KR100713635B1 - Error diagnosis apparatus of ballast - Google Patents

Abstract

The present invention relates to a device for diagnosing a ballast failure by adding a ballast failure diagnosis device to a ballast for various high pressure discharge lamps and determining whether there is a failure of the ballast and a lamp. The present invention is connected to one of two output stages of a ballast of a high pressure discharge lamp. An input unit connected to the other of the output terminals, a voltage divider connected between the input unit and the output unit to divide the output voltage of the ballast, and a voltage divider connected between the voltage divider and the output unit to generate a ballast. A voltage detecting unit for detecting a voltage, a voltage display unit for connecting the voltage detecting unit, an output unit and a voltage dividing unit for displaying the detected voltage, and a pulse for connecting the input unit and the output unit to detect an output pulse of the ballast A pulse display section connected between a detection section, the pulse detection section, an output section, and a voltage divider section to display the detected pulse; Technical diagnosis of the device for fault diagnosis of a ballast characterized in that the configuration, including. Accordingly, by detecting the voltage and pulse through the voltage detector and the pulse detector connected to the output terminal of the ballast and visually displaying them through the voltage display and the pulse display, the presence and failure of the ballast before disassembly of the ballast or the high-pressure discharge lamp By making it possible to understand, there is an advantage that can eliminate the inconvenience of the user of the high-pressure discharge lamp, and can prevent the waste of manpower and resources by quickly identifying the cause of failure.

High Voltage Discharge Lamp Ballast Fault Diagnosis Voltage Pulse

Description

Error diagnosis apparatus of ballast

1-overall configuration diagram of a failure diagnosis device of the ballast according to the present invention.

2-a block diagram of a voltage divider of a device for diagnosing a failure of a ballast according to the present invention;

3 is a configuration diagram of a voltage detector and a voltage display unit of a failure diagnosis apparatus of the ballast according to the present invention.

4 is a block diagram of a pulse detection unit and a pulse display unit of the failure diagnosis apparatus of the ballast according to the present invention.

5-detailed circuit diagram of a failure diagnosis apparatus of the ballast according to the present invention.

6-a circuit diagram of an overcurrent detector of a device for troubleshooting a ballast in accordance with the present invention.

7-Application example of a failure diagnosis device of the ballast according to the present invention.

8 is a block diagram of a ballast built-in failure diagnosis apparatus according to another embodiment of the present invention.

<Description of Major Symbols Used in Drawings>

10: ballast 20: discharge lamp

100: trouble diagnosis device 110: voltage divider

120: voltage detector 121: voltage signal detector

130: voltage display unit 131: voltage display device

140: pulse detector 141: pulse signal detector

150: pulse display unit 151: pulse display device

160: overcurrent detector 161: overcurrent indicator

170: starter

a: Input part of troubleshooting device b: Output part of troubleshooting device

c, d: connection point of voltage divider

The present invention relates to a device for diagnosing ballasts for adding a ballast failure diagnosis device to a conventional ballast for various high-pressure discharge lamps to determine whether there is a failure of the ballast and the lamp.

In general, a discharge lamp encloses gas or metal vapor in a transparent tube, and electrodes are formed at both ends of the tube, and the electrode is connected to an external circuit and a current limiting device. The high-pressure discharge lamp is a discharge lamp using light emitted by discharge in a high pressure gas or steam, and typical examples thereof are metal halide lamps and high pressure sodium lamps, and are mainly used for street lamps and industrial lighting.

Since the discharge lamp is electrically separated from the two electrodes, it is necessary to supply a high voltage starting voltage from an external circuit at start-up, and has a negative resistance characteristic after start-up, and thus there is no current limiting capability in itself. The device must be provided. Such a device having a starting and current limiting function is called a ballast for a discharge lamp, and the high voltage starting voltage forms a high voltage pulse voltage through an ignitor formed inside the ballast, or a leakage voltage due to a leakage current of a winding, that is, a lead. It can be obtained by forming a peak peak voltage.

When a ballast used in such a high-pressure discharge lamp is broken or a failure occurs in the lamp, it is necessary to know where the failure occurs in order to perform a quick repair according to the cause of the failure.

In order to determine the failure of the ballast, conventionally, after the disassembly and dismantling of the ballast or the high-pressure discharge lamp, the failure is determined by visual inspection, inspection by a general purpose tester, inspection by a laboratory-level inspection equipment, and the like.

However, due to the characteristics of the ballast or high-pressure discharge lamp is not easy to install and dismantle, there is an inconvenience that a lot of manpower and equipment must be mobilized to check the failure.

In addition, the above-mentioned failure diagnosis method is inspected in a state that does not know the cause of the failure accurately and visually and immediately from the outside, so it is not possible to know whether it is a ballast problem, a lamp itself problem, or an electric wiring problem. There is a problem that the discovery and proper repair is not made quickly.

The present invention has been made to solve the above problems, by detecting the voltage and pulse through the voltage detector and the pulse detector connected to the output terminal of the ballast and visually display it through the voltage display and the pulse display to accurately cause the failure of the ballast Its purpose is to provide a fault diagnosis device for ballasts that can be grasped.

The present invention for achieving the object as described above, the input unit is connected to one of the two output terminals of the ballast of the high-pressure discharge lamp, the output unit is connected to the other of the output terminal, the ballast is connected between the input unit and the output unit A voltage divider connected to divide the output voltage of the voltage divider; a voltage detector connected between the voltage divider and the output to detect a voltage generated in the ballast; and a voltage detector connected between the voltage detector, the output, and the voltage divider to detect the voltage. A voltage display section for displaying a signal, a pulse detection section connected between the input section and an output section for detecting output pulses of the ballast, and a pulse display section connected between the pulse detection section, an output section and a voltage divider section to display the detected pulse. Technical diagnosis of the device for fault diagnosis of a ballast characterized in that the configuration, including.

Accordingly, by detecting the voltage and pulse through the voltage detector and the pulse detector connected to the output terminal of the ballast and visually displaying them through the voltage display and the pulse display, the presence and failure of the ballast before disassembly of the ballast or the high-pressure discharge lamp By making it possible to understand, there is an advantage that can eliminate the inconvenience of the user of the high-pressure discharge lamp, and can prevent the waste of manpower and resources by quickly identifying the cause of failure.

Hereinafter, with reference to the accompanying drawings will be described for the present invention.

As shown in FIG. 1, the fault diagnosis apparatus of the ballast according to the present invention includes an input unit and an output unit connected to two output terminals of the ballast 10, a voltage divider 110, a voltage detector 120, and a voltage display unit. 130, the pulse detection unit 140, and the pulse display unit 150 is largely configured, the failure diagnosis device of the ballast according to the present invention is connected to the output terminal of the existing ballast (10).

The input unit and the output unit are respectively connected to the output terminal of the ballast 10, and become an input unit and an output unit in the failure diagnosis apparatus.

The voltage dividing unit 110 is connected between the input unit and the output unit of the failure diagnosis apparatus, and for convenience, the input unit is referred to as a and the output unit as b. The voltage divider 110 divides the output voltage of the ballast 10 into the voltage diagnosis circuit side and the pulse diagnosis circuit side, and a connection point between the voltage diagnosis circuit side and the voltage divider 110 is referred to as c, and The connection point with the voltage division part 110 is called d.

The voltage divided by the voltage dividing unit 110 is supplied to the voltage detector 120 and the voltage display unit 130, and the pulse detector 140 and the pulse display unit 150, respectively. The voltage display unit 130 and the pulse display unit 150 are turned on to diagnose the abnormality of the ballast 10.

2 is a configuration diagram of a voltage divider, FIG. 3 is a configuration diagram of a voltage detector and a voltage display unit, FIG. 4 is a configuration diagram of a pulse detector and a pulse display unit, and FIG. 5 is a circuit diagram of a failure diagnosis device of a ballast. It is shown.

As shown in FIG. 3, the voltage detector 120 includes a voltage signal detector 121 connected between the voltage divider 110 and an output b of the fault diagnosis device, and the voltage signal detector 121. Preferably, the voltage signal detector 130 includes a switch connected between the voltage display unit 130 and the voltage signal detector 121 is a resistor and a capacitor connected in series between the voltage divider 110 and the output unit b of the fault diagnosis device. The voltage display unit 130 is composed of a switch connected in series with the voltage display device 131 between the voltage divider 110 and the output unit b of the fault diagnosis device and connected to the voltage signal detection unit 121. It is desirable to be.

As shown in FIG. 4, the pulse detector 140 includes a pulse signal detector 141 connected between the input unit a and the output unit b of the fault diagnosis apparatus, the pulse signal detector 141 and the pulse. Preferably, the display unit 150 includes a switch and a diode connected between the display unit 150. The pulse signal detection unit 141 includes a switch, a resistor, and a capacitor connected in series. The pulse display unit 150 includes the fault diagnosis device. It is preferable that the switch is connected in series with the pulse display device 151 between the input portion a and the output portion b of the fault diagnosis apparatus, and is connected to the pulse signal detection portion 141.

2 is a circuit diagram according to an embodiment of the voltage dividing unit 110, and FIG. 5 is a detailed circuit diagram of the ballast 10 failure diagnosis apparatus 100. As shown, a voltage divider 110 is connected to the input part a of the fault diagnosis device, and a voltage detector 120 and a pulse detector 140 are connected between the voltage divider 110 and the output part b of the fault diagnosis device. Each is connected. The voltage display unit 130 is connected between the voltage detector 120 and the output unit of the failure diagnosis apparatus, and the pulse display unit 150 is connected between the pulse detection unit 140 and the output unit b of the failure diagnosis apparatus.

The voltage divider 110 includes a series connection of resistors R1, R2, and R3 connected in series with the diode D1, and a series connection of resistors R8, R9, and R10 connected in series with the D1.

The signal input to the input part a of the fault diagnosis apparatus is rectified by the diode D1 of the voltage divider 110, and is respectively passed through a first resistor R1 and a second resistor R2, and an eighth resistor R8 and a ninth resistor R9. 120, the voltage display unit 130, the pulse detector 140, and the pulse display unit 150 are supplied with operating power. The voltage dividing unit 110 and the input side of the pulse display unit 150 are connected to the voltage dividing unit 110.

The voltage detector 120 adjusts the charging current of the capacitors C1 and C1 to charge the current supplied from the voltage divider 110 between the connection point c of the voltage divider and the output b of the fault diagnosis device. R4 is connected in series with C1. In addition, a voltage display unit 130 configured by series connection of the switch SW2 and the voltage display device 131 L1 is connected between the connection point c of the voltage divider and the output unit b.

In addition, a voltage signal detection unit 121 in which a resistor R5 and a capacitor C2 are connected in series between a connection point c of the voltage divider and an output unit b of the fault diagnosis device is configured, and a voltage is connected through a switch SW1 connected to the connection point of R5 and C2. It is connected to the switch SW2 of the display unit 130. The output of SW1 is sent to the operating signal of SW2, the charging voltage of C2 is sent to the operating signal of SW1, and the operating signal of SW1 is smoothed by C3. The output of SW2 is connected to the input of the voltage display device 131 L1. The current charged in C1 becomes the operating power supply of the voltage display device 131 L1 through SW2. As a result, when the L1 operates, it can be seen that the voltage of the input part a of the fault diagnosis apparatus is equal to or higher than the reference voltage.

The switch SW3 of the pulse display unit 150 and the pulse display device 151 L2 are connected in series between the connection point d of the voltage divider and the output part b of the failure diagnosis device, and the output of SW3 is inputted by the pulse display device 151. Is connected. Further, between the connection point d of the voltage divider and the output b of the fault diagnosis device, C4 to charge the current supplied from the voltage divider 110 and a resistor R11 for adjusting the charging current of C4 are connected in series.

Then, the switch SW5 and the diode D2 and the capacitor C6 are connected in series between the input part a and the output part b of the troubleshooting device, and the diode D3 is connected between the connection point of the SW5 and the diode D2 and the output part b of the troubleshooting device. The signal detection unit 141 is connected. The diode D4 is connected between the connection point d of the C6 and D2 and the connection point d of the voltage divider, and is connected to the SW3 of the pulse display unit 150 via the switch SW4 connected to the connection point of the C6 and D2 of the pulse signal detection unit 141. The output of SW3 is connected to the input of the pulse display device 151 L2.

Therefore, when the output of the ballast 10 becomes the operating voltage of SW5 of the pulse signal detection unit 141, the signal of SW5 charges C6, and the charging voltage of C6 is the operating signal and the operating power of SW4 of the pulse detection unit 140. do. When the charging voltage of C6 becomes the operating voltage of SW4, SW4 is operated, and the output of SW4 is sent to the operating signal of SW3 of the pulse display unit 150 through the resistor to operate SW3. When SW3 is operating, the current charged in C4 is supplied to the pulse display device 151 L2 through SW3. When L2 operates, the voltage at the input section contains a high-voltage pulse voltage equal to or higher than the reference voltage, and a high-voltage pulse above the reference voltage is generated between the two output stages (input and output sections of the fault diagnosis device) a and b of the ballast 10. Will be known.

Therefore, the present invention detects whether the input and output voltage of the ballast 10 is normally supplied, and the operation of the pulse generator mounted inside the ballast 10 is normally performed to detect whether the lamp voltage for starting the lamp is normally supplied. The operation state of the ballast 10 can be visually grasped from the outside, and when the start of the lamp is not smooth, the operation of the pulse generator is blocked for circuit protection.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. 5 is a detailed circuit diagram of a ballast failure diagnosis apparatus, FIG. 6 is a circuit diagram of an overcurrent detector of a ballast failure diagnosis apparatus, and FIG. 7 is an example of application of a ballast failure diagnosis apparatus. The configuration diagram of the stand-alone ballast failure diagnosis apparatus of FIG. 6 includes a function for detecting an overcurrent.

As shown, the voltage divider 120 and the voltage divider 110 connected to the voltage display unit 130 are composed of a diode D1 and resistors R1, R2, and R3. The voltage divider 110 to be connected to the pulse detector 140 and the pulse display unit 150 includes a diode D1, a resistor R8, a resistor R9 and R10. SW5 to supply the operation signal of SW4 of the pulse detection unit 140 is connected to the input of the failure diagnosis apparatus. Switches SW2 and SW3 used three-terminal thyristors, and SW1 and SW4 used two-terminal thyristors. The switch SW5 uses a varistor used as a voltage fuse.

The output of SW1 was used to supply the operating signal of SW2, and the output of SW5 was used to supply the operating signal of SW4. In addition, the output of SW4 was used to supply the operating signal of SW3. SW1 and SW4 operate repeatedly at regular time periods, and diodes D1, D2, and D3 operate only when the voltage at the input of SW2 and SW3 becomes positive. Diode D4 makes the discharge path of C6 when switch SW3 is operated, and has the operating cycle of SW4. The voltage display device 131 L1 and the pulse display device 151 L2 used display lamps to visually discriminate the inspector.

Next, the operation principle of the failure diagnosis device of the ballast will be described.

When a positive AC voltage is input to the input part a of the troubleshooting device, C1 and C4 are charged through the forward D1, and C2 is charged through the resistor R5. When the voltage of the input part a of the troubleshooting device is greater than or equal to a certain voltage, the voltage charged in C2 reaches the operating voltage of SW1. When the voltage charged in C2 is discharged through SW1, SW2 becomes conductive. When SW2 conducts, the current charging C1 through the voltage divider 110 flows through the voltage display device 131 L1 through SW2 to the output part b of the failure diagnosis device to emit L1.

When the input of the input part a of the fault diagnosis apparatus includes a pulse that is significantly higher than the sine wave peak value of the effective voltage, the pulse voltage charges C6 through the SW5 composed of the varistors, and the charging voltage of C6 operates the SW4. Supplied as a signal. Therefore, when SW4 is conducted, the charging current of C6 is supplied as the operating signal of SW3 through SW4. The output of SW4 is smoothed through resistor R12 and capacitor C5, driving SW3. When SW3 operates and SW3 conducts, a current for charging C4 through the voltage divider 110 flows through the SW3 to the pulse display device 151 L2 to emit L2.

The voltages charged to C2 and C6 are discharged while SW1 and SW4 are conducting, and when the charging voltages of C2 and C6 are discharged below the operating voltages of SW1 and SW4, SW1 and SW4 are opened again. As a result, SW2 and SW3 are also opened again, and the current flowing through the voltage divider 110 is repeatedly charged until the voltages of C2 and C6 become operating voltages of SW1 and SW4. In order to prevent the luminous power of L1 and L2 from becoming excessive and to increase the visual recognition of the inspector, L1 and L2 flash while C2 and C6 discharge and charge, respectively.

Therefore, the inspector can know that the output of the ballast 10 is less than the operating voltage when both L1 and L2 do not light up, and may determine that the ballast 10 or the input power of the ballast 10 is abnormal.

When L1 is lit and L2 is not lit, the input / output of the effective voltage of the ballast 10 is normal, but it can be seen that no pulse signal is generated. Therefore, a failure or a lead peak of the pulse generator inside the ballast 10 is caused. It may be determined that the peak voltage is low.

If both L1 and L2 are lit, the output of ballast 10 is all good. If the high-pressure discharge lamp 20 does not light up at this time, it may be determined that the lamp is defective or that the wiring between ballast 10 and the lamp is incorrect. have. Table 1 shows the states between the display devices L1 and L2 and the ballast 10. Particularly, in the case of the integrated device with the pulse generator inside the ballast 10, a part of the output of the pulse display device 151 accumulates for a predetermined time and then a high-voltage pulse is generated for a long time by using it as an operation blocking signal of the starter. You can prevent it.

<Table 1>

6 illustrates a configuration diagram of a stand-alone ballast 10 failure diagnosis apparatus 100 including an overcurrent detection function capable of inspecting whether a coil of the ballast 10 is insulated-breakdown. The switch SW7 selects whether to send the signal of the input unit to the ballast 10 failure diagnosis apparatus 100 or the overcurrent detector 160. When the signal of the input unit a is connected to the overcurrent detector 160 through SW7, when the output current of the ballast 10 is normal, the current continuously flows through the switch SW6 and the overcurrent detector 160. When the ballast 10 is destroyed and the output current of the ballast 10 is excessive, the voltage induced in the secondary winding of the transformer Tr1 of the overcurrent detector 160 operates RY and SW6 opens according to the operation of RY. do. Therefore, the current flowing in the input unit turns on the overcurrent indicator 161 L3 through the resistor R7. As the overcurrent detector 160, a conventional circuit breaker may be applied.

FIG. 7 illustrates an example of the practical application of the failure diagnosis device 100. The device is formed in a panel shape, and the input part a and the output part b terminal of the failure diagnosis device are formed on the front of the panel, and the voltage and current galvanometer is The voltage display device 131 L1, the pulse display device 151 L2, and the overcurrent indicator 161 L3 are visually exposed on the front of the panel, so that the abnormality of the ballast 10 can be maintained without disassembling the ballast or the lamp. It will be immediately known from the outside.

In addition, Figure 8 shows a block diagram of a ballast-type failure diagnosis device, the failure diagnosis device according to the above configuration is to be connected to the starter 170 inside the ballast. In general, the ignitor 170 operates to generate a high voltage pulse to operate the discharge lamp, and stops the generation of the pulse after the discharge lamp is started. In the ballast-type failure diagnosis device, the starter 170 is connected between a winding and an input part a and an output part b of the failure diagnosis device as in the related art, and is connected to the pulse detector 140 to detect a pulse signal from the ballast. By the start pulse is blocked after a certain time. As a result, in the case of a ballast having a built-in starter, a failure diagnosis device may be integrally connected to the starter if necessary and used as a built-in ballast.

According to the present invention by the above configuration, by detecting the voltage and pulse through the voltage detection unit and the pulse detection unit connected to the output terminal of the ballast and visually display it through the voltage display unit and the pulse display unit, whether there is more than before disassembly of the ballast or high-pressure discharge lamp By first identifying the type of failure, the user can eliminate the inconvenience of the user of the high-pressure discharge lamp, and prevent the waste of manpower and resources by quickly identifying the cause of the failure.

Claims (8)

An input unit connected to one of two output terminals of the ballast of the high-pressure discharge lamp; An output unit connected to the other of the output terminals; A voltage divider connected between the input and the output to divide the output voltage of the ballast; A voltage detector connected between the voltage divider and the output to detect a voltage generated from the ballast; A voltage display unit connected between the voltage detector, an output unit, and a voltage divider to display the detected voltage; A pulse detection unit connected between the input unit and the output unit to detect an output pulse of the ballast; And a pulse display unit connected between the pulse detection unit, the output unit and the voltage divider to display the detected pulses. The method of claim 1, wherein the voltage detector, A voltage signal detector connected between the voltage divider and the output; And a switch connected between the voltage signal detection unit and the voltage display unit. The voltage signal detecting unit of claim 2, wherein the voltage signal detecting unit comprises a resistor and a capacitor connected in series between the voltage divider and the output unit, and the voltage display unit is connected in series with the voltage display device between the voltage divider and the output unit. And a switch connected to the voltage signal detection unit. The method of claim 1, wherein the pulse detection unit, A pulse signal detection unit connected between the input unit and the output unit; And a switch and a diode connected between the pulse signal detection unit and the pulse display unit. 5. The pulse signal detecting unit according to claim 4, wherein the pulse signal detecting unit is composed of a switch connected in series and a resistor and a capacitor, and the pulse display unit is connected in series with a pulse display device between the voltage divider and the output unit and connected to the pulse signal detecting unit. Ballast failure diagnosis device, characterized in that consisting of a switch. The apparatus for diagnosing ballasts according to any one of claims 1 to 5, further comprising an overcurrent detector connected between the input unit and the output unit and selectively connected by the input unit and the switch. . The device for diagnosing failure of the ballast according to any one of claims 1 to 5, A device for diagnosing a ballast, characterized in that connected to a starter inside the ballast. The method of claim 7, wherein the starter, And a start pulse is connected between the input unit and the output unit, and is connected to the pulse detection unit and applied with a detected pulse signal.

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