second lead of the break contact of the check button and the first lead. sensors, with a transformer output, the second output of each of which is connected to the second terminals of the corresponding signal lamp C2 3..

Недостатками известного устройства вл етс необходимость тщательного выбора величин напр жени , питающих сигнальные лампы; необходимость разв зки между источниками посто нного и переменного напр жени ; строга последовательность включени и выключени контактов кнопки проверки , при одновременном, даже кратковременном их замыкании возможно закорачивание источника посто нного напр жени , что недопустимо; возмож10 ность ложных сигналов на выходах сигнализирующих датчиков в момент включени режима проверки.The disadvantages of the known device is the need to carefully select the voltage values feeding the signal lamps; the need for isolation between sources of constant and alternating voltage; the sequence of switching on and off the contacts of the test button is strict, while simultaneously, even briefly closing them, it is possible to short the source of a constant voltage, which is unacceptable; the possibility of false alarms at the outputs of the signaling sensors at the moment the test mode is turned on.

Цель изобретени - упрощение и повЕлшение надежности устройства.The purpose of the invention is to simplify and increase the reliability of the device.

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Поставленна цель достигаетс тем, что в устройство дл проверки исправности сигнгшьных ламп, содержащее сигнальные лампы, первые выводы которых соединены с первым вы20 водом кнопки проверки, вторые выводы каждой сигнальной лампы подключены к первому выходу соответствующего датчика с трансформаторным выходом , вторые выходы каждого из ко25 торых соединены с первым выводом конденсатора, введены два диода и трансформатор, первый вывод вторичной обмотки которого соединен с вторым выводом конденсатора, первый The goal is achieved by the fact that the device for checking the health of signal lamps, containing signal lamps, the first terminals of which are connected to the first terminal of the test button, the second terminals of each signal lamp are connected to the first output of the corresponding sensor with a transformer output, the second outputs of each one connected to the first output of the capacitor, two diodes and a transformer are introduced, the first output of the secondary winding of which is connected to the second output of the capacitor, the first

Claims

The 30 pin of which is connected to the cathode of the first diode and the second diode of the second diode whose cathode is connected to the second pin of the test button, the first pin of which is connected to the anode of the first diode and the second pin of the transformer secondary winding. In the drawing, a schematic diagram of the device is shown. The device contains signal lamps 1, sensors 2 with a transformer output 3, diodes 4 and 5, a check button 6, a capacitor 7, a transformer 8. Sensors 2 include a transformer 9, the winding of which outputs a signal to a logic device, and a transformer 10 that includes a signal lamp 1. The device operates as follows. In the initial state, the contact of the test button b is closed, and the alternating voltage supplying the signal lamps 1 passes through the oppositely connected diodes 4 and 5. The voltage supplied from the secondary winding of the transformer 8 is not supplied to the lamps due to the shunting effect of the opposite diodes. attached to the capacitor At any time, regardless of the position of the signaling sensor 2, you can check the health of the lamps, open contact button 6 test. At the same time, the lamps from the secondary winding of the transformer 8 are supplied with rectified double half-wave voltage in antiphase with the voltage from sensors 2. If the lamps are burning from the sinusoidal voltage of the sensors, then when checking the lamps from the sinusoidal voltage of the sensors, they continue to burn because they are positive the half-wave of dual voltage applied to the lamps partially or fully compensates for the negative half-wave of the sinusoidal voltage from the sensors, and a voltage applied to the lamps is sufficient for ignition and lamps. If, prior to checking the lamps, there was no voltage from the sensors, then at the moment of opening the contact of the T1 check button on the lamps, the voltage from the secondary winding of the transformer 8 through the capacitor 7 is applied, and the working lamps are illuminated. The voltage of the secondary winding of the transformer 8 is chosen in such a way that there is no overvoltage on the signal lamps in the test, and the luminance brightness is sufficient to check the health of the signal lamps. The proposed method is useful for testing incandescent lamps with low current consumption. The invention The device for checking the health of signal lamps, containing signal lamps, the first terminals of which are connected to the first terminal of the test button, the second terminals of each signal lamp are connected to the first output of the corresponding sensor with a transformer output, the second outputs of each of which are connected to the first terminal of a capacitor, different the fact that, in order to simplify and increase the reliability of the device in operation, two diodes and a transformer were inserted in it, the first output of the secondary winding of which A second terminal of the capacitor, the first terminal of which is connected to the cathode of the first diode and the anode of the second diode, whose cathode is connected to the second terminal of the check button, the first terminal of which is connected to the anode of the first diode and the second terminal of the secondary winding of the transformer. Sources of information taken into account in the examination 1. USSR author's certificate number 813490, cl. G 08 G 3/00, 1979.

2. USSR author's certificate number 201935, cl. G.08 23/00, 1967 (prototype).

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