High-voltage pulse generating device

Abstract

The utility model discloses a high-voltage pulse generating device, which comprises a voltage-stabilized power supply V, a switch S1, a regulating transformer R1, an electronic switch S2, a switch S3, a booster T1, an oscilloscope V, a load RL, an overcurrent detection circuit, an alarm circuit and a timer, and is characterized in that the output end of the voltage-stabilized power supply V is connected to the input end of the switch S1, and the output end of the switch S1 is connected to the positive electrode of the regulating transformer R1. The high-voltage pulse generating device is used for testing the pulse high voltage resistance of products such as an energy storage connector and detecting whether the insulation and voltage resistance performance of the energy storage connector meets the standard requirement or not, the amplitude and width of the needed output pulse voltage are adjusted through the voltage adjusting transformer R1 and the timer, meanwhile, the overcurrent value is set, and the pulse high voltage resistance detection is conducted on the products; the detection efficiency is improved through one-key implementation in an electronic switch mode.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse-resistant high-voltage testing equipment, in particular to a high-voltage pulse generating device. Background Art

[0002] Energy storage connectors and other products need to be subjected to pulse high voltage resistance tests before leaving the factory to detect whether the insulation withstand voltage performance of the energy storage connector meets the standards. However, the existing energy storage connectors have low test efficiency when subjected to pulse high voltage resistance tests because the number of tests cannot be preset, resulting in an inability to quickly detect the withstand voltage insulation performance of the product. In order to overcome the above-mentioned defects, a high-voltage pulse generating device is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a high-voltage pulse generating device, which adjusts the amplitude and width of the required output pulse voltage through a voltage regulating transformer R1 and a timer, and sets an overcurrent value at the same time to perform pulse high voltage resistance detection on the product; it is achieved by one-click through an electronic switch, thereby improving the detection efficiency and solving the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-voltage pulse generating device, comprising a voltage-stabilized power supply V, a switch S1, a voltage-regulating transformer R1, an electronic switch S2, a switch S3, a booster T1, an oscilloscope V, a load RL, an overcurrent detection circuit, an alarm circuit and a timer, wherein the output end of the voltage-stabilized power supply V is connected to the input end of the switch S1, the output end of the switch S1 is connected to the positive electrode of the voltage-regulating transformer R1, and the negative electrode of the voltage-regulating transformer is connected to the input end of the voltage-stabilized power supply V; the input end of the electronic switch S1 is connected to the voltage-regulating terminal of the voltage-regulating transformer R1, and the output end of the electronic switch S2 is connected to the positive electrode of the voltage-regulating transformer R1. The step-up transformer T1 is connected to terminal 1 of the booster T1, terminal 2 of the step-up transformer T1 is connected to the input end of the voltage-stabilized power supply V1, terminal 3 of the step-up transformer T1 is connected to the input end of the overcurrent detection circuit and to the input end of the oscilloscope V, the output end of the overcurrent detection circuit is connected to the input end of the load RL, the output end of the load RL is connected to the output end of the oscilloscope V and then connected to terminal 4 of the step-up transformer T1; the signal output end of the overcurrent detection circuit is connected to the signal input end of the alarm circuit and to the signal input end of the timer, and the signal output end of the timer is connected to the control end of the electronic switch S2.

[0005] Preferably, two ends of the electronic switch S2 are connected in parallel to a switch S3.

[0006] Preferably, the overcurrent detection circuit includes a comparator U1, a control logic unit U2, an OCP controller U3, a voltage transmitter U4, a voltage reference module Vref and a switch tube Q1, terminal 1 of the comparator U1 is connected to input terminal 3 of the booster T1, terminal 2 of the comparator U1 is connected to the input end of the voltage reference module Vref, and the output end of the voltage reference module Vref is grounded; the output end of the comparator U1 is connected to the signal input end of the control logic unit U2 and to the input end of the load RL, the output end of the control logic unit U2 is connected to the input end of the OCP controller U3 and to the input end of the voltage transmitter U4, the output end of the voltage transmitter U4 is connected to the collector of the switch tube Q1, the output end of the OCP controller U3 is connected to the base of the OCP controller U3, and the emitter of the switch tube Q1 is connected to the input end of the alarm circuit.

[0007] Preferably, the alarm circuit includes resistors R1-R8, capacitors C1, C2, transistor Q2 and a loudspeaker MIC, the input end of the resistor R1 is connected to the emitter of the switch tube Q1, the output end of the resistor R1 is connected to the input end of the resistor R2 and to the input end of the capacitor C1, the output end of the resistor R2 is connected to the base of the transistor Q2 and to the input end of the resistor R3, the output end of the resistor R3 is connected to the emitter of the transistor Q2 and then grounded, and the output end of the capacitor C1 is grounded; the collector of the transistor Q2 is connected to the output end of the resistor R4, and to the input end of the resistor R5 and the input end of the capacitor C2, the output end of the capacitor C2 is grounded, the input end of the resistor R4 is connected to the power supply input, the output end of the resistor R5 is connected to the input end of the resistor R6 and to the positive electrode of the loudspeaker MIC, the output end of the resistor R6 is grounded, the negative electrode of the loudspeaker MIC is connected to the input end of the resistor R7, the output end of the resistor R7 is grounded, the input end of the resistor R8 is connected to the input end of the loudspeaker MIC, and the output end of the resistor R8 is connected to the output end of the resistor R7.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] This high-voltage pulse generator is used for testing the pulse high voltage resistance of products such as energy storage connectors. It detects whether the insulation and voltage resistance performance of energy storage connectors meet the requirements of the standards. The amplitude and width of the required output pulse voltage are adjusted through the voltage regulating transformer R1 and the timer. At the same time, the overcurrent value is set to perform pulse high voltage resistance testing on the product. This can be achieved with one click through an electronic switch to improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the principle diagram of the utility model;

[0011] Figure 2 This is the overcurrent detection circuit diagram of the utility model;

[0012] Figure 3 This is the alarm circuit diagram of the utility model. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-3 A high-voltage pulse generating device includes a stabilized power supply V, a switch S1, a voltage regulating transformer R1, an electronic switch S2, a switch S3, a booster T1, an oscilloscope V, a load RL, an overcurrent detection circuit, an alarm circuit and a timer, wherein the output end of the stabilized power supply V is connected to the input end of the switch S1, the output end of the switch S1 is connected to the positive electrode of the voltage regulating transformer R1, and the negative electrode of the voltage regulating transformer is connected to the input end of the stabilized power supply V; the input end of the electronic switch S1 is connected to the voltage regulating terminal of the voltage regulating transformer R1, and the output end of the electronic switch S2 is connected to the No. 1 terminal of the booster T1 Terminal 2 of the step-up transformer T1 is connected to the input end of the voltage-stabilized power supply V1, terminal 3 of the step-up transformer T1 is connected to the input end of the overcurrent detection circuit and to the input end of the oscilloscope V, the output end of the overcurrent detection circuit is connected to the input end of the load RL, the output end of the load RL is connected to the output end of the oscilloscope V and then connected to terminal 4 of the step-up transformer T1; the signal output end of the overcurrent detection circuit is connected to the signal input end of the alarm circuit and to the signal input end of the timer, and the signal output end of the timer is connected to the control end of the electronic switch S2.

[0015] As a further solution of the present invention, two ends of the electronic switch S2 are connected in parallel with a switch S3.

[0016] As a further solution of the utility model, the overcurrent detection circuit includes a comparator U1, a control logic unit U2, an OCP controller U3, a voltage transmitter U4, a voltage reference module Vref and a switch tube Q1. Terminal 1 of the comparator U1 is connected to input terminal 3 of the booster T1, terminal 2 of the comparator U1 is connected to the input end of the voltage reference module Vref, and the output end of the voltage reference module Vref is grounded; the output end of the comparator U1 is connected to the signal input end of the control logic unit U2 and to the input end of the load RL, the output end of the control logic unit U2 is connected to the input end of the OCP controller U3 and to the input end of the voltage transmitter U4, the output end of the voltage transmitter U4 is connected to the collector of the switch tube Q1, the output end of the OCP controller U3 is connected to the base of the OCP controller U3, and the emitter of the switch tube Q1 is connected to the input end of the alarm circuit.

[0017] As a further solution of the utility model, the alarm circuit includes resistors R1-R8, capacitors C1, capacitors C2, transistors Q2 and loudspeaker MIC, the input end of the resistor R1 is connected to the emitter of the switch tube Q1, the output end of the resistor R1 is connected to the input end of the resistor R2, and is connected to the input end of the capacitor C1, the output end of the resistor R2 is connected to the base of the transistor Q2, and is connected to the input end of the resistor R3, the output end of the resistor R3 is connected to the emitter of the transistor Q2 and then grounded, and the output end of the capacitor C1 is grounded; the collector of the transistor Q2 is connected to the output end of the resistor R4, and is connected to the input end of the resistor R5 and the input end of the capacitor C2, the output end of the capacitor C2 is grounded, the input end of the resistor R4 is connected to the power supply input, the output end of the resistor R5 is connected to the input end of the resistor R6, and is connected to the positive electrode of the loudspeaker MIC, the output end of the resistor R6 is grounded, the negative electrode of the loudspeaker MIC is connected to the input end of the resistor R7, the output end of the resistor R7 is grounded, the input end of the resistor R8 is connected to the input end of the loudspeaker MIC, and the output end of the resistor R8 is connected to the output end of the resistor R7.

[0018] The high-voltage pulse generating device, switch S1 is the power-on switch of the equipment, the voltage-regulating transformer R1 is used to adjust the input mains voltage to a suitable voltage, the voltage range is 0-250V, the electronic switch S2 is used to connect the output of the voltage-regulating transformer R1 and the input of the booster T1, the switch S3 is a short-circuit switch, the timer is a pulse signal generator, used to adjust the pulse signal amplitude and set the number of pulse outputs; the booster T1 is used to boost the output voltage of the voltage regulator to the voltage required for the test, that is, the output voltage is 25kV when the input is 250V; the oscilloscope V and the high-voltage carbon rod are used to measure the amplitude and width of the high-voltage pulse output of the booster T1; the overcurrent detection circuit is used to preset the overcurrent value and send a signal to the alarm circuit and the timer when the test current exceeds the preset current; the working principle is: close the switch S1, the equipment is powered on, the output of the voltage-regulating transformer R1 is first adjusted to the minimum value, and after closing the switch S3, the output voltage value of the voltage-regulating transformer R1 is slowly adjusted, and the oscilloscope V reading is observed to reach the required test value Voltage value, then disconnect switch S3, set the timer output pulse signal width according to the test requirements, start the timer to trigger the electronic switch S2 to turn on once according to the pulse width output by the timer, and the oscilloscope V captures a pulse high-voltage signal. When the amplitude and width of the high-voltage model meet the test requirements; connect the load RL, that is, the product under test, to the far right, adjust the preset current value of the over-current detection circuit, that is, the resistance value of the product under test is certain, by setting the voltage value of the comparator U1, that is, setting the preset current value, setting the number of output pulse signals of the timer and the time interval before every 2 times, start the timer, and the equipment begins to enter the test. During the test process, if the product's withstand voltage insulation performance is not good, resulting in the detected current value exceeding the preset current value of the over-current detection circuit, the over-current detection circuit outputs a signal, triggering the speaker MIC alarm, the timer stops working, the test ends, and the test result is unqualified; when the timer completes the preset number of times, the timer stops outputting the trigger signal, and the test ends.

[0019] To sum up: this high-voltage pulse generating device is used for testing the pulse high voltage resistance of products such as energy storage connectors, and detecting whether the insulation and voltage resistance performance of the energy storage connectors meets the requirements of the standards. By setting the preset current value, setting the number of output pulse signals of the timer and the time interval before each 2 times, starting the timer, the equipment begins to enter the test. During the test process, if the product's voltage resistance and insulation performance are not good, resulting in the detected current value exceeding the preset current value of the overcurrent detection circuit, the overcurrent detection circuit outputs a signal, triggering the speaker MIC alarm, and the timer stops working; the amplitude and width of the required output pulse voltage are adjusted by the voltage regulating transformer R1 and the timer, and the overcurrent value is set at the same time to perform pulse high voltage resistance detection on the product; this can be achieved with one click through an electronic switch to improve detection efficiency.

[0020] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage pulse generating device, comprising a voltage-stabilized power supply V, a switch S1, a voltage-regulating transformer R1, an electronic switch S2, a switch S3, a booster T1, an oscilloscope V, a load RL, an overcurrent detection circuit, an alarm circuit and a timer, characterized in that: The output end of the voltage-stabilized power supply V is connected to the input end of the switch S1, the output end of the switch S1 is connected to the positive pole of the voltage-regulating transformer R1, and the negative pole of the voltage-regulating transformer is connected to the input end of the voltage-stabilized power supply V; the input end of the electronic switch S1 is connected to the voltage-regulating terminal of the voltage-regulating transformer R1, the output end of the electronic switch S2 is connected to the No. 1 terminal of the booster T1, the No. 2 terminal of the booster transformer T1 is connected to the input end of the voltage-stabilized power supply V1, the No. 3 terminal of the booster transformer T1 is connected to the input end of the overcurrent detection circuit and to the input end of the oscilloscope V, the output end of the overcurrent detection circuit is connected to the input end of the load RL, and the output end of the load RL is connected to the output end of the oscilloscope V and then to the No. 4 terminal of the booster transformer T1; the signal output end of the overcurrent detection circuit is connected to the signal input end of the alarm circuit and to the signal input end of the timer, and the signal output end of the timer is connected to the control end of the electronic switch S2.

2. A high voltage pulse generating device according to claim 1, characterized in that: The two ends of the electronic switch S2 are connected in parallel to a switch S3.

3. A high voltage pulse generating device according to claim 1, characterized in that: The overcurrent detection circuit includes a comparator U1, a control logic unit U2, an OCP controller U3, a voltage transmitter U4, a voltage reference module Vref and a switch tube Q1. Terminal 1 of the comparator U1 is connected to input terminal 3 of the booster T1, terminal 2 of the comparator U1 is connected to the input end of the voltage reference module Vref, and the output end of the voltage reference module Vref is grounded; the output end of the comparator U1 is connected to the signal input end of the control logic unit U2 and to the input end of the load RL, the output end of the control logic unit U2 is connected to the input end of the OCP controller U3 and to the input end of the voltage transmitter U4, the output end of the voltage transmitter U4 is connected to the collector of the switch tube Q1, the output end of the OCP controller U3 is connected to the base of the OCP controller U3, and the emitter of the switch tube Q1 is connected to the input end of the alarm circuit.

4. A high voltage pulse generating device according to claim 1, characterized in that: The alarm circuit includes resistors R1-R8, capacitors C1, C2, transistor Q2 and a loudspeaker MIC. The input end of the resistor R1 is connected to the emitter of the switch tube Q1, the output end of the resistor R1 is connected to the input end of the resistor R2 and is connected to the input end of the capacitor C1, the output end of the resistor R2 is connected to the base of the transistor Q2 and is connected to the input end of the resistor R3, the output end of the resistor R3 is connected to the emitter of the transistor Q2 and then grounded, and the output end of the capacitor C1 is grounded; the collector of the transistor Q2 is connected to the output end of the resistor R4, and is connected to the input end of the resistor R5 and the input end of the capacitor C2, the output end of the capacitor C2 is grounded, the input end of the resistor R4 is connected to the power supply input, the output end of the resistor R5 is connected to the input end of the resistor R6 and is connected to the positive electrode of the loudspeaker MIC, the output end of the resistor R6 is grounded, the negative electrode of the loudspeaker MIC is connected to the input end of the resistor R7, the output end of the resistor R7 is grounded, the input end of the resistor R8 is connected to the input end of the loudspeaker MIC, and the output end of the resistor R8 is connected to the output end of the resistor R7.

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