High-low voltage impact tester and test method thereof
An impact tester, high and low voltage technology, applied in the direction of testing dielectric strength, instruments, measuring electricity, etc., can solve the problems of inaccurate timing, waste time and force, inaccurate test results, etc., to improve test efficiency and facilitate popularization Promote and realize the effect of automated testing
Active Publication Date: 2013-03-20
谛卓(北京)咨询顾问有限公司
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Problems solved by technology
At present, the high and low voltage impact test relies on manual conversion by people with the voltage regulator, which cannot be accurately timed, wastes time and energy, and the test results are inaccurate
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[0018] see figure 1 It can be seen that the high and low voltage impact tester is provided with two test circuits that output different voltage values, thereby simulating the high and low voltage impact environment, wherein the control end loop of the first relay 6 of the first test circuit is connected to the control chip 5, and one end of the output end loop is connected to 220V power supply, the other end is connected to the test sample 4 through the first voltage regulator 9, the first purified AC regulated power supply 10 and the first power meter 11, and the second relay 7 control end loop of the second test circuit is connected to the control chip 5 One end of the output loop is connected to a 220V power supply, and the other end is connected to the test sample 4 through the second voltage regulator 12 , the second purified AC regulated power supply 13 and the second power meter 14 .
[0019] In order to save production costs, the control chip 5 is recommended to use th...
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The invention discloses a high-low voltage impact tester and a test method thereof. A control end circuit of a first relay of a first test circuit is connected to a control chip, one end of the output end circuit is connected with a 220V power supply, the other end of the output end is connected to a tested sample through a first voltage regulator, a first purification alternating current stabilized voltage supply and a first power instrument, a control end circuit of a second relay of a second test circuit is connected to the control chip, one end of the output end circuit is connected with a 220V power supply, the other end of the output end is connected to the tested sample through a second voltage regulator, a second purification alternating current stabilized voltage supply and a second power instrument, the water outlet end of a solenoid valve of a connection delay timing on-off device is provided with a water flow sensor, and the signal output end of the water flow sensor is connected with the signal input end of a relay switch of the control chip. According to the tester, test time and cycle can be controlled effectively and accurately, the test efficiency is greatly improved, test resources are saved, the tester is produced by common devices within site, the production cost is low, and popularization is facilitated.
Description
technical field [0001] The invention relates to an inspection and testing instrument for electrical products. Background technique [0002] Electrical products need to undergo quality inspection before leaving the factory, and whether electrical appliances have quality problems due to voltage changes is one of the inspection subjects. During the inspection, it is necessary to repeatedly simulate changes in input voltage and conduct high and low voltage impact tests. At present, the high and low voltage impact test relies on manual conversion by human beings with the voltage regulator, which cannot be accurately timed, wastes time and effort, and the test results are inaccurate. Contents of the invention [0003] The technical problem to be solved by the invention is to realize a testing instrument that can automatically switch between high and low voltage impacts and has high safety and reliability. [0004] In order to achieve the above object, the technical solution ado...
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IPC IPC(8): G01R31/00G01R31/12
Inventor 肖贤梁石鹏张娟娟呼践焦昊
Owner 谛卓(北京)咨询顾问有限公司