CN2560953Y - Capacitance withstand voltage testing cassette - Google Patents

Abstract

Capacitance test box, including box body made of insulating material, high-voltage test plug, etc., is characterized by: there is a long groove on the upper surface of the box body, and a pair of positive and negative poles fixed in the groove correspond to the positive and negative poles of the high-voltage output terminal of the withstand voltage instrument and are connected to each other. The insulated test clip can insert the two pins of the measured capacitor into it; the upper surface of the box is also equipped with a control switch and a test indicator light; one end of the high-voltage test plug is connected to the long slot of the box through the wire connected to it. The two test clips are connected, and the other end is connected with the test voltage output terminal of the withstand voltage instrument; the normally open contact of the control switch is connected with the remote control socket of the withstand voltage instrument through a wire and a remote control test plug, and the normally closed contact One contact of the LED is connected to one end of the series branch composed of the indicator light and the resistor, and the other contact is suspended in the air; the other end of the series connection branch of the indicator light and the resistor is connected to a normally closed contact of the control switch, and the ground Connect the terminal to the ground terminal of the pressure tester. Its advantages are simple test operation, good insulation performance and safety.

Description

Capacitor withstand voltage test box

Technical field:

The utility model relates to an electrical testing component, in particular to a capacitor high-voltage testing component used in a withstand voltage tester, in particular to a test box for the withstand voltage value of a capacitor.

Background technique:

At present, the test member used by the withstand voltage tester to test the withstand voltage value of the capacitor is generally a rod-shaped structure or an alligator clip. Using the above-mentioned components to test the withstand voltage value of the capacitor is not only cumbersome to operate, the test speed is slow, and the efficiency is low, but also because the metal contact part of the test rod or alligator clip is exposed, if the operator is not careful, it is easy to cause electric shock accidents for the operator. Less secure.

Invention content:

The purpose of the utility model is to provide a capacitive withstand voltage test box with simple operation, high insulation degree and good safety.

The purpose of this utility model is achieved by the following technical solutions:

The capacitance withstand voltage test box described in the utility model includes a box body made of insulating material and a high-voltage test plug. It is characterized in that: a long groove is arranged on the upper surface of the box body, and a pair of The positive and negative poles of the high-voltage output terminal of the withstand voltage instrument are corresponding and insulated test clips. The two test clips can allow the two pins of the capacitor under test to be inserted into it; there is also a control switch and a test indicator on the upper surface of the box. Light; one end of the high-voltage test plug is connected to the two test clips in the long groove on the upper surface of the box through two wires connected to it, and the other end is connected to the test voltage output end of the withstand voltage instrument; The open contact is connected to the remote control socket of the withstand voltage instrument through the wire and the remote control test plug. Among the normally closed contacts of the control switch, one of the contacts is connected to one end of the series branch circuit composed of the indicator light and the resistor. The other contact is suspended in the air; the other end of the series branch of the indicator light and the resistor is connected to a normally closed contact of the control switch;

The utility model has the advantages that: (1) the testing operation is simple. The tester only needs to insert the two pins of the capacitor under test into the test clip according to the corresponding polarity, press the control switch to start the test, release the control switch after the test, and the test power is cut off. (2) Because the utility model places the high-voltage test clamp in the groove on the upper surface of the insulating box body, and it is in a non-energized state in the non-test state, when the tester performs the capacitor test clamping operation, due to the insulating shell of the capacitor protection, and it is not easy to touch the test clip, which guarantees the safety of the operator; status, and at the same time, a power-on indicator light is provided to prompt the working status of the utility model, which further ensures the safety of the test operation. (3) The box body of the utility model is made of insulating material, and the test clip is placed in the groove on the box body, which ensures the insulation performance of the whole test box and the safety of its use.

Description of drawings:

Fig. 1 is a schematic diagram of the structure of the upper surface of the box body of the present utility model;

Fig. 2 is a schematic diagram of the structure of the back side of the box body, that is, the left view of Fig. 1;

Fig. 3 is the electrical schematic diagram of the utility model.

Detailed ways:

Fig. 1-3 has provided an embodiment of the present utility model. As shown in Figure 1-3: the capacitance withstand voltage test box includes a box body 1 made of insulating material, a high-voltage test plug 2, a remote control test plug 3, and a grounding hook 4. There is a long groove 11 on the upper surface, and a pair of test clips 6 and 5 corresponding to the positive and negative poles of the high-voltage output terminal of the withstand voltage instrument and insulated from each other are fixed in the groove. The two test clips can insert the two pins of the measured capacitor into the Wherein; the upper surface of the box body 1 is also provided with a control switch 8 and a test indicator light 7; one end of the high voltage test plug 2 is connected with the two wires 10 connected to it and passing through the wire hole 12 on the back side of the box body 1 respectively. The two test clips 5 and 6 in the long groove 11 on the upper surface of the box body are connected, and the other end is connected with the corresponding test voltage output terminal of the withstand voltage instrument; the normally open contacts 1 and 2 of the control switch 8 pass through the box The wire 9 of the wire hole 12 on the back of the body 1 and the remote control test plug 3 are connected to the remote control socket of the withstand voltage instrument. One end of the series branch of the series is connected, and the other contact 3 is suspended; the other end of the series branch of the indicator light 7 and the resistor R is connected to a normally closed contact 1 of the control switch 8; the indicator light 7 and the resistor R are connected in series The ground end of the connection branch is connected to the ground end of the voltage withstand instrument through the wire passing through the wire hole 12 on the back of the box body 1 and the ground hook 4 .

The working principle of the utility model is as follows: when testing the withstand voltage value of the capacitor, insert the high-voltage test plug 2 into the high-voltage output terminal of the withstand voltage instrument, connect the remote control test plug 3 with the remote control socket of the withstand voltage instrument, and connect the grounding hook 4 to the withstand voltage tester. At this time, the test box is in the test standby state. Insert the two pins of the capacitor into the test clips 6 and 5 according to the corresponding polarity, press the control switch 8, then its normally open contacts 1 and 2 are closed, and the remote control test plug 3 connects the remote control socket of the withstand voltage instrument. Make the withstand voltage instrument provide high-voltage test voltage to the capacitor under test, and at the same time, the remote control socket of the withstand voltage instrument supplies power to the indicator circuit, and the light-emitting diode 7 emits light, indicating that it is in the test state. After the capacitance withstand voltage test is over, the control switch 8 is released to reset it, and the control switch 8 cuts off the high voltage test voltage of the withstand voltage instrument. The test box can also work in the remote control state. When the remote control mode is used, press the remote control of the remote control socket of the pressure tester, and the tester is in the remote control work state. At this time, press the control switch 8 to perform the above-mentioned Test operation, press the remote control of the remote control socket of the withstand voltage instrument again, the remote control will cut off the power supply of the remote control socket of the withstand voltage instrument, and the voltage withstand instrument will be powered off.

Claims (1)

1. Capacitance test box, including a box body (1) made of insulating material, a high-voltage test plug (2), characterized in that: a long groove (11) is arranged on the upper surface of the box body, and a long groove (11) is fixed in the groove For the test clips (5, 6) corresponding to the positive and negative poles of the high-voltage output terminal of the withstand voltage instrument and insulated from each other, the two test clips can allow the two pins of the capacitor to be tested to be inserted into it; on the upper surface of the box body (1) There is also a control switch (8) and a test indicator light (7); one end of the high-voltage test plug (2) is respectively connected to the two test plugs in the long groove (11) on the upper surface of the box body through two wires connected to it. The clamps (5, 6) are connected, and the other end is connected with the test voltage output terminal of the withstand voltage instrument; the normally open contact of the control switch (8) is connected to the withstand voltage instrument through the wire (9) and the remote control test plug (3). Among the normally closed contacts of the control switch, one of the contacts is connected to one end of the series branch formed by the indicator light (7) and the resistance (R), and the other contact is suspended; the indicator light (7) The other end of the series branch of the resistor (R) is connected to a normally closed contact of the control switch; the ground end of the series connection branch of the indicator light and the resistance is connected to the ground terminal of the withstand voltage instrument.

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