CN207488408U - A kind of safety capacitance high-current test system - Google Patents
A kind of safety capacitance high-current test system Download PDFInfo
- Publication number
- CN207488408U CN207488408U CN201721567354.XU CN201721567354U CN207488408U CN 207488408 U CN207488408 U CN 207488408U CN 201721567354 U CN201721567354 U CN 201721567354U CN 207488408 U CN207488408 U CN 207488408U
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- China
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- module
- power amplifier
- safety capacitance
- sine wave
- power supply
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Abstract
The utility model is related to a kind of safety capacitance high-current test system, including sine wave generation module, power amplifier module, boost module, current detection module, testing data processing module；The sine wave generation module, power amplifier module, boost module are sequentially connected, the boost module and tested safety capacitance connection；The tested safety capacitance is also connected with current detection module, the current detection module connecting test data processing module.The test system of the utility model generates alternating voltage, alternating current detection is integrated together, and has the function of test simultaneously, compares differentiation, sorting, and system operatio is simple, can effectively improve the production test efficiency of safety capacitance.
Description
Technical field
Leakage current measuring technology more particularly to a kind of safety capacitance high-current test the utility model is related to safety capacitance
System.
Background technology
Safety capacitance is generally used in power-supply filter, plays the role of power filter, plays filter to common mode, DM EMI respectively
Wave acts on.Safety capacitance divides X-type and Y types, and X-type safety capacitance is connected across between firewire and zero curve, and Y type safety capacitances are connected across fire
Between line and ground wire or between zero curve and ground wire.X capacitances and Y capacitance will test corresponding alternating voltage (such as before manufacture
250VAC or 275VAC) under leakage current.Conventional measuring method is to apply voltage in safety capacitance with an alternating-current voltage source
On, then ammeter concatenation in the loop, alternating current of the safety capacitance under corresponding alternating voltage is measured by ammeter.
In order to improve testing efficiency, tester can be connected in parallel multiple safety capacitances and be tested.This method is to a certain degree
On solve the test problem of safety capacitance, but have that the instrument used is more, line complexity, can not carry out qualification/defective work
The shortcomings that sorting.
Utility model content
In order to solve the above-mentioned technical problem, a kind of test system easy to operate, testing efficiency is provided, the utility model carries
For following technical scheme：
A kind of safety capacitance high-current test system, including sine wave generation module, power amplifier module, boost module, electric current
Detection module, testing data processing module；
The sine wave generation module is used to generate the sine wave of standard, be connect with power amplifier module；The power amplifier module is defeated
Enter the input terminal of end connection sine wave generation module, output terminal connection boost module, generated for amplifying sine wave generation module
Voltage and current signal；The output terminal of the boost module and tested safety capacitance connection, small voltage signal is transformed into greatly
Voltage signal is after-applied on tested safety capacitance；The input terminal of the current detection module and tested safety capacitance connection, use
The electric current of tested safety capacitance is flowed through in detection, the output terminal of current detection module is connect with testing data processing module；It is described
Testing data processing module is used to the current signal detected being compared with setting value, judges whether tested safety capacitance closes
Lattice.
Further, the power amplifier module is individually integrated into the first function box, this is the needs for heat dissipation, remaining
Sine wave generation module, boost module, current detection module, testing data processing module are collectively integrated into the second function box,
First function box and the second function box are individually powered.
Further, the power amplifier module includes power amplifier, Switching Power Supply one, Switching Power Supply two and radiator；
The 0V of the Switching Power Supply one ,+50V of Switching Power Supply two are commonly connected to the GND ends of power amplifier, in this way relative to GND
End, the anode of Switching Power Supply one is equivalent to+50V, the negative terminal of Switching Power Supply two is equivalent to -50V, and the anode of Switching Power Supply one is opened
The negative terminal in powered-down source two respectively powers to the anode of power amplifier and negative terminal.
Further, the radiator includes heat exchange unit and two fans, the heat exchange unit are set to work(
The lower section of rate amplifier, the fan is respectively arranged at the both ends of power amplifier, one end exhausting, one end air-supply, so as to ensure
The good heat radiating of power amplifier module.
The beneficial effects of the utility model are：The alternating voltage of safety capacity measurement is generated, alternating current detection
It integrates, and there is test simultaneously, compare differentiation, difficulty that is easy to operate, reducing the operation of safety capacitance detecting
Degree can effectively improve the production test efficiency of safety capacitance.
Description of the drawings
The system structure diagram of Fig. 1, the utility model.
The structure diagram of Fig. 2, power amplifier module.
In figure：1st, the first function box, the 2, second function box.
Specific embodiment
A kind of safety capacitance high-current test system, including sine wave generation module, power amplifier module, boost module, electric current
Detection module, testing data processing module；
The sine wave generation module is used to generate the sine wave of standard, be connect with power amplifier module；The power amplifier module is defeated
Enter the input terminal of end connection sine wave generation module, output terminal connection boost module, generated for amplifying sine wave generation module
Voltage and current signal；The output terminal of the boost module and tested safety capacitance connection, small voltage signal is transformed into greatly
Voltage signal is after-applied on tested safety capacitance, and in the present embodiment, the input of boost module maximum is 25VAC, boost module
Primary and number of secondary turns ratio is 1：20, so boost module maximum output is 500VAC, boost module can select maximum power
For the step-up transformer of 650W, then in 500V, available maximum current is 1.3A；The input terminal of the current detection module
The electric current of tested safety capacitance, the output terminal of current detection module and test are flowed through with tested safety capacitance connection, for detection
Data processing module connects；The testing data processing module is used to the current signal detected and setting value being compared,
Judge whether tested safety capacitance is qualified.
The power amplifier module is individually integrated into the first function box 1, this is the needs for heat dissipation, remaining sine wave produces
Raw module, boost module, current detection module, testing data processing module are collectively integrated into the second function box 2, and described first
The individually power supply of 1 and second function box 2 of function box.
The power amplifier module includes power amplifier, Switching Power Supply one, Switching Power Supply two and radiator；The switch electricity
The 0V in the source one ,+50V of Switching Power Supply two are commonly connected to the GND ends of power amplifier, in this way relative to GND ends, Switching Power Supply
One anode is equivalent to+50V, the negative terminal of Switching Power Supply two is equivalent to -50V, the anode of Switching Power Supply one, Switching Power Supply two it is negative
End respectively powers to the anode of power amplifier and negative terminal.
The radiator includes heat exchange unit and two fans, the heat exchange unit are set to power amplifier
Lower section, the fan is respectively arranged at the both ends of power amplifier, one end exhausting, one end air-supply, so as to ensure power amplifier module
Good heat radiating.
Using above-mentioned foundation the utility model desirable embodiment as enlightenment, pass through above-mentioned description, relevant staff
Various changes and amendments can be carried out in the range of without departing from this item utility model technological thought completely.This item is practical
Novel technical scope is not limited to the content on specification, it is necessary to determine that its is technical according to right
Range.
Claims (4)
1. a kind of safety capacitance high-current test system, it is characterised in that：Including sine wave generation module, power amplifier module, boosting
Module, current detection module, testing data processing module；
The sine wave generation module is used to generate the sine wave of standard, be connect with power amplifier module；The power amplifier module input terminal
The input terminal of sine wave generation module, output terminal connection boost module is connected, for amplifying the electricity of sine wave generation module generation
Pressure and current signal；The output terminal of the boost module and tested safety capacitance connection, big voltage is transformed by small voltage signal
Signal is after-applied on tested safety capacitance；The input terminal of the current detection module with tested safety capacitance connection, for examining
The electric current of the excessively tested safety capacitance of flow measurement, the output terminal of current detection module are connect with testing data processing module；The test
Whether data processing module is qualified for the current signal detected with setting value to be compared to, judged tested safety capacitance.
2. a kind of safety capacitance high-current test system as described in claim 1, it is characterised in that：The power amplifier module is independent
It is integrated into the first function box, remaining sine wave generation module, boost module, current detection module, test data processing mould
Block is collectively integrated into the second function box, and first function box and the second function box are individually powered.
3. a kind of safety capacitance high-current test system as claimed in claim 2, it is characterised in that：The power amplifier module includes
Power amplifier, Switching Power Supply one, Switching Power Supply two and radiator；The 0V of the Switching Power Supply one, Switching Power Supply two+
50V is commonly connected to the GND ends of power amplifier, and the anode of Switching Power Supply one, the negative terminal of Switching Power Supply two respectively put power
The anode of big device and negative terminal power supply.
4. a kind of safety capacitance high-current test system as claimed in claim 3, it is characterised in that：The radiator includes heat
Crosspoint and two fans, the heat exchange unit are set to the lower section of power amplifier, and the fan is respectively arranged at
The both ends of power amplifier, one end exhausting, one end air-supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721567354.XU CN207488408U (en) | 2017-11-17 | 2017-11-17 | A kind of safety capacitance high-current test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721567354.XU CN207488408U (en) | 2017-11-17 | 2017-11-17 | A kind of safety capacitance high-current test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207488408U true CN207488408U (en) | 2018-06-12 |
Family
ID=62474568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721567354.XU Expired - Fee Related CN207488408U (en) | 2017-11-17 | 2017-11-17 | A kind of safety capacitance high-current test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207488408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447720A (en) * | 2020-03-27 | 2021-09-28 | 比亚迪股份有限公司 | Finished automobile Y-capacitor detection system and method and new energy vehicle |
-
2017
- 2017-11-17 CN CN201721567354.XU patent/CN207488408U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447720A (en) * | 2020-03-27 | 2021-09-28 | 比亚迪股份有限公司 | Finished automobile Y-capacitor detection system and method and new energy vehicle |
| CN113447720B (en) * | 2020-03-27 | 2022-05-13 | 比亚迪股份有限公司 | Finished automobile Y-capacitor detection system and method and new energy vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20201117 |