CN102809692A - Device and method for testing insulation resistance and dielectric strength of power module - Google Patents
Device and method for testing insulation resistance and dielectric strength of power module Download PDFInfo
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- CN102809692A CN102809692A CN2012102707978A CN201210270797A CN102809692A CN 102809692 A CN102809692 A CN 102809692A CN 2012102707978 A CN2012102707978 A CN 2012102707978A CN 201210270797 A CN201210270797 A CN 201210270797A CN 102809692 A CN102809692 A CN 102809692A
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Abstract
The invention discloses a device and a method for testing insulation resistance and dielectric strength of a power module. The device comprises a single chip microcomputer control system. The single chip microcomputer control system is respectively electrically connected with an input switching device and an output switching device, the input switching device is respectively electrically connected with a testing signal input source, a discharge resistor and the output switching device, and the output switching device is electrically connected with a testing fixture. By the aid of the device and the method, the insulation resistance and the dielectric strength of the power module are automatically tested. Besides, integral testing time is shortened by one third or a half, and damage to the tested product due to artificial misoperation and risks of electric shock of operators are stopped. In addition, the device and the method have the advantages of stability in testing process, simplicity and convenience in operation, simple circuit structure, low cost and capability of being applied to the field of large-scale production of power sources.
Description
Technical field
The present invention relates to a kind of electric test device, be specifically related to the proving installation of a kind of power module insulation resistance and dielectric strength.
Background technology
In general insulation resistance and the dielectric strength test; Directly comprise that the input of insulation megger and Hi-pot Tester is added on the pin and shell of tested power module to test signal; The weak point of doing like this mainly contains; The one, the process of test is very loaded down with trivial details, tests a power module and requires long time.The 2nd, owing to be manually-operated, maloperation is unavoidable, because the input signal of this test all is a high pressure, the consequence of maloperation is the damage power module, is unfavorable for very much producing.The 3rd, because operating personnel's carelessness can cause the danger of electric shock.From whole weak point, all owing to be that manually-operated weak point causes.
Summary of the invention
The present invention provides the proving installation and the method for a kind of power module insulation resistance and dielectric strength, and purpose is to make whole insulation resistance and dielectric strength test process to realize robotization, and the testing efficiency before changing lowly reaches shortcomings such as maloperation.
Technical scheme of the present invention is: a kind of power module insulation resistance and dielectric strength proving installation; Comprise single-chip computer control system; Said single-chip computer control system electrically connects input switching device shifter and output switching device shifter respectively, and described input switching device shifter electrically connects first, second input source, discharge resistance and the output switching device shifter of test signal respectively; This output switching device shifter and said test fixture electrically connect.
The method of testing of a kind of power module insulation resistance and dielectric strength; Said single-chip computer control system sends the input source output signal that control signal starts test signal; And the test fixture that the test signal of the input source of this test signal output is equipped with tested power module through the entering of input switching device shifter is tested; Afterwards, carry out discharge operation; The control signal that said single-chip computer control system sends is set by the user; Setting content has: test mode promptly only tests insulation resistance, only test dielectric strength and insulation resistance dielectric strength all surveys three kinds, when setting, divides demonstration with pattern 1, pattern 2, mode 3 by the set information and the state display part of said single-chip computer control system respectively; Test duration, i.e. the continued time of insulation resistance and dielectric strength,, when setting, divide demonstration by described set information and state display part to calculate second; After control program is set completion, start by testing button, accomplish whole test process, and carry out conductive discharge and handle.
The present invention has realized automatically the insulation resistance of power module and the test job of dielectric strength.Reducing the whole test duration reaches 1/2-1/3, and stopped the people and be the damage of maloperation test products, and operating personnel's danger of getting an electric shock.Test process of the present invention is stable, easy and simple to handle, circuit structure is simple, with low cost, can be used on scale power supply production field.
Description of drawings
Fig. 1 is the block scheme of working method of the present invention;
Fig. 2 is a circuit connection diagram of the present invention.
Among the figure: 1. Hi-pot Tester, 2. High-Voltage Insulation table, 3. discharge resistance, 4. input-switching circuit, 5. output is switched, 6. test fixture, 7. high-voltage relay.
Embodiment
Below in conjunction with accompanying drawing and most preferred embodiment the present invention is made further detailed description.
With reference to Fig. 1; Fig. 2, a kind of power module insulation resistance and dielectric strength proving installation comprise single-chip computer control system; Said single-chip computer control system electrically connects input switching device shifter 4 and output switching device shifter 5 respectively, and described input switching device shifter 4 electrically connects first, second input source 1,2, discharge resistance 3 and the output switching device shifter 5 of test signal respectively, and this output switching device shifter 5 electrically connects with said test fixture 6.Described input switching device shifter 4 is high-voltage relay with output switching device shifter 5, and the group number that is provided with of this high-voltage relay is confirmed by concrete test signal.The input that needs a kind of single channel power module of test in the present embodiment is to exporting, import shell, shell the withstand voltage of output and insulation; Test duration is 60s simultaneously; So the high-voltage relay of input switching device shifter 4 is three groups; The high-voltage relay of output switching device shifter 5 is four, and first, second input source 1,2 of test signal is Hi-pot Tester and High-Voltage Insulation table; Details are as follows for detailed process:
1, with said Hi-pot Tester, High-Voltage Insulation table place in circuit, it is mode 3 that test pattern is set, and is meant that test mode is that input is tested respectively shell output, output shell, input.Test duration is for being set to 60s.
2, insert power module to be tested, press the test button and can test, detailed process is following;
1) single-chip computer control system is sent the signal of Hi-pot Tester into test fixture through first group of high-voltage relay connecting in the input switching device shifter; Through the output switching device shifter respectively to power module input end and shell, input and output, output to shell; Carry out anti-electrical testing, continue 60s at every turn.
2) break off the voltage-withstand test signal behind the time-delay 60s, discharge resistance is inserted test fixture, the part of carrying out voltage-withstand test is carried out discharge operation through the 3rd group of high-voltage relay of connecting in the input switching device shifter.
3) time-delay (based on degree of discharge adjustment monolithic program) is after a period of time; Break off discharge resistance; Send into test fixture through connecting second group of high-voltage relay in input switching device shifter megger signal that will insulate; Through the output switching device shifter respectively to power module input and shell, input and output, output to shell, carry out anti-electrical testing, lasting at every turn 60s.
4) break off insulation megger signal behind the time-delay 60s, discharge resistance is inserted test fixture, the part of carrying out megger test is carried out discharge operation through the 3rd group of high-voltage relay of connecting in the input switching device shifter.Thereby realization whole test process.
Claims (3)
1. power module insulation resistance and dielectric strength proving installation; Comprise single-chip computer control system; It is characterized in that: said single-chip computer control system electrically connects input switching device shifter (4) and output switching device shifter (5) respectively, and described input switching device shifter (4) electrically connects first, second input source (1,2), discharge resistance (3) and the output switching device shifter (5) of test signal respectively; This output switching device shifter (5) and said test fixture (6) electrically connect.
2. power module insulation resistance according to claim 1 and dielectric strength proving installation; It is characterized in that: described input switching device shifter (4) and output switching device shifter (5) are high-voltage relay, and the group number that is provided with of this high-voltage relay is confirmed by concrete test signal.
3. the method for testing of a kind of power module insulation resistance according to claim 1 and dielectric strength; It is characterized in that: said single-chip computer control system sends first or second input source (1,2) the output signal that control signal starts test signal; And the test fixture that the test signal of the input source of this test signal output is equipped with tested power module through the entering of input switching device shifter is tested; Afterwards, carry out discharge operation; The control signal that said single-chip computer control system sends is set by the user; Setting content has: test mode promptly only tests insulation resistance, only test dielectric strength and insulation resistance dielectric strength all surveys three kinds, when setting, divides demonstration with pattern 1, pattern 2, mode 3 by the set information and the state display part of said single-chip computer control system respectively; Test duration, i.e. the continued time of insulation resistance and dielectric strength,, when setting, divide demonstration by described set information and state display part to calculate second; After control program is set completion, start by testing button, accomplish whole test process, and carry out conductive discharge and handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102707978A CN102809692A (en) | 2012-08-01 | 2012-08-01 | Device and method for testing insulation resistance and dielectric strength of power module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102707978A CN102809692A (en) | 2012-08-01 | 2012-08-01 | Device and method for testing insulation resistance and dielectric strength of power module |
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| CN102809692A true CN102809692A (en) | 2012-12-05 |
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| CN2012102707978A Pending CN102809692A (en) | 2012-08-01 | 2012-08-01 | Device and method for testing insulation resistance and dielectric strength of power module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998630A (en) * | 2012-12-07 | 2013-03-27 | 江苏嘉钰新能源技术有限公司 | Automatic testing device and method of power module |
| CN103558562A (en) * | 2013-11-07 | 2014-02-05 | 浙江中控技术股份有限公司 | Testing device and method for power module |
| CN107728007A (en) * | 2017-11-27 | 2018-02-23 | 航天科工哈尔滨风华有限公司 | A kind of portable multi-purpose Aero-Space cable tester and method |
| WO2020037971A1 (en) * | 2018-08-23 | 2020-02-27 | 深圳光峰科技股份有限公司 | Multifunctional dielectric strength testing device and dielectric strength testing method |
| CN114019322A (en) * | 2021-10-25 | 2022-02-08 | 深圳市道通合创新能源有限公司 | Insulation detection system, method and tool for power battery pack and new energy automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206967Y (en) * | 1993-12-13 | 1995-09-06 | 青岛制冷技术研究所 | Electrical property comprehensive test instrument of electrical equipment |
| CN1268670A (en) * | 1999-03-24 | 2000-10-04 | 华仪电子股份有限公司 | Multifunctional safe standard automatic test device |
| CN2901330Y (en) * | 2006-04-20 | 2007-05-16 | 青岛艾诺电子仪器有限公司 | AC/DC withstand voltage insulation detector with high precision and high speed detecting and control circuit |
| CN102411115A (en) * | 2011-12-08 | 2012-04-11 | 天津力神电池股份有限公司 | Joint short circuit test device for lugs and case of lithium ion battery |
| CN202196144U (en) * | 2011-09-14 | 2012-04-18 | 北京铁路信号有限公司 | Insulating and pressure-resistance testing device |
-
2012
- 2012-08-01 CN CN2012102707978A patent/CN102809692A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206967Y (en) * | 1993-12-13 | 1995-09-06 | 青岛制冷技术研究所 | Electrical property comprehensive test instrument of electrical equipment |
| CN1268670A (en) * | 1999-03-24 | 2000-10-04 | 华仪电子股份有限公司 | Multifunctional safe standard automatic test device |
| CN2901330Y (en) * | 2006-04-20 | 2007-05-16 | 青岛艾诺电子仪器有限公司 | AC/DC withstand voltage insulation detector with high precision and high speed detecting and control circuit |
| CN202196144U (en) * | 2011-09-14 | 2012-04-18 | 北京铁路信号有限公司 | Insulating and pressure-resistance testing device |
| CN102411115A (en) * | 2011-12-08 | 2012-04-11 | 天津力神电池股份有限公司 | Joint short circuit test device for lugs and case of lithium ion battery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998630A (en) * | 2012-12-07 | 2013-03-27 | 江苏嘉钰新能源技术有限公司 | Automatic testing device and method of power module |
| CN103558562A (en) * | 2013-11-07 | 2014-02-05 | 浙江中控技术股份有限公司 | Testing device and method for power module |
| CN103558562B (en) * | 2013-11-07 | 2016-01-27 | 浙江中控技术股份有限公司 | A kind of power module proving installation and method |
| CN107728007A (en) * | 2017-11-27 | 2018-02-23 | 航天科工哈尔滨风华有限公司 | A kind of portable multi-purpose Aero-Space cable tester and method |
| WO2020037971A1 (en) * | 2018-08-23 | 2020-02-27 | 深圳光峰科技股份有限公司 | Multifunctional dielectric strength testing device and dielectric strength testing method |
| CN114019322A (en) * | 2021-10-25 | 2022-02-08 | 深圳市道通合创新能源有限公司 | Insulation detection system, method and tool for power battery pack and new energy automobile |
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Application publication date: 20121205 |