KR200472695Y1 - Capacitor tester - Google Patents

Abstract

The present invention relates to a capacitor testing apparatus, comprising: a first power supply unit for applying a high-voltage AC power; A boosting unit boosting a high-voltage AC power supplied from the first power supply unit; A rectifying unit for converting the high-voltage alternating-current power delivered through the boosting unit to a direct-current power; A first capacitor for charging a high-voltage DC power output from the rectifying unit; A second power source for applying a low-voltage AC power; A second capacitor for charging a low-voltage AC power supplied from the second power supply unit; A switching unit for switching the high-voltage direct-current power output from the rectifying unit to be charged to the first capacitor, and switching the high-voltage direct-current power charged in the first capacitor to discharge to the second capacitor; And a control unit for controlling the switching unit to charge the first capacitor with high voltage direct current power outputted from the rectifying unit and then discharge the high voltage direct current power charged in the first capacitor to the second capacitor by a predetermined number of times And a capacitor test apparatus.
According to the present invention, it is possible to charge a high-voltage direct-current power source and discharge it at a high speed by a predetermined number of times with a capacitor to be tested, so that the capacitor can be quickly tested for surge.
Further, by constituting the switch section for switching the charging and discharging by using the pneumatic cylinder, there is an effect that it can bear the long charging and discharging test.

Description

[0001] CAPACITOR TESTER [0002]

The present invention relates to a capacitor testing apparatus, and more particularly, to a capacitor testing apparatus for repeatedly discharging a high-voltage direct-current power supply to a capacitor to be tested.

The function of the capacitor is to charge the space between the two conductors. Capacitors are one of the most important components in consumer electronics.

The capacitor is used as a bypass cap in various electronic products to perform various important functions such as the role of passing the AC and blocking the DC, the function of removing the noise used in the power input part, and stabilizing the charging and discharging circuit During the manufacturing process of the parts, it is necessary to judge whether there is any abnormality.

The conventional apparatus for testing a capacitor merely performs a discharging function after charging, and there is a problem that it is not possible to carry out charging and discharging tests several times at high speed for a predetermined time.

Also, in the conventional apparatus for testing capacitors, charging and discharging are repeatedly tested using a relay contact method. In such a relay contact method, there is a problem that a relay contact malfunctions due to a failure as the number of tests increases.

It is an object of the present invention to provide a capacitor test apparatus for testing a capacitor by charging a high-voltage DC power source and discharging it by a predetermined number of times with a capacitor to be tested. have.

It is another object of the present invention to provide a capacitor testing apparatus that can withstand long charging and discharging tests by constituting a switch unit for switching between charging and discharging by using a pneumatic cylinder.

According to an aspect of the present invention, there is provided a plasma display panel comprising: a first power source for applying a high-voltage AC power; A boosting unit boosting a high-voltage AC power supplied from the first power supply unit; A rectifying unit for converting the high-voltage alternating-current power delivered through the boosting unit to a direct-current power; A first capacitor for charging a high-voltage DC power output from the rectifying unit; A second power source for applying a low-voltage AC power; A second capacitor for charging a low-voltage AC power supplied from the second power supply unit; A switching unit for switching the high-voltage direct-current power output from the rectifying unit to be charged to the first capacitor, and switching the high-voltage direct-current power charged in the first capacitor to discharge to the second capacitor; And a control unit for controlling the switching unit to charge the first capacitor with a high-voltage direct-current power output from the rectifying unit and then discharge the high-voltage direct-current power charged in the first capacitor to the second capacitor by a predetermined number of times.

The switching unit may further include a diode for providing a transfer path so that a high-voltage direct-current power output from the rectifying unit is supplied to the switching unit.

The switching unit may include a first switch for switching a high-voltage direct-current power delivered through the diode to be charged to the first capacitor; And a second switch for switching the high-voltage DC power charged in the first capacitor to discharge to the second capacitor.

The first switch may include a first connection terminal connected to the first capacitor, a first connection terminal electrically connected to the cathode of the diode, and a first connection terminal having an insulation portion and a pneumatic cylinder sequentially disposed thereunder, Wherein the first connection terminal and the first connection terminal are connected by a reciprocating motion of the second capacitor, the second switch is connected to the first capacitor, the second connection terminal is electrically connected to the second capacitor, And a pneumatic cylinder, wherein the second connection terminal and the second connection terminal can be connected by the reciprocating motion of the pneumatic cylinder.

According to the capacitor test apparatus according to the present invention, a high-voltage DC power source is charged and discharged at a high speed by a predetermined number of times with a capacitor to be tested, so that the capacitor can be subjected to a surge test in a short time.

Further, by constituting the switch section for switching the charging and discharging by using the pneumatic cylinder, there is an effect that it can bear the long charging and discharging test.

1 is a block diagram of a capacitor testing apparatus according to the present invention;
2 is a sectional view of a switch constituting a switching unit according to the present invention;

Hereinafter, an embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

1 is a block diagram of a capacitor testing apparatus according to the present invention.

1, the capacitor testing apparatus includes a first power source unit 10, a voltage boost unit 20, a rectifying unit 30, a switching unit 40, a first capacitor 50, a second power source unit 60, A capacitor 70 and a control unit 80. [

The first power supply unit 10 applies a high-voltage AC power. For example, AC (AC) power of 4.5 KV is applied.

The step-up unit 20 boosts the high-voltage AC power supplied from the first power supply unit 10. Specifically, the voltage-up unit 20 is composed of a transformer, and an AC power of 4.5 KV can be boosted to 6 KV.

The rectifying unit 30 converts the high-voltage alternating-current power delivered through the boosting unit 20 to the direct-current power.

The first capacitor 50 charges the high-voltage direct-current power outputted from the rectifying unit 30.

The second power supply unit 60 applies a low-voltage AC power. For example, AC power of about 250 to 300 V can be applied.

The second capacitor 70 charges the low-voltage AC power supplied from the second power supply 60.

The switching unit 40 switches the high voltage DC power output from the rectifying unit 40 to be charged to the first capacitor 50 and the high voltage DC power charged to the first capacitor 50 is supplied to the second capacitor 70, As shown in FIG. Specifically, the rectifying unit 30 and the first capacitor 50 may be connected through a switch terminal, or the first capacitor 50 and the second capacitor 70 may be connected through a switch terminal.

The control unit 80 charges the first capacitor 50 with the high voltage direct current power outputted from the rectifying unit 30 and then supplies the high voltage direct current power charged in the first capacitor 50 to the second capacitor 70 And controls the switching unit 40 to discharge the set number of times. For example, after the DC power of 6 kV outputted from the rectifying section 30 is charged in the first capacitor 50, the DC power of 6 KV charged in the first capacitor 50 is discharged 100 times by the second capacitor, And controls the opening and closing of the terminal. In this way, the high-pressure surge test can be repeated several times effectively for a certain period of time.

2 is a cross-sectional view of a switch constituting the switching unit according to the present invention.

Referring to FIG. 2, the switching unit 40 includes a first switch 41 and a second switch 42.

The first switch 41 switches the high-voltage DC power supplied from the rectifier 30 through the diode D to be charged in the first capacitor 50. The diode D provides a transfer path so that the high-voltage DC power output from the rectifying section 30 is supplied to the switching section 40.

Specifically, the first switch 41 includes a first connection terminal 43 connected to the first capacitor 50, a second connection terminal 43 electrically connected to the cathode of the diode D, and an insulation portion 47 and a pneumatic cylinder The first connection terminal 43 and the first connection terminal 44 are connected to each other by the reciprocating motion of the pneumatic cylinder 48. [ The control unit 80 controls the reciprocating motion of the pneumatic cylinder 48 and the first connection terminal 43 and the first connection terminal 44 are connected so that the high voltage DC power delivered from the rectification unit 30 is supplied to the first The capacitor 50 is charged.

The second switch 42 switches the high-voltage DC power charged in the first capacitor 50 to be discharged to the second capacitor 70.

Specifically, the second switch 42 is electrically connected to the second connection terminal 45 and the second capacitor 70 connected to the first capacitor 50, and the insulation portion 47 and the pneumatic cylinder (not shown) The second connection terminal 45 and the second connection terminal 46 are connected to each other by the reciprocating motion of the pneumatic cylinder 48. The second connection terminal 46 is connected to the second connection terminal 45 via the second connection terminal 46, The control unit 80 controls the reciprocating motion of the pneumatic cylinder 48 and the first connection terminal 45 and the first connection terminal 46 are connected so that the high voltage DC power charged in the first capacitor 50 And is discharged to the second capacitor 70. At this time, while the control unit 80 repeatedly connects and disconnects the first connection terminal 45 and the first connection terminal 46 a predetermined number of times, the high-voltage DC power charged in the first capacitor 50 And is discharged to the second capacitor (70).

According to the present invention, it is possible to charge a high-voltage direct-current power source and discharge it at a high speed by a preset number of times with a capacitor to be tested, so that the capacitor can be quickly tested for surge.

Further, by constituting the switch section for switching the charging and discharging by using the pneumatic cylinder, there is an effect that it can bear the long charging and discharging test.

It is to be understood that the present invention is not limited to the specific preferred embodiment described above and that various modifications can be made by those skilled in the art without departing from the scope of the present invention Obviously, such modifications are intended to be within the scope of the claims.

10: first power supply unit 20:
30: rectification part 40: switching part
41: first switch 42: second switch
43: first connection terminal 44: first connection terminal
45: second connection terminal 46: second connection terminal
47: Insulation part 48: Pneumatic cylinder
50: first capacitor 60: second power supply unit
70: second capacitor 80:

Claims (4)

A first power source for applying an AC power of a first voltage;
A boosting unit boosting the AC power of the first voltage applied from the first power supply unit;
A rectifier for converting the AC power of the first voltage transmitted through the voltage step-up unit to DC power;
A first capacitor charged with the DC voltage of the first voltage outputted from the rectifying unit;
A second power source for applying an AC power of a second voltage that is a voltage lower than the first voltage;
A second capacitor for charging the AC power of the second voltage applied from the second power supply unit;
A switching unit switching the DC power of the first voltage output from the rectifying unit to be charged to the first capacitor and switching the DC power of the first voltage charged to the first capacitor to discharge to the second capacitor; And
Wherein the first capacitor is charged with DC power of the first voltage outputted from the rectifying unit and then the DC power of the first voltage charged in the first capacitor is discharged by a predetermined number of times to the second capacitor, And a control unit for controlling the capacitance of the capacitor. The method according to claim 1,
Between the rectifying section and the switching section,
Further comprising a diode for providing a transfer path so that the DC power of the first voltage output from the rectifying unit is supplied to the switching unit. 3. The method of claim 2,
The switching unit
A first switch for switching the DC power of the first voltage transmitted through the diode to be charged in the first capacitor; And
And a second switch for switching the DC power of the first voltage charged in the first capacitor to discharge to the second capacitor. The method of claim 3,
Wherein the first switch includes a first connection terminal connected to the first capacitor, a first connection terminal electrically connected to the cathode of the diode, and having an insulation portion and a pneumatic cylinder sequentially in a lower portion thereof, The first connection terminal and the first connection terminal are connected by movement,
The second switch includes a second connection terminal connected to the first capacitor, a second connection terminal electrically connected to the second capacitor, and having an insulation portion and a pneumatic cylinder sequentially in the lower portion, And said second connection terminal and said second connection terminal are connected by movement.

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